HOW TO: Install a LinuxWacom Kernel Driver for Tablet PC's

[Favux]

Hi sanette,

I guess the .fdi version (in the stylus section) would be:

<merge key="input.x11_options.Speed" type="string">Rspeed</merge>

and the default value:

<merge key="input.x11_options.Speed" type="string">1.0</merge>

and then try varying Rspeed like the HOW TO says.

[sanette]

ah, another experiment: I have tried the i386 version of ubuntu karmic beta (live CD): and the problem disappears !

(the version I have installed is amd64)

so maybe it is related to the 64bit version of the wacom driver ??

[sanette]

Hi favux

I have tried the .fdi version too, the change is well recorded in /var/log/Xorg.0.log, but it has no effect.

In fact, reading the how-to you pointed to me, it is normal that is has no effect: it is supposed to act on the relative speed only, whereas my stylus is (naturally) in absolute mode.

[gali98]

I am on 64bit, and there isn't a bad cursor lag (a little but not anymore than normal....)
However I have a usb tablet pc, not serial.
You could try compiling the newest version, but you would have to user the xorg.conf method with it. For some reason, the fdi method doesn't work with a compiled release very well.
Kory

[Favux]

Hi sanette,

I was hoping you could tell me if it changed the speed. To get it into relative mode from the default 'Absolute' you'd use:

<merge key="input.x11_options.Mode" type="string">Relative</merge>

It looks like something may be messed up with serial tablet pc's in Karmic. Some Fujitsu serial tablet pc's are not even seeing their stylus, just the eraser: http://ubuntuforums.org/showthread.p...hlight=fujitsu And the bug report: https://bugs.edge.launchpad.net/ubun...ls/+bug/383181

Since we know it doesn't affect your usb Intuos4 I think we're safe in saying it's serial related. What I don't know, too many possibilities. As you can see I looked at his Karmic linuxwacom.fdi and nothing jumped out at me.

Since the release candidate just came out you could see if the problem is still there. If it is we can take a look at your Xorg.0.log. And I think you should file a bug report too and link his. It's awfully late to be filing a bug report and expecting a fix. Let's hope it is already fixed in the release candidate.

I don't understand why it would have anything to do with 64-bit. Unless it's a build problem/mistake in the 64-bit with something in the serial chain.

[sanette]

Hi Favux

I have tried to change speed in relative mode. It "works", but this is really something different, and of course I don't want to use my tablet in relative mode.
What changing speed does is simply changing the amount of distance the cursor moves with respect to the distance you move the pen. Setting speed 0.1 makes the cursor only move few pixels when you do a large motion with the pen, and conversely setting 2.0 makes the cursor jump like crazy when you move your pen very little.
So it's difficult to test whethen the lag issue persits, but I would say yes: even in relative mode, the cursor motion seems to react to the pen motion only after a certain delay.

I'll go try the karmic RC.

[sanette]

Hi gali

I did compile 0.8.4-3, and replaced wacom_drv, and nothing changes.
I tried also 0.8.5 but I was unable to have it work at all. After restarting hal/xorg, the stylus was not recognized (I admit I didn't inquire much after that)

[sanette]

well too bad, no succees with the release candidate.

Again, it works well with the i368 version, but not with the amd64 version.

[Favux]

Hi sanette,

That's too bad. Since it works for the 32-bit the simplest explanation is that there is something wrong with the Ubuntu build of the 64-bit serial part of the linuxwacom packages. I think you need to open a bug on this. You don't seem to be the only person affected. I'd also open a thread in the Karmic forum and maybe link the thread I mentioned earlier.

[sanette]

ok, I've just filed a bug.*
In the meantime I will probably switch to 32bit ubuntu. Too bad!