This bug was fixed in the package xorg-server - 2:1.10.0-0ubuntu3
---
xorg-server (2:1.10.0-0ubuntu3) natty; urgency=low
[ Bryce Harrington ]
* patches/111_armel-drv-fallbacks.patch: Always fallback to -fbdev,
not just when no other X driver matches. (Thanks jcristau)
[
Upstream has accepted the patches for the fix, and I've added the
patches to the ubuntu xserver packaging tree for inclusion in the next
upload.
** Changed in: xorg-server (Ubuntu)
Status: In Progress = Fix Committed
** Changed in: xorg-server (Ubuntu)
Milestone: ubuntu-11.04 =
Timo,
I have uploaded a new xorg-server package to the utouch-team/unstable
ppa (version 1.10.0-0ubuntu3~utouch1). I have verified that it fixes
xournal usage when playing back the attached recording.
I'm going to unlink the upstream Xournal bug because it is really about
a different issue. You
** Tags added: patch
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https://bugs.launchpad.net/bugs/736500
Title:
very jumpy cursor with wacom-dkms
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I can reproduce this problem on a fresh daily live-usb with only xournal
and ppa:utouch-team/unstable as extra software. I uninstalled xserver-
xorg-input-wacom to make the evdev driver take over.
I can reproduce it both with my tablet's built-in wacom, and with my
girlfriend's Bamboo PenTouch. I
This trivial patch to xournal is a workaround. The surrounding code (a
function called 'fix_xinput_coordinates') suggests that this bug has
existed (in xinput? gdk?) for some time already. It just manifests
itself slightly differently with these new packages, which makes
Xournal's workaround fail.
** Bug watch added: SourceForge.net Tracker #3244118
http://sourceforge.net/support/tracker.php?aid=3244118
** Also affects: xournal via
http://sourceforge.net/support/tracker.php?aid=3244118
Importance: Unknown
Status: Unknown
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Timo,
For some reason, I can now reproduce the bug. What I have verified is
that the XInput 1.x events look to be generated properly. However, they
are likely only now being sent without all the valuators set in every
input event. This is a change in the X server 1.10. The protocol has
always
Chase: thanks for looking into this again. I also had to explicitely
configure the Wacom device in the Gimp. One would also do so in a real
use case, for the pressure sensitivity.
Your guess about where the bug could be sounds reasonable. Let me know
if there is anything I can help you with.
--
After reviewing code some more, I believe the issue lies in the X
server. With the addition of masked valuators, you could have an event
that has an X and Pressure value changes, but not a Y value change. The
following is the axis mapping:
0: X
1: Y
2: Pressure
In XI 1.x, the protocol sends a
There are a few things that I could imagine cause this behavior in
natty, but like Henrik I can't reproduce this bug either.
You wouldn't happen to be running any other gesture or input-related
programs like easystroke, would you?
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Chase: I'm running cellwriter. I will try to disable it and see what
happens.
My girlfriend has a different Wacom tablet, so I will see if I can
reproduce this with her hardware, too. I will also try a live-usb
(+utouch ppas). I'll post my results here when I've gotten round to it.
One more
Here's an xinput test recording. What strikes me as odd is that there
are motion events with only an a[0] coordinate, and no a[1] coordinate.
This seems related.
As far as I can interpret the wacom-pen2.record, it also seems odd that
an x-axis event is not always followed by a y-axis event, like
The evdev protocol only sends changes, so this is perfectly normal.
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https://bugs.launchpad.net/bugs/736500
Title:
very jumpy cursor with wacom-dkms
Hendrik, do you have any ideas as to where the problem may be? I can
imagine that the problem is over for you when it is not in evdev, but
for me it is not!:-)
As far as I can tell now, gdk_event_get_coords() returns garbage y
coordinates exactly when these events occur. Some layer between
The name is Henrik.
The fact that the problem does not show up in the a different desktop
setting means the problem seems to be related to something else,
possibly simpler to fix. That is good news. I would recommend trying the
next level now, X. Try logging into a safe mode session and see if
Sorry Henrik for my miss-spelling your name. Thanks for your help, I'll
see what I can find out and report the bug elsewhere if needed.
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The recording does not seem to exhibit the irregularities you mentioned.
Perhaps it did not occur during this particular recording?
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Thanks for having a look. I found out how to 'play' the recording. The
old recording indeed doesn't show the weird behaviour, but the attached
version does.
** Attachment added: wacom-pen2.record
https://bugs.launchpad.net/utouch/+bug/736500/+attachment/1930224/+files/wacom-pen2.record
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Just one more comment: at first I thought that it could be due to
Xournal, because it has some weird event handling trying to work around
xinput shortcomings. But I can also reproduce in the Gimp.
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The wacom-pen2.record file seems fine here, and looking through the
file, there is nothing special happening with the y axis (grep for 0003
0001 in the file). In other words, this might still be due to some
other fu in your system.
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** Changed in: xserver-xorg-input-evdev (Ubuntu)
Status: Incomplete = Triaged
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https://bugs.launchpad.net/bugs/736500
Title:
very jumpy cursor with
Here's the requested evemu properties and recording.
** Attachment added: wacom-pen.prop
https://bugs.launchpad.net/utouch/+bug/736500/+attachment/1921144/+files/wacom-pen.prop
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** Attachment added: wacom-pen.record
https://bugs.launchpad.net/utouch/+bug/736500/+attachment/1921145/+files/wacom-pen.record
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The log file verifies that the X evdev input module is being used.
Timo, please follow these directions to generate a recording of your
tablet: https://wiki.ubuntu.com/Multitouch/Testing/uTouchEvEmu#Debugging
Thanks!
** Changed in: utouch
Status: New = Invalid
** Also affects:
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