fsando, could you please confirm this issue exists with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ . If the issue remains, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:
apport-collect -p linux <replace-with-bug-number> Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags: kernel-fixed-upstream kernel-fixed-upstream-VERSION-NUMBER where VERSION-NUMBER is the version number of the kernel you tested. For example: kernel-fixed-upstream-v3.11-rc5 This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag: needs-upstream-testing If the mainline kernel does not fix this bug, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-VERSION-NUMBER As well, please remove the tag: needs-upstream-testing Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding. ** This bug is no longer a duplicate of bug 1041790 [snb] GPU lockup IPEHR: 0x0b160001 IPEHR: 0x0b140001, workaround i915.semaphores=0 ** Changed in: xorg (Ubuntu) Status: New => Incomplete ** Package changed: xorg (Ubuntu) => linux (Ubuntu) ** Description changed: 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) ** Tags added: needs-upstream-testing regression-potential -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1213022 Title: Detected a hung GPU, disabling acceleration. Status in “linux” package in Ubuntu: Incomplete Bug description: 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) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1213022/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp