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Re: [Linuxwacom-devel] [Linuxwacom-discuss] Jagged line when drawing with wacom Bamboo fun (linuxwacom 0.8.1-4, xorg 1.4.2)
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From: Alexia D. <ale...@gm...> - 2008-09-11 05:11:25
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On Thursday 11 September 2008 06:51:41 Liu Xiaojun wrote: > Hi, > > When I draw lines in xournal or gimp, I find the line is jagged. Could you attach a sample image of the jaggedness? I also have bamboo, but CTE-650. I have noticed no such issues. -- alexia > Since > the quality of drawing > is important and now it is hard for me to accept it :-( I think it > probably related to the resolution: > here is some Information I gathered: > > wacom: Bamboo fun CTE-450 > LCD resolution: 1440x900 > > system: Debian testing > linux kernel: 2.6.26 > xorg version : 1.4.2 > linuxwacom: 0.8.1-4 > > # xidump -l -v stylus > stylus extension > key: min=8, max=255, num=248 > btn: num=5 > val: axes=6 mode=abs buf=256 > axis[0]: res=248, min=0, max=1440 > axis[1]: res=248, min=0, max=900 > axis[2]: res=1, min=0, max=511 > axis[3]: res=1, min=-64, max=63 > axis[4]: res=1, min=-64, max=63 > axis[5]: res=1, min=0, max=1023 > > see the "res=248", I think it is low > > # xidump -l -v cursor > cursor extension > key: min=8, max=255, num=248 > btn: num=5 > val: axes=6 mode=rel buf=256 > axis[0]: res=248, min=0, max=1440 > axis[1]: res=248, min=0, max=900 > axis[2]: res=1, min=0, max=511 > axis[3]: res=1, min=-900, max=899 > axis[4]: res=1, min=-1023, max=1023 > axis[5]: res=1, min=0, max=1023 > > which is the same "res=248". > > # wacdump /dev/input/wacom > > result is good, since I can see the "pos_X: 0~ 14760, pos_Y:0~9225" > increasing > smoothly when I drag my pen from left to right, up and down. > > # grep -i wacom /var/log/Xorg.0.log > > neo@zeal:~$ grep -i wacom /var/log/Xorg.0.log > (II) LoadModule: "wacom" > (II) Loading /usr/lib/xorg/modules/input//wacom_drv.so > (II) Module wacom: vendor="X.Org Foundation" > (II) Wacom driver level: 47-0.8.1-4 $ > (**) stylus device is /dev/input/wacom > (**) WACOM: suppress value is 5 > (**) eraser device is /dev/input/wacom > (**) WACOM: suppress value is 5 > (**) cursor device is /dev/input/wacom > (**) WACOM: suppress value is 5 > (**) pad device is /dev/input/wacom > (**) WACOM: suppress value is 5 > (II) XINPUT: Adding extended input device "stylus" (type: Wacom Stylus) > (II) XINPUT: Adding extended input device "eraser" (type: Wacom Eraser) > (II) XINPUT: Adding extended input device "cursor" (type: Wacom Cursor) > (II) XINPUT: Adding extended input device "pad" (type: Wacom Pad) > (**) Option "Device" "/dev/input/wacom" > stylus Wacom X driver grabbed event device > (==) Wacom using pressure threshold of 30 for button 1 > (==) Wacom USB BambooFun tablet speed=9600 (38400) maxX=14760 maxY=9225 > maxZ=511 resX=2540 resY=2540 tilt=disabled > (==) Wacom device "stylus" top X=0 top Y=0 bottom X=14760 bottom Y=9225 > resol X=2540 resol Y=2540 > (==) Wacom device "eraser" top X=0 top Y=0 bottom X=14760 bottom Y=9225 > resol X=2540 resol Y=2540 > (==) Wacom device "cursor" top X=0 top Y=0 bottom X=14760 bottom Y=9225 > resol X=2540 resol Y=2540 > (==) Wacom device "pad" top X=0 top Y=0 bottom X=14760 bottom Y=9225 resol > X=2540 resol Y=2540 > > see the resol X=2540 resol Y=2540, is this low? > > I have altered the suppress value from 0 to highest number and altered > back, but > it does not help much. The line is still jagged. > > I'm searching for anwser for a long time, and I find someone mentioned that > it related to a bug of xorg 1.4.x, and they said there is a workaround to > do > > rescaling by wacom itself, by manually re-compile the linuxwacom source > code. > > I followed this suggestion, and copy the recompiled wacom_drv.so to replace > the prebuild version > of /usr/lib/xorg/modules/input/wacom_drv.so . However, this does not help. > Everything is > unchangded. The line is still jagged. > > So, is there any way to improve the resolution ? I prefer an anwser WITHOUT > making changes to the Xorg version:-) (Since It may cause other problems in > my system.) > > Many thanks! > > Best Regards, > Xiaojun > > > ATTACHED: xorg.conf: > > Section "ServerLayout" > Identifier "Default Layout" > Screen "Default Screen" 0 0 > InputDevice "Generic Keyboard" > InputDevice "Configured Mouse" > InputDevice "stylus" "SendCoreEvents" # For Bamboo fun > InputDevice "eraser" "SendCoreEvents" > InputDevice "cursor" "SendCoreEvents" > InputDevice "pad" > EndSection > > Section "Files" > EndSection > > Section "Module" > Load "glx" > EndSection > > Section "InputDevice" > Identifier "Generic Keyboard" > Driver "kbd" > Option "CoreKeyboard" > Option "XkbRules" "xorg" > Option "XkbModel" "pc104" > Option "XkbLayout" "us" > EndSection > > Section "InputDevice" > Identifier "Configured Mouse" > Driver "mouse" > Option "CorePointer" > Option "Device" "/dev/input/mice" > Option "Protocol" "ImPS/2" > Option "Emulate3Buttons" "true" > EndSection > > Section "InputDevice" > Driver "wacom" > Identifier "stylus" > Option "Device" "/dev/input/wacom" > Option "Type" "stylus" > Option "USB" "on" > Option "Suppress" "5" > EndSection > > Section "InputDevice" > Driver "wacom" > Identifier "eraser" > Option "Device" "/dev/input/wacom" > Option "Type" "eraser" > Option "USB" "on" > EndSection > > Section "InputDevice" > Driver "wacom" > Identifier "cursor" > Option "Device" "/dev/input/wacom" > Option "Type" "cursor" > Option "USB" "on" > EndSection > > Section "InputDevice" > Driver "wacom" > Identifier "pad" > Option "Device" "/dev/input/wacom" > Option "Type" "pad" > Option "USB" "on" > EndSection > > > > Section "Monitor" > Identifier "Generic Monitor" > HorizSync 28.0 - 72.0 > VertRefresh 43.0 - 60.0 > Option "DPMS" > EndSection > > Section "Device" > Identifier "nVidia Corporation GeForce 8300 GS" > Driver "nvidia" > EndSection > > Section "Screen" > Identifier "Default Screen" > Device "nVidia Corporation GeForce 8300 GS" > Monitor "Generic Monitor" > DefaultDepth 24 > SubSection "Display" > Depth 24 > Modes "1440x900" > EndSubSection > EndSection > > Section "Extensions" > Option "Composite" "true" > EndSection |