Unfortunately, an hour later, apport catapulted me back onto this site. So this is with the 3.8.2 kernel and with the line GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.semaphores=0 i195.i915_enable_rc6=0" in grub.
This time, I cannot find any error messages relating to i915 in the syslog or kernel.log. Not sure why apport sent me to this site here again. I now remembered that I installed some extension to apport in order to help capture kernel errors. All these error reports are generated by /usr/share/apport/apport-gpu-error-intel.py. It contains the line: attach_file_if_exists(report, '/sys/kernel/debug/dri/0/i915_error_state', 'i 915_error_state') Unfortunately: root@machine:/usr/share/apport# more /sys/kernel/debug/dri/0/i915_error_state no error state collected Any more ideas how I could shed light into this? Otherwise I'll have to try a clean install in the coming days. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1154591 Title: [sandybridge-m-gt2+] False GPU lockup IPEHR: 0x3b000000 IPEHR: 0x0b140001 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1154591/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
