Hi! I reported this with fdo for intel drivers back then as https://bugs.freedesktop.org/86565 as I thought it to likely be an intel driver bug. As it still happens and I am not sure of that anymore, I report here as well. I still CC intel gfx list as well, as I didn´t get a comment on the debug log I attached to the bug report till now. Since linux kernel 3.18-rc2 I sometimes get a black screen after resuming from hibernation via in-kernel-suspend. With 3.17 I didn't have this issue. Additionally, sometimes on hibernation the machine after writing the image does not switch off, but stays on with the power LED blinking. I then usually switch it off manually by pressing power button longer and it usually resumes just fine after it. The first issue is most annoying and it seems they are unrelated, cause as I found now, the first issue happens even if the second one didn´t happen before. When the screen is black it takes some minutes usually and then it displays the lock screen again. As it doesn´t happen on every resume from hibernation and it may work okay for five or more attempts, bisecting this likely would take ages. This is with a ThinkPad T520 with BIOS Version: 8AET63WW (1.43 ), Release Date: 05/08/2013. The black screen happens with 3.18-rc2 upto 3.19-rc7. With Intel Sandybridge graphics (no nvidia optimus). I think it may be more of a general PM management issue, as I now heard the the laptop was making the usual resume audio signal *after* the black screen delay. Thus I thought it may be stuck in general resume. In comment #8 I attached a debug log with no_console_suspend drm.debug=0xe initcall_debug as being asked for: https://bugs.freedesktop.org/show_bug.cgi?id=86565#c8 I didn´t yet receive any comment on this. Any further ideas? If not I will test with 3.20-rc2 again and also try the patch Jani mentioned in comment #7 in case its not in there. Thanks, -- Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
