[Xinerama] Mouse jumps to wrong monitor during Mouselook in games

[CoolAcid]

When using multiple monitors with Xinerama where a monitor exists above the main monitor an issue arises using mouse look in games. This happens in both native OpenGL (Stream) or Wine Games (World of Warcraft).

The game is running on the main monitor which is below a second monitor. When mouse looking in game, the character will look up when ever using mouselook. For a brief moment the mouse cursor will appear in the center of the upper monitor.

My *guess* would be that the game requests the centering of the mouse cursor, since there is a monitor above the main monitor, it centers it in this view and xorg/xinerama does not take into account the extra pixels to the main monitor.

Description: Ubuntu 12.10
Release: 12.10

xorg:
  Installed: 1:7.7+1ubuntu4
  Candidate: 1:7.7+1ubuntu4

Proprietary Driver: amd-driver-installer-catalyst-13.1-linux-x86.x86_64
---
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
DistroRelease: Ubuntu 12.10
InstallationDate: Installed on 2012-04-13 (338 days ago)
InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MarkForUpload: True
NonfreeKernelModules: fglrx
Package: xorg 1:7.7+1ubuntu4
PackageArchitecture: amd64
ProcEnviron:
 LANGUAGE=en_CA:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
Tags: quantal
Uname: Linux 3.5.0-18-generic x86_64
UpgradeStatus: Upgraded to quantal on 2012-11-09 (128 days ago)
UserGroups: lp lpadmin

[CoolAcid (jakendall-q)]

I should note, I created a new install of kubuntu 11.10, same AMD driver and same Xorg.conf file and did not experience the issue.

[CoolAcid (jakendall-q)]

apport information

[CoolAcid (jakendall-q)]

This is not a fglrx issue - I downgraded to 10.10 and installed the same AMD drivers. Issues went away.