On Lenovo g570 ubuntu 12.10 worked perfectly. After upgrade to 13.04 X-Windows started locking up (only the mouse cursor was reacting to mouse movements, but nothing else). The lockup occurs after couple of minutes working in gnome-classic-fallback window manager, no 3D activity was done at the time (at least intentionally). The X lockup is accompanied by messages like these in dmesg (every second or so):
[ 533.963858] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer elapsed... render ring idle [waiting on 25899, at 25898], missed IRQ? -- 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/761065 Title: [Sandybridge] Spurious "*ERROR* Hangcheck timer elapsed... blt ring idle" messages in dmesg when using compiz To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/761065/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
