https://bugzilla.kernel.org/show_bug.cgi?id=65911 --- Comment #9 from tomka <tom@xxxxxxxxxxxxxxx> --- Thanks for the clarification. I just tested different versions of the userspace tools---unfortunately, without any success. For every component tested, I made sure the others are used in their resent stable version. libdrm-git with the current master and c6d73cfeeaff9596c735d0a10b248f94b2e1e347 Tue Jul 2 09:24:53 2013 +0100 040f6b015ef7d9c1bda09f78a8873f6da45d5e95 (first this year) Thu May 9 12:55:42 2013 +1000 2089a0080edb1b42449ee9a97f2cef7399c16d53 Mon Nov 5 22:21:42 2012 +0000 xf86-video-ati-git with current master and 67fb82a3f0759b171fea21b475a70fa825693570 Tue Oct 1 09:35:30 2013 -0400 fdb7563a5cbc736b09c2864b67a93b475c98b2bd Thu Jan 24 21:17:11 2013 -0500 4e35b2f530e2ca8c7b7220cacd05c661de43d20d Thu Jan 10 12:10:52 2013 +0100 60cd6ceaf44b506433aebf6b3a639a17604dfddd Wed Nov 21 18:42:56 2012 mesa-git (and thereby mesa-libgl-git and ati-dri-gitwith current master and e556286802811b4b99c692d1ff5197f8ee1f011b Wed Mar 20 11:54:33 2013 -0700 5ffa28df4e4cc22481b4ed41c78632f35765f41d Wed Jul 31 15:18:52 2013 +0200 For mesa-git, I couldn't get further back in history easily, because Bison 3 wasn't supported before. Like I said, no change couldn't fix the GPU lockups or even change the error itself. During the tests, however, I figured there was slightly more detail in the dmesg log which I didn't see before: kernel: radeon 0000:00:01.0: GPU lockup CP stall f...ec kernel: radeon 0000:00:01.0: GPU lockup (waiting f...2) kernel: [drm:r600_ib_test] *ERROR* radeon: fence w...). kernel: [drm:radeon_ib_ring_tests] *ERROR* radeon:...). kernel: radeon 0000:00:01.0: ib ring test failed (-35). Do you have any suggestions on what I could try next? -- You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel