digimend-users — General discussion and user support

Re: [DIGImend-users] hello

[Dima U. <dim...@gm...>]

---
> I plan to build and distribute kernel packages for major distributions 
> with
> tablet support added soon. Please subscribe or just visit the project 
> blog
> at http://sourceforge.net/apps/wordpress/digimend/ from time to time 
> to see
> when they're ready. Which distribution do you use?
I'm using ArchLinux, so I should get the new driver pretty soon...
> Although it may be an interesting task, I wouldn't recommend implementing
> support for these "virtual" buttons. The problem is that they're not 
> really
> useful much. When you use your tablet, you look at the screen most of the
> time, but to hit these buttons you have to look at the tablet, because 
> it is
> hard to locate them by feel. As a result you loose concentration, 
> which is
> not good for productivity.
>
> That's why I never implemented support for them for any tablet.
Now I understand...yes, you are right ;)
>
> If you want some good tablet-related programming practice, try your hand
> with xf86-input-evdev - it is still missing several tablet-related 
> features.
> However, before taking on a significant task, contact Peter Hutterer
> <pet...@wh...> and ask if he would accept the change and the
> design.
>
> Sincerely,
> Nick
I will  try that. I will search first for some documentation about 
xf86-input-evdev...
btw... can you give me a link, or write here which are those 
tablet-related features?

thanks, Dima.

Re: [DIGImend-users] hello

[Nikolai K. <sp...@gm...>]

Hi Dumitru,

I'm copying this reply to the DIGImend maillist at
dig...@li... to have this conversation published so
others could benefit from it. Please use "Reply to all" instead of "Reply"
to keep it published.

On 04/09/2012 04:55 PM, Dima Ursu wrote:
> hello, I've read the interview on www.libregraphicsworld.org about digital tablets.

Great! Then the interview was worth it :)

> I own an Genius g-pen F509, and I can tell you for sure that it works with xf86-input-wacom,
> but the thing is that buttons from stylus aren't recognized properly. but using xf86-input-wizardpen, it works well enough.

This is interesting. However, xf86-input-wizardpen was discontinued (not for
the first time, though).

As you probably now, I made a kernel driver for this tablet, which should be
included into 3.4 kernel relase. I expect your tablet pen buttons to work
correctly with my kernel driver and xf86-input-wacom.

I plan to build and distribute kernel packages for major distributions with
tablet support added soon. Please subscribe or just visit the project blog
at http://sourceforge.net/apps/wordpress/digimend/ from time to time to see
when they're ready. Which distribution do you use?

> what doesn't work at all is those shortcut squares on the sides and the upper part, which makes a great part of the tablet
> just a piece of useless plastic.
>
> I know C language ( although I don't have much experience, I'm just a student ), and I would like to help
> by making those shortcuts work, and the pen buttons work properly. Can you provide me some guidance throughout all this?

Although it may be an interesting task, I wouldn't recommend implementing
support for these "virtual" buttons. The problem is that they're not really
useful much. When you use your tablet, you look at the screen most of the
time, but to hit these buttons you have to look at the tablet, because it is
hard to locate them by feel. As a result you loose concentration, which is
not good for productivity.

That's why I never implemented support for them for any tablet.

As I said above, my kernel driver makes pen buttons work. At least to the
extent possible with Waltop tablets - they're not very well implemented.

If you want some good tablet-related programming practice, try your hand
with xf86-input-evdev - it is still missing several tablet-related features.
However, before taking on a significant task, contact Peter Hutterer
<pet...@wh...> and ask if he would accept the change and the
design.

Sincerely,
Nick

Re: [DIGImend-users] Bizarre Tablet Issue

[Nikolai K. <sp...@gm...>]

Hi Zauber,

I'm CCing your message to the DIGImend mailing list, so that other users
could see it. Please reply using "Reply to all".

On Mon, Apr 2, 2012 at 5:42 AM, Zauber Paracelsus
<zau...@gm...> wrote:
> I've got a UC-Logic tablet, and I've been having some VERY bizarre
> issues with it.  I've got a dual-monitor setup (both widescreens), and
> I followed the instructions for setting the coordinate transformation
> matrixes up, as shown in this forum thread:
>
> http://ubuntuforums.org/showthread.php?t=1656089&page=4
>
> However, any time any of these settings are changed, they apply
> correctly, but the tablet begins having issues:  the cursor's
> X-position keeps going to zero and snapping back at random.  The link
> below is for a snapshot of my attempt to draw a straight vertical line:
>
> https://lh4.googleusercontent.com/-uzqvoPIhJEU/T2QEt1hA6GI/AAAAAAAACJo/RwIm_4jAoLg/s642/AttemptedStraightLine.png
>
> This all happened about two weeks ago, at which point I gave up for the
> time being.  But, I still want to try and get this working, without
> some sideways workaround (like using a VNC-connected laptop for it).
>
> In the end, Favux recommended I speak with you, so I'm wondering if you
> can help me fix it, or at least debug it so that the source of the
> problem can be figured out.

This might be an xf86-input-evdev issue. Still, let's check that it's
getting correct data.

Once the issue is showing well again, could you please try capturing "sudo
evtest" output for your tablet, while you move the pen inside a small area
within the center of the tablet (so that jumps could be more obvious)?

If evtest complains that it can't grab the device, please switch to a text
console and execute "sudo evtest" there.

Evtest will show you two devices for your tablet - one for the pen, one for
the mouse you don't have. The mouse device will produce no output when
moving the pen, please run evtest with the other one.

Please send me the output. If it shows no jumps, then I'll try to reproduce
the issue and will look into the xf86-input-evdev source. Otherwise, we will
try to check if it's a hardware issue.

BTW, under which name was your tablet sold?

Thank you.

Sincerely,
Nick