Ville Syrjälä - 12.09.18, 19:10: > On Tue, Sep 11, 2018 at 12:17:05PM +0200, Martin Steigerwald wrote: > > Cc´d Intel Gfx mailing list, in case somebody there knows something: > > > > Cc´d Thorsten for regression tracking… forgot initially. Can also > > open bug report at a later time but so far I cannot provide many > > details about the issue. > > > > Rafael J. Wysocki - 11.09.18, 10:17: > > > On Tue, Sep 11, 2018 at 10:01 AM Martin Steigerwald > > > > <martin@xxxxxxxxxxxx> wrote: > > > > Hi. > > > > > > > > Linus Torvalds - 02.09.18, 23:45: > > > > > As usual, the rc2 release is pretty small. People are taking a > > > > > > > > With 4.19-rc2 this ThinkPad T520 with i5 Sandybrdige sometimes > > > > hangs > > > > with black screen when resuming from suspend or hibernation. > > > > With > > > > 4.18.1 it did not. Of course there have been userspace related > > > > updates that could be related. > > > > > > > > I currently have no time to dig into this and on this production > > > > laptop I generally do not do bisects between major kernel > > > > releases. > > > > So currently I only answer questions that do not require much > > > > time > > > > to answer. > > > > > > > > For now I switched back to 4.18. If that is stable – and thus > > > > likely > > > > no userspace component is related –, I go with 4.19-rc3 or > > > > whatever > > > > is most recent version to see if the issue has been fixed > > > > already. > > > > > > There were almost no general changes related to system-wide PM > > > between 4.18 and current, so I would suspect one of the device > > > drivers or the x86 core. It also may be something like CPU > > > online/offline, however.> > > I see. I wondered about intel-gfx driver already. Of course it could > > also be something else. > > > > I forgot to mention: The mouse pointer was visible, but the screen > > remained black. > > Did the mouse cursor still move or not? No, it did not move. > Could also try suspend without any GUI stuff in the way. Or try the > intel ddx instead of the modesetting ddx (assuming that's what > you're using now) and no compositor to rule out GPU hangs killing > the compositor. The intel ddx can also deal with the GPU not > recovering from a hang by switching to software rendering, > whereas modesetting cannot. Thanks for these suggestions. Currently laptop is still on 4.18 again (4.18.7) and I did not see this hang after resume so far. If it continues to be stable for a few more days, I try with latest 4.19 again as then its very likely kernel related. > Hmm. Also T520 is an optimus laptop maybe? If there's an nvidia > GPU involved it's going to be hard to get anyone to care. Better > switch that off in the BIOS if you haven't already. I decided back then for Intel only graphics. I never regretted this. For me NVidia graphics is not an option, unless NVidia significantly changes their policy regarding free software drivers. Thanks, -- Martin _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
