** Changed in: xorg-server-lts-quantal (Ubuntu)
Status: New => Invalid
** Changed in: xorg-server (Ubuntu Quantal)
Status: New => In Progress
** Changed in: xorg-server-lts-quantal (Ubuntu Precise)
Status: New => In Progress
** Description changed:
- = Affected Packages =
+ [Impact]
- xserver-xorg-core-lts-quantal 2:1.13.0-0ubuntu6.1~precise2 in precise
- xserver-xorg-core-lts-quantal 2:1.13.0-0ubuntu6.1~precise3 in precise
+ coordinate mapping is off when using a transformation matrix, needs an
+ upstream patch to fix
- = Reproduce Steps =
+ [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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which is subscribed to xorg-server-lts-quantal in Ubuntu.
https://bugs.launchpad.net/bugs/1212123
Title:
Erratic cursor movement when using "Coordinate Transformation Matrix"
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https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1212123/+subscriptions
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