I noticed that just enabling xinerama causes a segmentation fault. As mentioned in the wiki, I enabled NoTrapSignals. xorg.conf and associated log is attached, the very same configuration without xinerama works fine. The crash is very easily reproducable on my laptop, if you need any more information, just ask.
$ lsb_release -rd
Description: Ubuntu hardy (development branch)
Release: 8.04
$ apt-cache policy xorg
xorg:
Installed: 1:7.3+10ubuntu7
Candidate: 1:7.3+10ubuntu7
Version table:
*** 1:7.3+10ubuntu7 0
700 http://de.archive.ubuntu.com hardy/main Packages
100 /var/lib/dpkg/status
1:7.2-5 0
650 http://ftp.de.debian.org testing/main Packages
$ apt-cache policy xserver-xorg-video-intel
xserver-xorg-video-intel:
Installed: 2:2.2.1-1ubuntu6
Candidate: 2:2.2.1-1ubuntu6
Version table:
*** 2:2.2.1-1ubuntu6 0
700 http://de.archive.ubuntu.com hardy/main Packages
100 /var/lib/dpkg/status
2:2.1.0-2 0
650 http://ftp.de.debian.org testing/main Packages
$ apt-cache policy xserver-xorg-video-i810
xserver-xorg-video-i810:
Installed: 2:1.7.4-0ubuntu7
Candidate: 2:1.7.4-0ubuntu7
Version table:
2:2.1.0-2 0
650 http://ftp.de.debian.org testing/main Packages
*** 2:1.7.4-0ubuntu7 0
700 http://de.archive.ubuntu.com hardy/main Packages
100 /var/lib/dpkg/status
ProblemType: Crash
Architecture: amd64
Date: Fri Apr 4 19:44:29 2008
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/bin/Xorg
Package: xserver-xorg-core 2:1.4.1~git20080131-1ubuntu6 [modified: usr/bin/Xorg usr/bin/cvt usr/bin/gtf]
PackageArchitecture: amd64
ProcCmdline: X :1 -config xinerama.xorg.conf
ProcEnviron:
SHELL=/bin/bash
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
LANG=en_US.UTF-8
Signal: 11
SourcePackage: xorg-server
StacktraceTop:
xf86RandR12SetRotations (
xf86CrtcScreenInit (screen=0xa20730)
?? ()
AddScreen (pfnInit=0x7f9a08aa79f0, argc=4,
InitOutput (pScreenInfo=0x7f1d20, argc=4,
Title: Xorg crashed with SIGSEGV in xf86RandR12SetRotations()
Uname: Linux 2.6.24-14-generic x86_64
UserGroups:
StacktraceTop: xf86RandR12SetR otations ( 0x7f9a08aa79f0 <I830ScreenInit>, 0x7f1d20, argc=4,
xf86CrtcScreenInit (screen=0xa20730)
I830ScreenInit (scrnIndex=0, pScreen=0xa20730,
AddScreen (pfnInit=
InitOutput (pScreenInfo=