Created attachment 25717 [details] Screenshot of the desktop with glxgears running (no compositor) I'm putting this in the 2D driver because there are errors in the X log... current X stack : - libdrm : 11b60973bca1bc9bbda44be4c695e22d28d8ca4a (2.4.9 + 4 patches from master) - xf86-video-intel : 77153d690a3673fdee7bef8e567816b754c43081 (2.7 branch) - xorg-server : 1.6.1 without patches - mesa : 7.4 branch as of last week - kernel : 2.6.30-rc4-00002-g79f11c1 (drm-intel-next branch) So far, everything seems to work ok (including Xv) and the perceived performance is really good. Screenshot shows the bug pretty clearly. Thanks
Created attachment 25718 [details] Xorg.0.log
Created attachment 25719 [details] dmesg
The sysmpton looks similar to bug#18873 and bug#20473. But only this log says: (EE) intel(0): Failed to set tiling on front buffer: Invalid argument
Looks like this fix, in for-review and intel-gfx@lists.freedesktop.org: commit e76a16deb8785317a23cca7204331af053e0fb4e Author: Eric Anholt <eric@anholt.net> Date: Tue May 26 17:44:56 2009 -0700 drm/i915: Fix tiling pitch handling on 8xx. The pitch field is an exponent on pre-965, so we were rejecting buffers on 8xx that we shouldn't have. 915 got lucky in that the largest legal value happened to match (8KB / 512 = 0x10), but 8xx has a smaller tile width Additionally, we programmed that bad value into the register on 8xx, so the only pitch that would work correctly was 4096 (512-1023 pixels), while other would probably give bad rendering or hangs. Signed-off-by: Eric Anholt <eric@anholt.net> fd.o bug #20473.
Confirming. Thanks for fixing this :)
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