Created attachment 48074 [details] dmesg System Environment: -------------------------- Platform: IvyBridge Libdrm: (master)2.4.26 Mesa: (master)8875dd58719b978283e89acf04422a4eaf9b021d Xserver: (server-1.10-branch)xorg-server-1.10.2-11-g9551f5041915fa00ca243a279efb55de2ff11a00 Xf86_video_intel:(master)2.15.0-96-ga1ee4b930846d4ba9274028c08800b882fc926f1 Cairo: (master)3b9c8744898823a4b09917f0540a324318fef726 Libva: (master)3c1b6875b589f3a40709a889da85b979e34db625 Kernel: (drm-intel-fixes)6a574b5b9b186e28abd3e571dfd1700c5220b510 Bug detailed description: ------------------------- running the command: xscreensaver & select some GL program of xscreensaver, running the command: xscreensaver-command -select 2 or LIBGL_ALWAYS_SOFTWARE=1 xscreensaver-command -select 2 after displaying one frame, GPU hang right now.
You need Jesse's kernel patches which make pageflipping work: http://lists.freedesktop.org/archives/intel-gfx/2011-June/011014.html Without those, most fullscreen apps will GPU hang. As far as I know, those patches fix the issue.
Thanks. Using Jesse's kernel patches, xscreensaver can run well in Ivy Bridge and Sandy Bridge. (In reply to comment #1) > You need Jesse's kernel patches which make pageflipping work: > http://lists.freedesktop.org/archives/intel-gfx/2011-June/011014.html > Without those, most fullscreen apps will GPU hang. As far as I know, those > patches fix the issue.
*** This bug has been marked as a duplicate of bug 38362 ***
A patch referencing this bug report has been merged in Linux v3.0-rc5-80-gca56a95: commit 7c9017e5b77118439952fe8dc22809bae4fae4b6 Author: Jesse Barnes <jbarnes@virtuousgeek.org> Date: Thu Jun 16 12:18:54 2011 -0700 drm/i915: add Ivy Bridge page flip support
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