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[Bug 1213022] [NEW] Detected a hung GPU, disabling acceleration.

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Launchpad Bug Tracker <1213022@xxxxxxxxxxxxxxxxxx>
Date: Fri, 16 Aug 2013 11:48:40 -0000
Reply-to: Bug 1213022 <1213022@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

You have been subscribed to a public bug:

Kubuntu 13.04
Thinkpad T520
Bios: automatic (i.e. detect support for descrete graphics, though does not seem to detect anything)

$uname -a
Linux fk1304 3.8.0-27-generic #40-Ubuntu SMP Tue Jul 9 00:17:05 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

Screen will regularly (typically 1-3 times a day) freeze for a few
moments, then the acceleration is disabled.

I have seen this happen in different situations:

When switching between folders in dolphin
When scrolling in FF
When switching between desktops (I use kwin set up with a 9 desktops grid, no Compiz)
When running a java app and a vmware virtual machine

I have not found a certain way to make this happen, though it seems to
be related to spikes of heavy activity.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: xorg 1:7.7+1ubuntu4
ProcVersionSignature: Ubuntu 3.8.0-27.40-generic 3.8.13.4
Uname: Linux 3.8.0-27-generic x86_64
ApportVersion: 2.9.2-0ubuntu8.3
Architecture: amd64
Date: Fri Aug 16 12:32:17 2013
InstallationDate: Installed on 2013-04-24 (113 days ago)
InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130402.1)
MarkForUpload: True
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Incomplete


** Tags: amd64 apport-bug raring
-- 
Detected a hung GPU, disabling acceleration.
https://bugs.launchpad.net/bugs/1213022
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