I am now able to replicate my video freeze by lowering and raising windows at a fast pace. When doing this my screen will 'flicker' for an instant and at times will continue to flicker. The flicker consists actually of two areas on the screen. I've tried to capture a screen shot when the continuous flicker is happening but as soon as I raise the window for Gnome screen shot the flicker stops. Tonight when lowering and raising windows at a fast pace the freeze occurred. Running cat /sys/kernel/debug/dri/0/i915_swizzle_info outputted: bit6 swizzle for X-tiling = none bit6 swizzle for Y-tiling = none DDC = 0x00200010 DDC2 = 0x00300030 C0DRB3 = 0x0030 C1DRB3 = 0x0010 Running cat /sys/class/drm/card0/error outputted: no error state collected The freeze occurred at 20:07:39 my syslog shows this for that time period Oct 14 20:07:32 localhost kernel: [171877.801126] [drm:drm_mode_addfb2] [FB:57] Oct 14 20:07:32 localhost kernel: [171877.838608] [drm:drm_mode_addfb2] [FB:60] Oct 14 20:07:32 localhost kernel: [171877.926645] [drm:drm_mode_addfb2] [FB:64] Oct 14 20:07:32 localhost kernel: [171877.944068] [drm:drm_mode_addfb2] [FB:65] Oct 14 20:07:32 localhost kernel: [171877.975866] [drm:drm_mode_addfb2] [FB:66] Oct 14 20:07:32 localhost kernel: [171877.993399] [drm:drm_mode_addfb2] [FB:67] Oct 14 20:07:33 localhost kernel: [171879.439826] [drm:drm_mode_addfb2] [FB:68] Oct 14 20:07:33 localhost kernel: [171879.462886] [drm:drm_mode_addfb2] [FB:69] Oct 14 20:07:33 localhost kernel: [171879.480867] [drm:drm_mode_addfb2] [FB:70] Oct 14 20:07:36 localhost kernel: [171881.525273] [drm:drm_mode_addfb2] [FB:57] Oct 14 20:07:36 localhost kernel: [171881.660074] [drm:drm_mode_addfb2] [FB:59] Oct 14 20:07:36 localhost kernel: [171881.676724] [drm:drm_mode_addfb2] [FB:64] Oct 14 20:07:36 localhost kernel: [171881.710189] [drm:drm_mode_addfb2] [FB:65] Oct 14 20:07:36 localhost kernel: [171881.726965] [drm:drm_mode_addfb2] [FB:66] Oct 14 20:07:36 localhost kernel: [171881.743498] [drm:drm_mode_addfb2] [FB:67] Oct 14 20:07:36 localhost kernel: [171881.786167] [drm:drm_mode_addfb2] [FB:68] The flicker also appears when switching between window applications such as from window 1 Evolution to window 2 Firefox or any other window. I'm currently running the kernel in my sig per recommendations from the Ubuntu kernel team and will add this to my bug report there for bug https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1497627 I also have a bug report at freedesktop.org https://bugs.freedesktop.org/show_bug.cgi?id=91495 Chris -- Chris KeyID 0xE372A7DA98E6705C 31.11°N 97.89°W (Elev. 1092 ft) 20:30:48 up 7 min, 1 user, load average: 0.95, 1.87, 1.03 Ubuntu 14.04.3 LTS, kernel 4.2.3-040203-generic #201510030832 SMP Sat Oct 3 12:34:31 UTC 2015 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
