Menu
▾
▴
linuxwacom-discuss
|
From: SHIRAKAWA A. <shi...@gm...> - 2009-10-23 15:20:33
|
Hello everybody. I hope somebody can help me solve this rather annoying problem I have with my Intuos4 Medium tablet and Ubuntu. Because of it I'm forced to use Windows. On some areas on the corners of the tablet (screen) the pointer tends to shake lightly but visibly even though the pen is perfectly still (pointer jitter). On the central area of the tablet the pointer appears instead to behave normally. This happens under Gnome on Ubuntu 9.04 and 9.10 RC (latest version at the time I'm writing). I tried to change USB ports, switch PC, and also change my Intuos4 pen, but with no luck. If I increase the Suppress value to higher values than default (30-40) this issue is somewhat mitigated, but at the cost of a sluggish cursor response, and when the pointer starts moving it still shakes a little anyway: it's not really a viable solution. Setting Suppress to 0 makes the pointer shake lightly but annoyingly almost everywhere on the screen. Oddly enough, with my previous Bamboo Fun tablet I didn't have any problem at all. Xidump reveals that on some areas around the corners of the tablet X and Y coordinates vary randomly and constantly back and forth by a maximum 25-30 units. I tried to install the new 0.8.5 development linuxwacom drivers, but with no luck. This problem appears to be occurring only on Linux: on Windows (Vista and Seven) on the same PC with the official Wacom drivers my Intuos4 tablet works flawlessly, and the pointer is perfectly stable everywhere on the screen. Does anybody else have this rather annoying problem under Linux with the Intuos4 tablet? I'm not really sure if this issue is due to a driver or a hardware problem. But again, the tablet works perfectly on Windows. -- SHIRAKAWA Akira |
|
From: Eric H. <son...@dr...> - 2009-10-23 15:26:31
|
Well, I can say that I don't have this issue at all. I am also running Ubuntu 9.04 with an Intuos 4 medium. Not helpful to you, but it's a data point. On Fri, Oct 23, 2009 at 10:19 AM, SHIRAKAWA Akira <shi...@gm... > wrote: > Hello everybody. > > I hope somebody can help me solve this rather annoying problem I have > with my Intuos4 Medium tablet and Ubuntu. Because of it I'm forced to > use Windows. > > On some areas on the corners of the tablet (screen) the pointer tends to > shake lightly but visibly even though the pen is perfectly still > (pointer jitter). On the central area of the tablet the pointer appears > instead to behave normally. > > This happens under Gnome on Ubuntu 9.04 and 9.10 RC (latest version at > the time I'm writing). I tried to change USB ports, switch PC, and also > change my Intuos4 pen, but with no luck. > If I increase the Suppress value to higher values than default (30-40) > this issue is somewhat mitigated, but at the cost of a sluggish cursor > response, and when the pointer starts moving it still shakes a little > anyway: it's not really a viable solution. > Setting Suppress to 0 makes the pointer shake lightly but annoyingly > almost everywhere on the screen. Oddly enough, with my previous Bamboo > Fun tablet I didn't have any problem at all. Xidump reveals that on some > areas around the corners of the tablet X and Y coordinates vary randomly > and constantly back and forth by a maximum 25-30 units. > > I tried to install the new 0.8.5 development linuxwacom drivers, but > with no luck. This problem appears to be occurring only on Linux: on > Windows (Vista and Seven) on the same PC with the official Wacom drivers > my Intuos4 tablet works flawlessly, and the pointer is perfectly stable > everywhere on the screen. > > Does anybody else have this rather annoying problem under Linux with the > Intuos4 tablet? I'm not really sure if this issue is due to a driver or > a hardware problem. But again, the tablet works perfectly on Windows. > > -- > SHIRAKAWA Akira > > > ------------------------------------------------------------------------------ > Come build with us! The BlackBerry(R) Developer Conference in SF, CA > is the only developer event you need to attend this year. Jumpstart your > developing skills, take BlackBerry mobile applications to market and stay > ahead of the curve. Join us from November 9 - 12, 2009. Register now! > http://p.sf.net/sfu/devconference > _______________________________________________ > Linuxwacom-discuss mailing list > Lin...@li... > https://lists.sourceforge.net/lists/listinfo/linuxwacom-discuss > -- Eric Honaker Dragonsept Arts and Publishing http://www.dragonseptarts.com/ |
|
From: SHIRAKAWA A. <shi...@gm...> - 2009-10-23 15:39:42
|
Eric Honaker wrote: > Well, I can say that I don't have this issue at all. I am also running > Ubuntu 9.04 with an Intuos 4 medium. Not helpful to you, but it's a > data point. Thanks anyway. At least it's a start. I hope it doesn't turn out I have a hardware problem as I have experienced the same issue on two different PCs. Once again, I have absolutely no problems under Windows (which I'm using right now). I must add that the jitter in my case occurs most noticeably when I hover the pointer slowly vertically on the extreme right and left corners of the tablet (roughly where the scrolling bars usually are, at least on the right side). When I do the same by touching the tablet with the tip of the pen it seems to jitter a bit less. Have you tried? -- SHIRAKAWA Akira |
|
From: Ping <pin...@gm...> - 2009-10-23 15:40:57
|
Does moving your I4 away from your monitor or laptop or just moving a bit around make a difference? The noise may be caused by the frequency of some other electronics. Not so sure. Just a guess.... Ping On Fri, Oct 23, 2009 at 8:19 AM, SHIRAKAWA Akira <shi...@gm...>wrote: > Hello everybody. > > I hope somebody can help me solve this rather annoying problem I have > with my Intuos4 Medium tablet and Ubuntu. Because of it I'm forced to > use Windows. > > On some areas on the corners of the tablet (screen) the pointer tends to > shake lightly but visibly even though the pen is perfectly still > (pointer jitter). On the central area of the tablet the pointer appears > instead to behave normally. > > This happens under Gnome on Ubuntu 9.04 and 9.10 RC (latest version at > the time I'm writing). I tried to change USB ports, switch PC, and also > change my Intuos4 pen, but with no luck. > If I increase the Suppress value to higher values than default (30-40) > this issue is somewhat mitigated, but at the cost of a sluggish cursor > response, and when the pointer starts moving it still shakes a little > anyway: it's not really a viable solution. > Setting Suppress to 0 makes the pointer shake lightly but annoyingly > almost everywhere on the screen. Oddly enough, with my previous Bamboo > Fun tablet I didn't have any problem at all. Xidump reveals that on some > areas around the corners of the tablet X and Y coordinates vary randomly > and constantly back and forth by a maximum 25-30 units. > > I tried to install the new 0.8.5 development linuxwacom drivers, but > with no luck. This problem appears to be occurring only on Linux: on > Windows (Vista and Seven) on the same PC with the official Wacom drivers > my Intuos4 tablet works flawlessly, and the pointer is perfectly stable > everywhere on the screen. > > Does anybody else have this rather annoying problem under Linux with the > Intuos4 tablet? I'm not really sure if this issue is due to a driver or > a hardware problem. But again, the tablet works perfectly on Windows. > > -- > SHIRAKAWA Akira > > > ------------------------------------------------------------------------------ > Come build with us! The BlackBerry(R) Developer Conference in SF, CA > is the only developer event you need to attend this year. Jumpstart your > developing skills, take BlackBerry mobile applications to market and stay > ahead of the curve. Join us from November 9 - 12, 2009. Register now! > http://p.sf.net/sfu/devconference > _______________________________________________ > Linuxwacom-discuss mailing list > Lin...@li... > https://lists.sourceforge.net/lists/listinfo/linuxwacom-discuss > |
|
From: SHIRAKAWA A. <shi...@gm...> - 2009-10-23 15:56:11
|
Ping wrote: > Does moving your I4 away from your monitor or laptop or just moving a > bit around make a difference? The noise may be caused by the frequency > of some other electronics. Not so sure. Just a guess.... I tried moving the tablet as far as one meter away from both my monitor and pc (it's a desktop pc, by the way), but with no changes. Please note that I do not have any wireless equipment around my workstation and that both the power outlet and the pc power cable are properly grounded. In the end to solve this problem (back in June, when I bought my I4) I had to switch back to Windows. Today I tried again my tablet on another PC with the recently released Ubuntu 9.10 RC, but I have exactly the same problem, no matter what is the USB port or the driver I use. I thought this could be a hardware problem (within the tablet, it can't be the pen as I got it exchanged under warranty for other reasons, and it didn't change anything), but if it was really so, wouldn't the same issue occur on Windows too? If you need me to do other testing, please do tell me. -- SHIRAKAWA Akira |
|
From: Ping <pin...@gm...> - 2009-10-23 16:00:09
|
If it works all right on Windows, it is not a hardware issue. Email me your Xorg.0.log and xorg.conf (if you have one, if not the output of "xinput list"). I hope it is not a driver issue either :). Ping On Fri, Oct 23, 2009 at 8:55 AM, SHIRAKAWA Akira <shi...@gm...>wrote: > Ping wrote: > >> Does moving your I4 away from your monitor or laptop or just moving a bit >> around make a difference? The noise may be caused by the frequency of some >> other electronics. Not so sure. Just a guess.... >> > > I tried moving the tablet as far as one meter away from both my monitor and > pc (it's a desktop pc, by the way), but with no changes. Please note that I > do not have any wireless equipment around my workstation and that both the > power outlet and the pc power cable are properly grounded. > > In the end to solve this problem (back in June, when I bought my I4) I had > to switch back to Windows. Today I tried again my tablet on another PC with > the recently released Ubuntu 9.10 RC, but I have exactly the same problem, > no matter what is the USB port or the driver I use. > > I thought this could be a hardware problem (within the tablet, it can't be > the pen as I got it exchanged under warranty for other reasons, and it > didn't change anything), but if it was really so, wouldn't the same issue > occur on Windows too? > > If you need me to do other testing, please do tell me. > > -- > SHIRAKAWA Akira > |
|
From: Emil A. <emi...@gm...> - 2009-10-24 10:28:16
|
Hi, I have this small jitter with a Cintiq 21UX but it's not that apperent when I use program that uses the "high-resolution" data like Gimp. The jitter is all over the screen but only when it jumps between the screen pixel boundaries. I don't know that much about the windows driver but they maybe uses some kind of reduction of the jitter for the pointer. it might be an idea to add some kind of "sluggishness" that average the last 10 ms position data to the xorg driver for the pointer. Do anyone know how the windows driver solves this? Can we find out? -- Emil Assarsson On Fri, Oct 23, 2009 at 5:59 PM, Ping <pin...@gm...> wrote: > If it works all right on Windows, it is not a hardware issue. Email me your > Xorg.0.log and xorg.conf (if you have one, if not the output of "xinput > list"). I hope it is not a driver issue either :). > > Ping > > On Fri, Oct 23, 2009 at 8:55 AM, SHIRAKAWA Akira <shi...@gm...> > wrote: >> >> Ping wrote: >>> >>> Does moving your I4 away from your monitor or laptop or just moving a bit >>> around make a difference? The noise may be caused by the frequency of some >>> other electronics. Not so sure. Just a guess.... >> >> I tried moving the tablet as far as one meter away from both my monitor >> and pc (it's a desktop pc, by the way), but with no changes. Please note >> that I do not have any wireless equipment around my workstation and that >> both the power outlet and the pc power cable are properly grounded. >> >> In the end to solve this problem (back in June, when I bought my I4) I had >> to switch back to Windows. Today I tried again my tablet on another PC with >> the recently released Ubuntu 9.10 RC, but I have exactly the same problem, >> no matter what is the USB port or the driver I use. >> >> I thought this could be a hardware problem (within the tablet, it can't be >> the pen as I got it exchanged under warranty for other reasons, and it >> didn't change anything), but if it was really so, wouldn't the same issue >> occur on Windows too? >> >> If you need me to do other testing, please do tell me. >> >> -- >> SHIRAKAWA Akira > > > ------------------------------------------------------------------------------ > Come build with us! The BlackBerry(R) Developer Conference in SF, CA > is the only developer event you need to attend this year. Jumpstart your > developing skills, take BlackBerry mobile applications to market and stay > ahead of the curve. Join us from November 9 - 12, 2009. Register now! > http://p.sf.net/sfu/devconference > _______________________________________________ > Linuxwacom-discuss mailing list > Lin...@li... > https://lists.sourceforge.net/lists/listinfo/linuxwacom-discuss > > -- Emil |
|
From: SHIRAKAWA A. <shi...@gm...> - 2009-11-01 06:47:57
|
Ping wrote: > If it works all right on Windows, it is not a hardware issue. Email me > your Xorg.0.log and xorg.conf (if you have one, if not the output of > "xinput list"). I hope it is not a driver issue either :). Today I tried installing 0.8.5-1 Linux drivers on my Ubuntu machine, but they didn't solve my problem. If it helps, I found out that this jitter becomes VERY evident (the pointer becomes very shaky, impossible to not notice it) when mapping the screen area to a very small area of the tablet (for example 1x1 inches). I propose this as a test for other Intuos4 users. Please set the mapping to a very small portion of the tablet and see what happens. By using a very small portion of the tablet I noticed also that increasing the suppress value while mitigates this problem makes the pointer move not very precisely, like if it was on a grid. On Windows even if i select a very small area of the tablet the pointer moves very smoothly with great precision, without shaking of course. So Windows drivers: - Don't appear to use a high suppress value, if at all - Must set smoothness to a low value, as there is no perceived lag I've read on the official Wacom forums that Intuos4 pens are individually calibrated. I wonder if tablets too have some sort of individual calibration and pass this information to Windows drivers in order to provide smooth operation. This problem I'm having (on two different PCs with different CPU/chipset in the same place, but ONLY under Linux) must be either caused by something missing in Linuxwacom drivers or in some other subsystem (Xorg/Gnome/etc). Yesterday I tried a 32 bit version of Ubuntu and I had the same problem. In the following days I'll try different Linux distributions and desktop managers and check what happens. -- SHIRAKAWA Akira |
|
From: Grant S. <gr...@al...> - 2009-11-04 00:43:07
Attachments:
xorg.conf
|
Hello all I am getting some weird behavior, that I was wondering if someone could help me out? I have compiled and installed 0.8.4-3 and it seems to be woring fine. I can set the TwinView option in the xorg.conf file but I cannot set it via xsetwacom because it segfaults. eg /var/log/messages Nov 3 16:07:25 crate kernel: xsetwacom[10076]: segfault at 0000000010000000 rip 00000030ace7b300 rsp 00007fff32b52638 error 4 other xsetwacom options work flawlessly attached is my xorg file I noticed that a previous thread referred to this and the suggested solution was to remove Option "ForceDevice" "ISDV4" # Tablet PC ONLY But I don't have a line like that. Any thoughts? Grant |
|
From: SHIRAKAWA A. <shi...@gm...> - 2009-10-24 11:10:18
|
Emil Assarsson wrote: > I don't know that much about the windows driver but they maybe uses > some kind of reduction of the jitter for the pointer. it might be an > idea to add some kind of "sluggishness" that average the last 10 ms > position data to the xorg driver for the pointer. Well, in Linux drivers there's already a "RawSample" setting which averages the last N pointer position samples. Most Wacom tablets have a 133 Hz sample rate, so a RawSample of 4 samples (the default value) already averages about 30 milliseconds of data (1000/133*4). Ramping up this setting doesn't bring appreciable changes on jitter unless high values are used (15 and up), which introduce in my opinion excessive pointer lag. Windows drivers work perfectly with no lag, so if they have some jitter reduction feature, it's probably not just by averaging the last few data samples. By the way, if on Linux Wacom drivers we had an option to use on Intuos4 tablets the special 200 Hz sampling rate mode, a higher "RawSample" setting could be used without adding more pointer lag (for a target of 30 ms, we could use a RawSample value of 6 with no difference compared to the 133 Hz mode). To the developers reading this: are there any plans to introduce this option in the near future? It's rather useful (not only to raise RawSample, of course). -- SHIRAKAWA Akira |
|
From: Kory P. <kor...@gm...> - 2009-10-25 00:35:01
|
Okay I have two quick questions about the 0.8.5 release: 1. What happened to the 64bit prebuilt folder? 2. What happened to the 2.6.31 kernel folder? Building now builds in the 2.6.28 folder. Is this okay? And will the module work for the a 2.6.31 kernel? Thanks! Kory |
|
From: Ping <pin...@gm...> - 2009-10-25 05:20:25
|
Quick answers inline. Ping On Sat, Oct 24, 2009 at 5:34 PM, Kory Prince <kor...@gm...> wrote: > Okay I have two quick questions about the 0.8.5 release: > > 1. What happened to the 64bit prebuilt folder? > Did I miss to fill the prebuilt driver there (I can not access my system now)? If that is the case, I'll make a new one soon. 2. What happened to the 2.6.31 kernel folder? Building now builds in the > 2.6.28 folder. Is this okay? And will the module work for the a 2.6.31 > kernel? > 2.6.31 path was intended for Graphire BlueTooth support (the code for other models are exactly the same as in 2.6.28). I found Graphire BlueTooth has been supported in 2.6.31 kernel.org. So there is no need to duplicate the work here. Ping |
|
From: Ping <pin...@gm...> - 2009-10-26 23:54:32
|
Hi group, I am afraid I can not keep my promise this time - I am very busy testing a new release. This release makes the two major features, "avoid duplicated devices and validate device type before adding it" that we included in 0.8.5, more reliable and user-friendly. If the lack of 64 path doesn't cause too much issue in the next few days, please bear with me. So, I can post one that is better than 0.8.5. Thank you for your patience. Ping On Sat, Oct 24, 2009 at 10:20 PM, Ping <pin...@gm...> wrote: > Quick answers inline. > > Ping > > On Sat, Oct 24, 2009 at 5:34 PM, Kory Prince <kor...@gm...>wrote: > >> Okay I have two quick questions about the 0.8.5 release: >> >> 1. What happened to the 64bit prebuilt folder? >> > > Did I miss to fill the prebuilt driver there (I can not access my system > now)? If that is the case, I'll make a new one soon. > > 2. What happened to the 2.6.31 kernel folder? Building now builds in the >> 2.6.28 folder. Is this okay? And will the module work for the a 2.6.31 >> kernel? >> > > 2.6.31 path was intended for Graphire BlueTooth support (the code for other > models are exactly the same as in 2.6.28). I found Graphire BlueTooth has > been supported in 2.6.31 kernel.org. So there is no need to duplicate the > work here. > > Ping > |
|
From: SHIRAKAWA A. <shi...@gm...> - 2009-12-22 18:25:09
|
On 2009-10-23 17:19, SHIRAKAWA Akira wrote: > Hello everybody. > > I hope somebody can help me solve this rather annoying problem I have > with my Intuos4 Medium tablet and Ubuntu. Because of it I'm forced to > use Windows. Hello group, Today I tried Running Ubuntu 9.10 64 bit on Windows 7 64 bit under a VirtualBox virtual machine with USB support. My Intuos4 tablet works correctly, except for the same jitter problem that is still there, virtualized on my Windows machine. As this doesn't occur under Windows in native mode (the pointer is perfectly stable) on the very same pc, I'm now almost certain that it's a Linux driver / software fault of some sort. I hope this little information might help in debugging this very annoying problem. Please note that I still haven't tried to install the latest development drivers (although I did try development drivers natively under Linux a few weeks ago - with no change in the odd pen behavior). -- SHIRAKAWA Akira |
|
From: Eric H. <son...@dr...> - 2009-12-22 18:29:34
|
I'm running Ubuntu 9.10 64 bit, using the Linux-wacom drivers from the repository and an Intuos 4 Medium. I have no jitter at all. So, it's something more complicated than simply the combination of linux drivers and Intuos 4, unfortunately. On Tue, Dec 22, 2009 at 12:24 PM, SHIRAKAWA Akira <shi...@gm... > wrote: > On 2009-10-23 17:19, SHIRAKAWA Akira wrote: > > Hello everybody. > > > > I hope somebody can help me solve this rather annoying problem I have > > with my Intuos4 Medium tablet and Ubuntu. Because of it I'm forced to > > use Windows. > > Hello group, > > Today I tried Running Ubuntu 9.10 64 bit on Windows 7 64 bit under a > VirtualBox virtual machine with USB support. My Intuos4 tablet works > correctly, except for the same jitter problem that is still there, > virtualized on my Windows machine. > > As this doesn't occur under Windows in native mode (the pointer is > perfectly stable) on the very same pc, I'm now almost certain that it's > a Linux driver / software fault of some sort. > > I hope this little information might help in debugging this very > annoying problem. Please note that I still haven't tried to install the > latest development drivers (although I did try development drivers > natively under Linux a few weeks ago - with no change in the odd pen > behavior). > > -- > SHIRAKAWA Akira > > > ------------------------------------------------------------------------------ > This SF.Net email is sponsored by the Verizon Developer Community > Take advantage of Verizon's best-in-class app development support > A streamlined, 14 day to market process makes app distribution fast and > easy > Join now and get one step closer to millions of Verizon customers > http://p.sf.net/sfu/verizon-dev2dev > _______________________________________________ > Linuxwacom-discuss mailing list > Lin...@li... > https://lists.sourceforge.net/lists/listinfo/linuxwacom-discuss > |
|
From: SHIRAKAWA A. <shi...@gm...> - 2009-12-22 18:38:17
|
On 2009-12-22 19:29, Eric Honaker wrote: > I'm running Ubuntu 9.10 64 bit, using the Linux-wacom drivers from the > repository and an Intuos 4 Medium. I have no jitter at all. > > So, it's something more complicated than simply the combination of linux > drivers and Intuos 4, unfortunately. Tomorrow I'll be able to try the same tablet and distribution (from live USB) on two other different computers. If it isn't the tablet (in other words, if the tablet works correctly on those computers) then it has to be something wrong between linux/linuxwacom drivers/the Intel G45 chipset of my computer. Still, I can't understand why under Windows the tablet works flawlessly, though. -- SHIRAKAWA Akira |
|
From: Alexia D. <ale...@gm...> - 2009-12-22 19:23:28
|
On Tuesday 22 December 2009 20:24:44 SHIRAKAWA Akira wrote: > > Today I tried Running Ubuntu 9.10 64 bit on Windows 7 64 bit under a > VirtualBox virtual machine with USB support. My Intuos4 tablet works > correctly, except for the same jitter problem that is still there, > virtualized on my Windows machine. > > As this doesn't occur under Windows in native mode (the pointer is > perfectly stable) on the very same pc, I'm now almost certain that it's > a Linux driver / software fault of some sort. Your result actually proves, that there is nothing wrong with linuxwacom drivers because for virtualbox USB they are bypassed completely and the windows driver handles raw usb data. The part that I believe differs for you between native and virtual is the linux USB controller driver for you particular chipset. There seems to be some sort of a problem on that level. a bug or an utilization difference that adds noise. I dont know USB architecture too well, but If I was you I would test the tablet with an external powered hub in case there is a problem with providing power and perhaps try to force the driver to use an older 1.1 USB protocol. Most esoteric thing I can come up with is that you are using a CRT monitor that is used at different frequency&resolution between OSes and generates disturbing RF noise. -- Alexia |
|
From: SHIRAKAWA A. <shi...@gm...> - 2009-12-22 20:31:39
|
On 2009-12-22 20:23, Alexia Death wrote: > Your result actually proves, that there is nothing wrong with linuxwacom > drivers because for virtualbox USB they are bypassed completely and the > windows driver handles raw usb data. You're right in that the windows usb data is bypassed, but I don't see how this alone proves that there's nothing wrong with linuxwacom drivers. > The part that I believe differs for you > between native and virtual is the linux USB controller driver for you > particular chipset. There seems to be some sort of a problem on that level.a If it's not the linuxwacom drivers, it must be something like that, yes. Otherwise the difference between Linux and Windows (native or virtualized, same results) couldn't be explained. > bug or an utilization difference that adds noise. I dont know USB architecture > too well, but If I was you I would test the tablet with an external powered > hub in case there is a problem with providing power and perhaps try to force > the driver to use an older 1.1 USB protocol. I don't have an externally powered USB hub, but Wacom tablets have a very low energy consumption. I don't think that the amount of power the usb port can offer is the problem. I'll try using the 1.1 USB protocol if possible and check if the problem can be solved, but if it works it's a very ugly workaround (I rely heavily on USB mass storage instead, so I need USB to work at full speed). > Most esoteric thing I can come up with is that you are using a CRT monitor > that is used at different frequency&resolution between OSes and generates > disturbing RF noise. I use a fairly modern LCD monitor. Also, when the jitter problem occurs on Linux under VirtualBox in Windows, the screen resolution or any other related parameter isn't changed at all. I even tried using the tablet as far from the pc as the usb cable allows, but with no change in the jitter. * * * BY THE WAY, I just tried the same Ubuntu 9.10 64-bit USB live distribution on a dual core AMD Athlon X2 5200+, Nforce 430 Chipset, 3 GB RAM in a different room with another LCD monitor, so completely different conditions/pc, and I've experienced exactly the same jitter problem I have here. I don't know what to think anymore... If it's the tablet, why under Windows it works perfectly it's beyond my comprehension. I also guess it's not an USB driver issue. -- SHIRAKAWA Akira |
|
From: Alexia D. <ale...@gm...> - 2009-12-22 20:51:54
|
On Tue, Dec 22, 2009 at 10:31 PM, SHIRAKAWA Akira <shi...@gm...> wrote: > On 2009-12-22 20:23, Alexia Death wrote: > >> Your result actually proves, that there is nothing wrong with linuxwacom >> drivers because for virtualbox USB they are bypassed completely and the >> windows driver handles raw usb data. > You're right in that the windows usb data is bypassed, but I don't see how > this alone proves that there's nothing wrong with linuxwacom drivers. Well, nothing to do with the shaking anyway because the linuxwacom driver does not touch this data AFAIK. > If it's not the linuxwacom drivers, it must be something like that, yes. > Otherwise the difference between Linux and Windows (native or virtualized, > same results) couldn't be explained. Your last mail said that windows virual on linux shared the problem, right? > I don't have an externally powered USB hub, but Wacom tablets have a very > low energy consumption. I don't think that the amount of power the usb port > can offer is the problem. Amount shouldn't be the problem but stability may be. > I'll try using the 1.1 USB protocol if possible > and check if the problem can be solved, but if it works it's a very ugly > workaround (I rely heavily on USB mass storage instead, so I need USB to > work at full speed). If it works, complaints/bugs probably need to land on the USB driver. > I don't know what to think anymore... > If it's the tablet, why under Windows it works perfectly it's beyond my > comprehension. I also guess it's not an USB driver issue. Not under virtual windows in linux tho, right? If it worked there too, one might suspect that windows driver is doing some smoothing.... I dont know... In electronics, unexplained noise usually starts with a bad ground connection somewhere... but here... good luck anyway, --Alexia |
|
From: SHIRAKAWA A. <shi...@gm...> - 2009-12-22 21:17:35
|
On 2009-12-22 21:51, Alexia Death wrote: > Well, nothing to do with the shaking anyway because the linuxwacom > driver does not touch this data AFAIK. I think I've seen in the linuxwacom drivers a connection speed setting (even if I'm using a USB tablet). I don't know if it can be tweaked or not, maybe it can help. But again, other users report no problem... > Your last mail said that windows virual on linux shared the problem, right? More like this: - on native Windows Vista (Nforce 430, AMD Athlon X2) = OK - on native Windows Vista (Intel G45, Core 2 Duo E8500) = OK - on native Windows 7 (Intel G45, Core 2 Duo E8500) = OK - on native Ubuntu 9.XX XXbit (Intel G45, Core 2 Duo E8500) = Jitter! - on native Ubuntu 9.10 64bit (Nforce 430, AMD Athlon X2) = Jitter! - on native Ubuntu 9.XX 32bit (Nforce 2, AMD Athlon XP) = Jitter! - on virtual Ubuntu 9.10 64bit (Intel G45, Core 2 Duo E8500) = Jitter! I still haven't had the chance to check under virtual Windows under Linux, but I suspect the tablet would work correctly if USB data is passed raw to the virtualized system. > Amount shouldn't be the problem but stability may be. Could be, but in the end (the last part of my previous message) I tried on a different PC and the problem was still there. > If it works, complaints/bugs probably need to land on the USB driver. Unfortunately I've been unable to force USB speed to 1.1 on my current PC. I should try on other ones (even an Intel Atom netbook) tomorrow. >> I don't know what to think anymore... >> If it's the tablet, why under Windows it works perfectly it's beyond my >> comprehension. I also guess it's not an USB driver issue. > Not under virtual windows in linux tho, right? If it worked there too, > one might suspect that windows driver is doing some smoothing.... Unfortunately I can't try Virtual Windows in Linux, at least not right now. It would take a while to set up. > I dont know... In electronics, unexplained noise usually starts with a > bad ground connection somewhere... but here... I checked that too; the ground connection on every pc in my house is ok. My PC actually had a faulty ground until a few months ago, but that was before I got my Intuos tablet (and my previous Bamboo Fun tablet worked excellently under Ubuntu anyway, no jitter at all). -- SHIRAKAWA Akira |
|
From: SHIRAKAWA A. <shi...@gm...> - 2009-12-23 13:49:44
|
On 2009-12-22 22:17, SHIRAKAWA Akira wrote: > I checked that too; the ground connection on every pc in my house is ok. > My PC actually had a faulty ground until a few months ago, but that was > before I got my Intuos tablet (and my previous Bamboo Fun tablet worked > excellently under Ubuntu anyway, no jitter at all). Just for the record, today I tried a few other Linux distributions under VirtualBox on my pc, and they all got the same jitter problem (I tried both 32 and 64 bit versions): - OpenSuse - Fedora - (then, as I suspected a Gnome problem) Kubuntu -- SHIRAKAWA Akira |
|
From: Loïc M. <loi...@gm...> - 2010-01-29 18:02:35
|
On 22/12/2009 19:24, SHIRAKAWA Akira wrote: > Today I tried Running Ubuntu 9.10 64 bit on Windows 7 64 bit under a > VirtualBox virtual machine with USB support. My Intuos4 tablet works > correctly, except for the same jitter problem that is still there, > virtualized on my Windows machine. > > As this doesn't occur under Windows in native mode (the pointer is > perfectly stable) on the very same pc, I'm now almost certain that it's > a Linux driver / software fault of some sort. > > I hope this little information might help in debugging this very > annoying problem. Please note that I still haven't tried to install the > latest development drivers (although I did try development drivers > natively under Linux a few weeks ago - with no change in the odd pen > behavior). > A late reply, because I'm now only starting to read month overdue mailing lists mails (switching to Thunderbird 3.0 was a bit of a pain). I didn't see any solution to your post reported yet, so the following might interest you. A similar problem has been reported in the past, see : > http://sourceforge.net/mailarchive/forum.php?thread_name=1140803204.8734.22.camel%40localhost.localdomain&forum_name=linuxwacom-discuss > http://sourceforge.net/mailarchive/forum.php?thread_name=45573.206.248.139.185.1139682959.squirrel%40mail.cs.mcgill.ca&forum_name=linuxwacom-discuss > http://sourceforge.net/mailarchive/forum.php?thread_name=43B46F8C.60702%40gmail.com&forum_name=linuxwacom-discuss Ping might tell you if that problem has been fixed since then, but since it's AFAIK mostly related to the drawing programs it's possible you're facing the same problem. See the last link for the solution that worked for me, and an example screenshot of the problem at > http://sourceforge.net/mailarchive/attachment.php?list_name=linuxwacom-discuss&message_id=43B46F8C.60702%40gmail.com&counter=1 I definitely remember seeing that same problem on a Wacom tablets demonstration booth in 2005, and they were running Windows XP (and probably Corel Paint, I can't remember since I didn't stay long after noticing they couldn't be bothereed to set their stuff properly). So the problem might not be directly related to the Linuxwacom drivers (else Ping would have seen it already, nor especially a combination of hardware - since I was able to solve that on the same hardware - but more a drawing program configuration problem related to tilt. I haven't faced this problem personally since then, but I've seen the problem talked about during the years on different forums and on the linuxwacom mailing lists. Cheers, Loïc |
|
From: SHIRAKAWA A. <shi...@gm...> - 2010-01-29 18:12:49
|
On 2010-01-29 19:02, Loïc Martin wrote: [cut] > hardware - since I was able to solve that on the same hardware - but > more a drawing program configuration problem related to tilt. I haven't > faced this problem personally since then, but I've seen the problem > talked about during the years on different forums and on the linuxwacom > mailing lists. Hi, Unfortunately the problem occurs everywhere: in the Gnome desktop, in drawing programs, in xidump, etc. I don't think it's a program configuration problem. Also in past months I had a Wacom Bamboo Fun and it worked properly, then I upgraded to my current Intuos4 tablet (on the same pc/linux distribution) and the jitter issue began, mostly on the corners of the tablet. Now that I think about it, yes, it could be a general problem with tilt (the Bamboo Fun had no tilt support), but right now my only solution for solving this problem is using Windows, unfortunately, where the tablet works flawlessly. I need working tilt too (in case disabling it would solve the jitter problem). Thanks anyway, SHIRAKAWA Akira |
|
From: Ping C. <pin...@gm...> - 2010-01-29 20:01:45
|
On Fri, Jan 29, 2010 at 10:11 AM, SHIRAKAWA Akira <shi...@gm... > wrote: > On 2010-01-29 19:02, Loïc Martin wrote: > [cut] > > hardware - since I was able to solve that on the same hardware - but > > more a drawing program configuration problem related to tilt. I haven't > > faced this problem personally since then, but I've seen the problem > > talked about during the years on different forums and on the linuxwacom > > mailing lists. > > Hi, > > Unfortunately the problem occurs everywhere: in the Gnome desktop, in > drawing programs, in xidump, etc. I don't think it's a program > configuration problem. Also in past months I had a Wacom Bamboo Fun and > it worked properly, then I upgraded to my current Intuos4 tablet (on the > same pc/linux distribution) and the jitter issue began, mostly on the > corners of the tablet. > I have no clue why this happens with I4 but not with BambooFun. I4 should perform much better than BambooFun, in general. Do you have another I4 to test with? > Now that I think about it, yes, it could be a general problem with tilt > (the Bamboo Fun had no tilt support), but right now my only solution for > solving this problem is using Windows, unfortunately, where the tablet > works flawlessly. I need working tilt too (in case disabling it would > solve the jitter problem). Tilt can not be the cause since it is not used to offset or filter the motion events, no matter you are runing a Linux or Windows driver. Sorry for not being able to provide any meaningful suggestions. Ping |
