Messages in this thread | | | From | "Rafael J. Wysocki" <> | Date | Tue, 11 Sep 2018 10:17:27 +0200 | Subject | Re: [REGRESSION 4.19-rc2] sometimes hangs with black screen when resuming from suspend or hibernation (was: Re: Linux 4.19-rc2) |
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Hi,
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.
Thanks, Rafael
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