Wacom Intuos 2 - pressure sensitivity not working

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Wacom Intuos 2 - pressure sensitivity not working

Postby Jernau on Sat Mar 15, 2008 6:56 am

Greetings,

I have been able to successfully activate the Wacom drivers and use my Intuos 2 A5 as a mouse - but I can't seem to figure out how to turn on pressure sensitivity.

The relevant sections of my xorg.conf look like this:
Code: Select all
Section "InputDevice"
    Identifier     "stylus"
    Driver         "wacom"
    Option         "Device" "/dev/input/wacom"
    Option         "Type" "stylus"
    Option         "PressCurve" "50,0,100,50"   # Custom preference
    Option         "Threshold" "60"      # sensetivity to do a "click"
    Option         "ForceDevice" "ISDV4"# Tablet PC ONLY
EndSection

Section "InputDevice"
    Identifier     "eraser"
    Driver         "wacom"
    Option         "Device" "/dev/input/wacom"
    Option         "Type" "eraser"
    Option         "ForceDevice" "ISDV4"# Tablet PC ONLY
EndSection

Section "InputDevice"
    Identifier     "cursor"
    Driver         "wacom"
    Option         "Device" "/dev/input/wacom"
    Option         "Type" "cursor"
    Option         "ForceDevice" "ISDV4"# Tablet PC ONLY
EndSection

<snip>

Section "ServerLayout"
    Identifier     "Default Layout"
    Screen         "Default Screen"
    InputDevice    "Generic Keyboard"
    InputDevice    "Configured Mouse"

    # Uncomment if you have a wacom tablet
    InputDevice    "stylus" "SendCoreEvents"
    InputDevice    "cursor" "SendCoreEvents"
    InputDevice    "eraser" "SendCoreEvents"
EndSection

The "PressCurve" option doesn't seem to do anything at all; the 'pressure' is a binary on or off just like a mouse click in both GIMP and ArtRage 2 (running under Wine). In GIMP when I try to "Configure Extended Input Devices..." in "Preferences" it tells me "No extended input devices" - could this be part of the problem?

Anyone have any ideas how I can enable pressure sensitivity?

Thanks.
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Re: Wacom Intuos 2 - pressure sensitivity not working

Postby Slocker on Sat Mar 15, 2008 11:28 am

Try configuring the Wacom through this guide:

http://linuxwacom.sourceforge.net/index.php/howto/main
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Re: Wacom Intuos 2 - pressure sensitivity not working

Postby Jernau on Sat Mar 15, 2008 2:59 pm

Thanks for the tip. Unfortunately I didn't find the guide too useful as I'm not really advanced enough to manually compile additions into the kernel or to start fooling around with tcl.h and tk.h.

Oh well, I suppose I just have to hope that pressure sensitivity will automagically start working in Linux Mint 5 :D

Thanks again.
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Re: Wacom Intuos 2 - pressure sensitivity not working

Postby Slocker on Sat Mar 15, 2008 7:09 pm

Sorry for a not accurate information. Do not check the information about compilling modules or something. Just see the part where it tells you how to configure the Wacom. The 'Configure X11' section.
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Re: Wacom Intuos 2 - pressure sensitivity not working

Postby Jernau on Sun Mar 16, 2008 5:43 am

Okay, so I thought I'd give this another try. Following the information from 'The Linux Wacom Project' (thanks again Slocker) I edited my xorg.conf to look like this:
Code: Select all
Section "InputDevice"
    Identifier     "Configured Mouse"
    Driver         "mouse"
    Option         "CorePointer"
    Option         "Device" "/dev/input/mice"
    Option         "Protocol" "ImPS/2"
    Option         "ZAxisMapping" "4 5"
    Option         "Emulate3Buttons" "true"
EndSection

Section "InputDevice"
    Identifier     "stylus"
    Driver         "wacom"
    Option         "Device" "/dev/input/wacom"
    Option         "Type" "stylus"
    Option       "USB" "on"
    Option         "PressCurve" "5,0,100,95"      # Custom preference
    Option         "Threshold" "60"      # sensetivity to do a "click"
EndSection

Section "InputDevice"
    Identifier     "eraser"
    Driver         "wacom"
    Option         "Device" "/dev/input/wacom"
    Option         "Type" "eraser"
    Option       "USB" "on"
EndSection

Section "InputDevice"
    Identifier     "cursor"
    Driver         "wacom"
    Option         "Device" "/dev/input/wacom"
    Option         "Type" "cursor"
    Option       "USB" "on"
EndSection

I removed the "ForceDevice" option as it seems that's just for tablet PCs, and I added the "USB" "on" option as my Intuos 2 is a USB tablet and apparently that is needed. I also updated the "PressCurve" option to 'The Linux Wacom Project' recommendation for 'firm': 5,0,100,95.

Unfortunately my tablet is still functioning as a mouse. I'm not sure if I'm still missing some xorf.conf setting, or if it's some kind of a driver issue - as GIMP reports "No extended input devices" my hunch is that it might be the later.

Additionally, when I follow 'The Linux Wacom Project' instructions to check the pointer status I get the following:
Code: Select all
:~ xsetpointer -l
0: "pointer"    [XPointer]
1: "keyboard"   [XKeyboard]

My "stylus", "eraser" and "cursor" are not listed as "XExtensionDevices" as they should be - surely this is connected to why GIMP can't see my tablet?

Any ideas?
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