Messages in this thread | | | From | Martin Steigerwald <> | Subject | Re: [REGRESSION 4.19-rc2] sometimes hangs with black screen when resuming from suspend or hibernation (was: Re: Linux 4.19-rc2) | Date | Tue, 11 Sep 2018 12:17:05 +0200 |
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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@lichtvoll.de> 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. That may again point away from Intel gfx driver. There has been a MESA update in between in userspace.
Currently running 4.18.7 to make sure it is no userspace issue.
Thanks, -- Martin
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