This bug was fixed in the package xorg-server - 2:1.13.0-0ubuntu6.5
---------------
xorg-server (2:1.13.0-0ubuntu6.5) quantal-proposed; urgency=low
[ Maarten Lankhorst ]
* add patch to fix starting xorg-server with no outputs connected (LP:
#1122072)
- fixup-headless.patch
[ Shih-Yuan Lee ]
* Add 238-fix-erratic-cursor-movement.patch to fix erratic cursor movement
when using cursor movement when using "Coordinate Transformation Matrix".
(LP: #1212123)
[ Timo Aaltonen ]
* Fix patch 500 to apply.
* dix-fix-zaphod-screen-crossing.diff: Fix pointer screen crossing. (LP:
#1068920)
-- Maarten Lankhorst <[email protected]> Tue, 12 Feb 2013
15:18:32 +0100
** Changed in: xorg-server (Ubuntu Quantal)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1212123
Title:
Erratic cursor movement when using "Coordinate Transformation Matrix"
Status in “xorg-server” package in Ubuntu:
Fix Released
Status in “xorg-server-lts-quantal” package in Ubuntu:
Invalid
Status in “xorg-server-lts-quantal” source package in Precise:
Fix Released
Status in “xorg-server” source package in Quantal:
Fix Released
Bug description:
[Impact]
coordinate mapping is off when using a transformation matrix, needs an
upstream patch to fix
[Test case]
1. Boot into Ubuntu 12.04.2 live system
2. Expand the laptop display to the external one.
For example, `xrandr --output eDP1 --auto --output HDMI1 --auto --right-of
eDP1`
3. Restrict the movements of the touchscreen to the laptop display.
For example, `xinput map-to-crtc 'ELAN Touchscreen' eDP1`
P.S. `xinput map-to-crtc` will calculate and set "Coordinate
Transformation Matrix" correspondingly.
= Expected Result =
I can operate the touchscreen on the laptop display as usual.
= Actual Result =
It becomes abnormal and shows erratic cursor movement.
P.S. Ubuntu 13.04 is OK.
[Regression potential]
slim, this has been upstream since 1.13.2
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