Created attachment 58528 [details] dmesg.0 Xorg.0.log i915_error_state The desktop stop to response after the option "shadow" is set to false. 1) System environment: -- chipset: Intel HD Graphics 3000 -- system architecture: x86_64 -- xf86-video-intel version: 2.18.0 xserver version: 7.6 Mesa version: 8.0.1 libdrm versoin: 2.4.31 -- kernel version: 3.2.0-18-generic -- Linux distribution: DISTRIB_ID=Ubuntu DISTRIB_RELEASE=12.04 DISTRIB_CODENAME=precise DISTRIB_DESCRIPTION="Ubuntu precise (development branch)" -- Machine or mobo model: Hasee K580P -- Display connector: Laptop LED 2) Reproduce steps: Random, but frequently. Just run a bit heavy graphic application, even when a terminal window is run just after the system is rebooted.
See also https://bugs.freedesktop.org/show_bug.cgi?id=47324. Assign to chris@chris-wilson.co.uk
Either those log files are not taken from the system in an error state or this has nothing to do with X.
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