Xorg crashed with SIGABRT in raise()

[filip]

this happens on full up to date saucy.
if i booted i ended up with just a blinking cursor.
I had to switch to vt1, log on and restart lightdm.
Than i was able to login and i got this to report the bug.

I also got problems when i leave the pc alone and the screen blanks. Than i get only a mousepointer when i move the mouse.
if i switch to another VT and than VT7 i instantly see the desktop but it disapears.

I must note that i use a xrandr script to get a higher resolution than my screen actualy is but with raring i had no
problems with it.

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: xserver-xorg-core 2:1.13.3-0ubuntu13
ProcVersionSignature: Ubuntu 3.10.0-2.9-generic 3.10.0
Uname: Linux 3.10.0-2-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.10.2-0ubuntu3
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CrashCounter: 1
CurrentDmesg: [ 24.613816] init: plymouth-stop pre-start process (1646) terminated with status 1
Date: Tue Jul 2 21:11:46 2013
DistUpgraded: Fresh install
DistroCodename: saucy
DistroVariant: ubuntu
ExecutablePath: /usr/bin/Xorg
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03) (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Device [103c:30a2]
   Subsystem: Hewlett-Packard Company Device [103c:30a2]
MachineType: Hewlett-Packard HP Compaq nx7400 (RH399EA#UUG)
MarkForUpload: True
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdline: /usr/bin/X -core :1 -auth /var/run/lightdm/root/:1 -nolisten tcp vt7 -novtswitch
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.10.0-2-generic root=UUID=f63e812d-79a7-496a-83c0-8c23dfadfdd3 ro quiet splash vt.handoff=7
Signal: 6
SourcePackage: xorg-server
StacktraceTop:
 raise () from /lib/x86_64-linux-gnu/libc.so.6
 abort () from /lib/x86_64-linux-gnu/libc.so.6
 OsAbort ()
 ?? ()
 FatalError ()
Title: Xorg crashed with SIGABRT in raise()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

dmi.bios.date: 08/27/2008
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68YGU Ver. F.0E
dmi.board.name: 30A2
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 40.17
dmi.chassis.asset.tag: CNU6421VZN
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68YGUVer.F.0E:bd08/27/2008:svnHewlett-Packard:pnHPCompaqnx7400(RH399EA#UUG):pvrF.0E:rvnHewlett-Packard:rn30A2:rvrKBCVersion40.17:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP Compaq nx7400 (RH399EA#UUG)
dmi.product.version: F.0E
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.9~daily13.04.18.1~13.04-0ubuntu2
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.45-2ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.4-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.4-0ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu13
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.9-0ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.8-0ubuntu1
xserver.bootTime: Tue Jul 2 21:15:30 2013
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.13.3-0ubuntu13
xserver.video_driver: intel

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1188123, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.

[Chris Wilson (ickle)]

The logs did not capture the error, do you mind tracking down one with a stack trace? Search /var/log/Xorg*

Can you give the xrandr commands you use, for it looks like you have just resized the panning area rather than change the resolution on the display? I am not sure that is what you want. Perhaps an Xorg.log/xrandr from raring might help explain what you want.

Signal 6 is SIGBUS, indicative of a GPU hang. That it results in a crash is fixed in current kernels, but the root cause is that something hung your gpu. There should be a /sys/kernel/debug/dri/0/i915_error_state containing the debug details.

[filip (bandit-s-fw)]

With recent updates i think the gpu doesn't hang anymore.
checked the i915_error_state, no error state collected

But however when the laptop is idle and screens blanks i still can't get my screen back.
I can see my desktop for a fraction of a second when i swith VT after that i only get a black screen and my mouse pointer (which i can move).
I have fiddled with my setup of my custom xrandr script but nothing helps.
What i did is in lightdm.conf
i use display-setup-script=/usr/share/test.sh
and session-setup-script=/usr/share/test.sh

and my test.sh contains the following:
#!/bin/sh
export DISPLAY=:0
xrandr --output LVDS1 --mode 1280x800 --scale 1.5x1.5
xrandr --output LVDS1 --mode 1280x800 --scale 1.5x1.5 --panning 1920x1200 --pos 0x0 --rotate normal --output TV1 --off --output VGA1 --off

i have to issue the xrandr twice. The first time it scales the screen but there is right and under a black border. Also i need to add the panning otherwise i can't get with the pointer to the right bottom off the screen (even after issuing the same command without the panning i can't get there.) its get stuck in the corner in the corner of the border of the first scale action.

i use the script to get a higher resolution of my screen than it actually is. normaly it is 1280x800 but i find that the icons etc are to large.

if i kill compiz i get my screen back also with setsid unity i get my screen back. however some things are missing like the icons in the left corner. But maybe thats normal.
If i restart lightdm i get my session back like normal. Now this always works as opposed to when i first reported the bug. Probably due to the gpu hang that is resolved.