@pureblood
is it a sandy or ivy-bridge you using ? Workaround you described
described helped me on 11.10 with sandy-bridge CPUs.
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https://bugs.launchpad.net/bugs/993187
Title:
ubuntu
Can't confirm!! 3.2.0-27 from precise-proposed does NOT fix all Freezes
!!
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Title:
[IVB]12.04 64 bit System freezes (mouse, keyboard)
To manage
@exactt (giesbert)
yes sounds like this bug - although i do not experience segfaults with
compiz.
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Title:
[Sandybridge] Spurious *ERROR*
Confirmed! This bug (blt ring idle) seems to be fixed on 2.6.38-11.
There are still issues and other GPU hungs though - after 2 seconds of
playing sauerbraten in full-screen:
[ 54.562391] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed...
GPU hung
[ 54.563417]
@Avi Romanoff
you can put this option in /etc/default/grub to make the change permanent
replace following line:
GRUB_CMDLINE_LINUX_DEFAULT=quiet splash
by
GRUB_CMDLINE_LINUX_DEFAULT=quiet splash i915.semaphores=1
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@AceLan Kao
I think I found the i915 patch, which would fix this bug (along with a
lot of other documented i915 fixes):
from (http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.39-rc1)
commit 36d527deadf7d0c302e3452dde39465e74a65a08
Author: Chris Wilson ch...@chris-wilson.co.uk
Ok forget the post above. Seems to have nothing to do with this bug.
On Kernel 2.8.38: /sys/module/i915/parameters/semaphores is set to 0
On Kernel 2.8.39: /sys/module/i915/parameters/semaphores is set to 1
if i do the following:
sudo -i
echo 1 /sys/module/i915/parameters/semaphores
The Bug
Thx for the new Kernel AceLan!
I tested the x86_64 version on two different Boards. It got a little better I
think - bug happens not that frequently imho.
But still, if I e.g. press alt-f2 in Unity and start typing I still get lags
and dmesg shows:
[ 85.166147]
** Changed in: linux (Ubuntu)
Status: New = Confirmed
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Title:
[Sandybridge] Spurious *ERROR* Hangcheck timer elapsed... blt ring
idle
*** This bug is a duplicate of bug 761065 ***
https://bugs.launchpad.net/bugs/761065
** This bug has been marked a duplicate of bug 761065
[Sandybridge] Spurious *ERROR* Hangcheck timer elapsed... blt ring idle
messages in dmesg when using compiz
* You can subscribe to bug 761065 by
Seems there is yet another duplicate of this bug:
https://bugs.launchpad.net/ubuntu/+bug/753189
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Title:
[Sandybridge] Spurious *ERROR* Hangcheck
It's not just Google Earth ... :
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
intel/+bug/761065
kernel: [ 329.203437] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck
timer elapsed... blt ring idle [waiting on 23327, at 23327], missed IRQ?
happens also with other opengl apps and
Also seems to affect Fedora 14 Kernel 2.6.38:
https://bugzilla.redhat.com/show_bug.cgi?id=684097
** Bug watch added: Red Hat Bugzilla #684097
https://bugzilla.redhat.com/show_bug.cgi?id=684097
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Have also tested this on a ASRock H67M-ITX with i3-2100T and i5-2500T.
Exact same symptom. I'm pretty sure now all Sandy Bridge internal GPUs
are affected, at least with H67 chipset. This looks serious to me as
almost all new PCs are sold with Sandy Bridge. Using development
Kernel 2.6.39 isn't a
I have exact same bug on my sandybridge machine. i7-2600S on Zotac
H67-ITX. Kernel: 2.6.38-8-generic x86_64
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Title:
[Sandybridge] Spurious
Isn't this one duplicate to #762855 ?
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Title:
[Sandybridge] Spurious *ERROR* Hangcheck timer elapsed... blt ring
idle messages in dmesg when
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