On Sat, 2012-04-21 at 14:54 +0200, Daniel Vetter wrote:
Please file a bug report with the error state attach (the entire thing), complete dmesg showing when the problem happens and a short description of the issue at bugs.freedesktop.org against DRI, component DRM/Intel.
See https://bugs.freedesktop.org/show_bug.cgi?id=49041 for that report.
Paul Bolle