** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Fix Committed = Fix Released
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Title:
Lenovo
This bug was fixed in the package linux - 3.8.0-13.23
---
linux (3.8.0-13.23) raring; urgency=low
[ Upstream Kernel Changes ]
* Revert drm/i915: enable irqs earlier when resuming
- LP: #1156310
* Revert drm/i915: reorder setup sequence to have irqs for output setup
-
** Changed in: linux (Ubuntu)
Status: In Progress = Fix Committed
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Title:
Lenovo T400: With external
** Changed in: linux (Ubuntu)
Status: Fix Committed = In Progress
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Timo Aaltonen (tjaalton)
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This seems to be fixed with the drm-intel-nightly kernel! Thanks!
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Title:
Lenovo T400: With external monitor
I don't think so, maybe I can get one of the Ubuntu guys to chase up...
For the time being, you can find a kernel packaged here
http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/current/
with the fixes.
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Sorry, I was occupied the last weeks. Has this gone into raring-
proposed? What exactly do I have to install to test it?
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** Changed in: compiz (Ubuntu)
Status: Confirmed = Invalid
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Confirmed = Fix Committed
** Changed in: linux (Ubuntu)
Status: Confirmed = Fix Committed
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Ok, the patch has landed:
commit 21ad833075801a7cd81b5ef1604ffc6c600e5ff9
Author: Ville Syrjälä ville.syrj...@linux.intel.com
Date: Tue Feb 19 15:16:39 2013 +0200
drm/i915: Fix races in gen4 page flip interrupt handling
Can you please try drm-intel-experimental (from the mainline ppa)
I think the fixed version of https://patchwork.kernel.org/patch/2159201/
will be interesting to test for this case.
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I think SwapbuffersWait fixes it for me as well. So far it has not
crashed for a day of light usage... What can we do to narrow down the
problem?
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That confirms that pageflipping is the direct cause of the hangs. Very
recently suspicion has been raised that the gen4 pageflipping irq
handling may be racy - which would help explain why all the reports of
this hang I've seen so far have been gen4.
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Chris, so far disabling SwapbuffersWait fix it for me.
Also, I have a really old monitor could it be the cause of the crash?
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I have now tested 3.5.0-22-generic for the whole evening and it has not
crashed so far. Thus I expect the kernel to be involved in this issue.
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
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Another test you can try is with the 3.8 kernel is:
Option SwapbuffersWait false
which will disable pageflipping (as well as disabling vsync) altogether.
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Wow. Thanks for testing that, that rules out an easy workaround and
leaves me a little more puzzled. Yet another pageflip race in the kernel
still seems the most likely explanation.
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What can I do to confirm or rule out such a page flip bug? There is
nothing in dmesg...
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Title:
Lenovo T400:
Might this be realted to bug #1097315? I got the updated kernel 20
minutes ago and so far my system has not become unaccessible
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Ok, this is just an improvement but no fix. The bug occured after 15
minutes of heavy usage.
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Title:
Lenovo
Testing with kernel 3.5.0-22-generic now, will report back later
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Title:
Lenovo T400: With external monitor the
One thing you can try is building the driver from git with debugging
enabled:
$ apt-get build-dep xserver-xorg-video-intel
$ git clone git://anongit.freedesktop.org/xorg/driver/xf86-video-intel
$ cd xf86-video-intel
$ ./autogen.sh --prefix=/usr --with-default-accel=sna --enable-debug
$ make sudo
** Attachment added: x log with sna assertions
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1116587/+attachment/3527227/+files/Xorg.0.log
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INstalled the driver. It crashed after a minute. However, nothing in the
logs as far as I can see.
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Title:
the info will be in /var/log/lightdm/x-0.log if you can attach that
Felix
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Title:
Lenovo T400: With external
When it crashes, switch to a vt, sudo cp /var/log/lightdm/x-0.log{,.bak}
so it doesn't get overwritten, and attach /var/log/lightdm/x-0.log.bak
please :)
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A simple thing to test would be
echo /etc/X11/xorg.conf.d/intel.conf EOF
Section Device
Identifier Device0
Driver intel
Option TripleBuffer false
EndSection
EOF
and see if the hangs still occur.
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Chris, I've tried your previous configuration and X frooze right when I started
chromium.
Usally it take like 3-4 hours.
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Scrolling http://planet.gnome.org/ as fast as I can -- I have a logitech
mouse with wheel with no friction.
The system crashes within 45 seconds when disabling the TrippleBuffer
for me.
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Ok after continued testing, I come to the conclusion that the EXA SNA
difference does not make any difference here.
I had my system running on EXA crash 4 times in the last 30 minutes. But
there is nothing in /sys/kernel/debug/dri/0/i915_error_state not
/var/log/Xorg.0.log.
Any help?
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I'm not seeing any errors in the logs, can you attach ~/.xsession-errors
after reproducing it in case it gives some info on why compiz hung?
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some notes from irc, thanks for that!
bryce fm, you're right - nothing in your Xorg.0.log or dmesg. And if there's
no i915_error_state file then it's sounding like it's not just a GPU lockup
or xserver crash
bryce even possible it's not X locking up
bryce fm, check .xsession-errors,
It again took just a few minutes to crash the system.
# sudo service lightdm restart
allows me to log in again.
.xsession errors does not contain anything relevant.
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I have the same bug on a lenovo X61 with lastest raring updates:
00:02.0 VGA compatible controller: Intel Corporation 82G965 Integrated
Graphics Controller
I can also restart lightdm from vt and I've tried with older kernels (like
linux-image-3.5.0-21-generic) but no luck.
It crash every 1-3
I'm also working a on an external monitor.
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Title:
Lenovo T400: With external monitor the system is rarely
One information that might help anybody affected. Just using the
external monitor solves the issue for me.
My external is 1680x1050 while the internal one is 1280x800.
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Comment #4 seems to be influenced by other factors. After using the
system for an hour with EXA instead of SNA I suspect SNA to be the
issue.
Where should I continue with this?
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: compiz (Ubuntu)
Status: New = Confirmed
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: New = Confirmed
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** Tags added: dual-head
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Title:
Lenovo T400: With external monitor the system is rarely working for
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