On Mon, Aug 25, 2014 at 08:33:02PM -0700, Eric Rannaud wrote: > [Cross-post from LKML; apologies if you've all already seen this] > > Hi, > > Between 3.13.5 and 3.15.4, suspend became partially broken on Macbook Pro 15 > (late 2013): a few minutes after wakeup from the *second* suspend following a > fresh boot, the screen will randomly turn itself off at shorter and shorter > time intervals, and turn itself back on after a few seconds and/or user > interaction. Eventually, after 4 or 5 such cycles, the screen refuses to turn > back on altogether, and the system must be rebooted (closing the lid again has > no effect). > > When the screen turns back on, there is usually some transient corruption (full > screen is displayed shifted to the right by 1/10th of its full width, > cutting off the > right side, which wraps back to the left). This corruption disappears after > additional user interaction that forces a re-render. > > The issue is still present in Linus' tree (v3.17-rc1-22-g480cadc2b7e0). > > Before I get started trying to bisect this slow-to-reproduce problem, has > anyone any idea of possible causes? Sounds new. Anything interesting going on in dmesg while the on/off flickering goes on if you crank up output with drm.debug=0xe? Otherwise I guess bisect it is. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
