Ubuntu
gtk+2.0 package

GTK+ / WACOM / XINERAMA: Incorrect offset makes Wacom unusable

Bug #479810 reported by Troy James Sobotka on 2009-11-10

This bug affects 3 people

Affects		Status	Importance	Assigned to	Milestone
	GTK+	Expired	Medium	gnome-bugs #66813
	gtk+2.0 (Ubuntu)	Triaged	Low	Unassigned

Bug Description

Summary: A well known and understood bug that has yet to be fixed upstream. When using GTK with Xinerama and mapping the Wacom tablet to a single screen, all Wacom devices suffer from incorrect offsets between the cursor and the Wacom level input device. In short, while the Wacom device correctly uses the entire single screen desktop region, the underlying GTK insists that the tablet is still halved (or whatever screen to tablet ratio) between the two monitors.

Platform: Ubuntu 9.10 amd64

Frequency: Always ( 5 trials for 5 manifestations )

Relevant Links:
* Solution link: http://www.reconbyfire.net/reports/?page_id=79
* Bugzilla link: https://bugzilla.gnome.org/show_bug.cgi?id=66813
* Linux Wacom Tablet project: http://sourceforge.net/projects/linuxwacom/forums/forum/236872/topic/1916305
* Original Patch(?): http://<email address hidden>/msg16605.html

ProblemType: Bug
Architecture: amd64
Date: Mon Nov 9 22:58:07 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: fglrx
Package: libgtk2.0-0 2.18.3-1
ProcEnviron:
LANG=en_CA.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: gtk+2.0
Uname: Linux 2.6.31-14-generic x86_64

Tags:

Revision history for this message

Troy James Sobotka (troy-sobotka) wrote on 2009-11-10:

Dependencies.txt Edit (2.4 KiB, text/plain; charset="utf-8")
XsessionErrors.txt Edit (1.8 KiB, text/plain; charset="utf-8")

Revision history for this message

Troy James Sobotka (troy-sobotka) wrote on 2009-11-10:

Patch that repairs well known existing bug in GTK+ Edit (1.2 KiB, text/plain)

Troy James Sobotka (troy-sobotka) on 2009-11-10

tags:

added: gtk wacom xinerama

Sebastien Bacher (seb128) on 2009-11-10

Changed in gtk+2.0 (Ubuntu):
assignee:	nobody → Ubuntu Desktop Bugs (desktop-bugs)
importance:	Undecided → Low
status:	New → Triaged

Revision history for this message

Troy James Sobotka (troy-sobotka) wrote on 2009-11-21:

Seeing as to how long and well known this bug is and that a patch is available, is it not possible to get this issue fixed?

Revision history for this message

Sebastien Bacher (seb128) wrote on 2009-12-17:

Could you try to get upstream review maybe by pinging on the bug or mailing their list?
We try to limit gtk change in the distribution while they are not accepted upstream usually

Revision history for this message

Troy James Sobotka (troy-sobotka) wrote on 2009-12-21:

I've tried. Glacial movement.

I'm willing to test any patches you can provide, assuming I can have a non-intrusive method of testing them. A PPA package would be best.

Unfortunately, as I was trying out the patch, I wasn't able to get back to my original GTK. There are some cyclic included files in /usr/share/themes etc.

Bug Watch Updater (bug-watch-updater) on 2010-09-16