System freezes during stop of X-Server

Bug #367263 reported by robs on 2009-04-26
Affects Status Importance Assigned to Milestone
xserver-xorg-video-intel (Ubuntu)

Bug Description

Binary package hint: xserver-xorg-video-intel


I am using mythbuntu, and updated the system from 8.10 -> 9.04. Everything works (more or less) fine, but I still have a problem with the graphics. If I want to shutdown/reboot, all programms terminate, the screen gets black, but the system does not shutdown/reboot, and the system is not longer reacting (console, ssh, ping). It´s a classical freeze.

The same happens if I want to restart the X-server by sudo /etc/init.d/gdm restart.

After reeding the release notes of 9.04, there are some hints about problems with intel graphics. So I added 'Option "DRM" "OFF"' to xorg.conf, and the problem was gone.

The switched off DRM option has no real pain for me, because I use the computer only as a mythtv backend and fronted, so high performance graphics are not so importand.

lspci of VGA-controller:
00:02.0 VGA compatible controller: Intel Corporation 82946GZ/GL Integrated Graphics Controller (rev 02)
        Subsystem: ASUSTeK Computer Inc. Device 81ea
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 10
        Region 0: Memory at fe900000 (32-bit, non-prefetchable) [size=1M]
        Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Region 4: I/O ports at dc00 [size=8]
        Capabilities: [90] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable-
                Address: 00000000 Data: 0000
        Capabilities: [d0] Power Management version 2
                Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

System: Asus Nova P20

If you need any further informations, please let me know.



ProblemType: Bug
Architecture: amd64
DistroRelease: Ubuntu 9.04
Package: xserver-xorg-video-intel 2:2.6.3-0ubuntu9
ProcVersion: Linux version 2.6.28-11-generic (buildd@crested) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #42-Ubuntu SMP Fri Apr 17 01:58:03 UTC 2009
SourcePackage: xserver-xorg-video-intel
Uname: Linux 2.6.28-11-generic x86_64

robs (robert-goldner) wrote :
Bryce Harrington (bryce) on 2009-04-28
Changed in xserver-xorg-video-intel (Ubuntu):
status: New → Confirmed
Bryce Harrington (bryce) on 2009-05-06
tags: added: freeze
Bryce Harrington (bryce) wrote :

[This is an automatic notification.]

A new major version of the -intel driver is now available in Karmic.

This version includes a major reworking of the acceleration
architecture, which resolves a huge number of issues. We do not know
whether it resolves the issue you reported.

Would you mind testing Karmic Alpha-2 and seeing if it is still a
problem? CD ISO images are available here:

If the issue can still be reproduced on karmic, please report here with
your findings, and attach a fresh Xorg.0.log from your test, and we will
be able to forward the bug upstream.

Otherwise, if the bug no longer exists in Karmic, let us know that as

In the off chance you encounter different bugs while attempting to test
Karmic, please report those as new bug reports.

Changed in xserver-xorg-video-intel (Ubuntu):
status: Confirmed → New
status: New → Incomplete
robs (robert-goldner) wrote :


I tested Karmic (alpha 2), and it has a kernel panic after the grub bootloader. I'm sorry, but I found no useable way to get some useful information.

So I updated my 9.04 to kernel 2.6.30 and also the xserver-xorg-video-intel to
and everything is working well (including KernelModesetting). I used the way descriped in:
Also the DVI-output works now fine.

I think this topic can be closed. I think the kernel panic in Karmic alpha 2 has nothing to do with the intel driver, and 9.04 is working very well now with the updated kernel and video-driver.

Thanks a lot


Bryce Harrington (bryce) wrote :

Excellent, thanks for letting us know the original issue is resolved.

Changed in xserver-xorg-video-intel (Ubuntu):
status: Incomplete → Fix Released
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