On Sat, 23 Apr 2016, "Steinar H. Gunderson" <steinar+dri@xxxxxxxxxxxx> wrote: > I have a Lenovo X240, which has Haswell integrated graphics. On upgrade from > 4.5.0 to 4.6-rc1, I noticed an extremely irritating issue; about every > minute, the display shows black for a brief moment (perhaps one or two > frames), then reverts back to the correct display. There are no other ill > effects that I can see, in particular nothing in dmesg. I tried with 4.6-rc4, > and it has the same issue. > > Do I need to run a full bisect to figure out what's causing this, or does it > ring a bell with someone? Please file a bug at [1]. Please add drm.debug=14 module parameter and attach dmesg to the bug, all the way from boot to exhibiting the problem. You might also want to give drm-intel-nightly branch of [2] a try. BR, Jani. [1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel [2] http://cgit.freedesktop.org/drm-intel -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
