Re: 4.8-rc1: it is now common that machine needs re-run of xrandr after resume

From: Jani Nikula
Date: Wed Sep 14 2016 - 03:47:03 EST

On Wed, 14 Sep 2016, Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx> wrote:
> On Wed, 14 Sep 2016, Pavel Machek <pavel@xxxxxx> wrote:
>> Hi!
>>> I have
>>> 00:02.0 VGA compatible controller: Intel Corporation 4 Series Chipset
>>> Integrated Graphics Controller (rev 03)
>>> In previous kernels, resume worked ok. With 4.8-rc1, I quite often (1
>>> in 10 resumes?) get in state where primary monitor (DVI) is dead (in
>>> powersave) and all windows move to secondary monitor (VGA). Running
>>> "xrandr" fixes that.
>>> I'll update to newer rc and see if it happens again, but if you have
>>> any ideas, now would be good time.
>> Ok. With -rc6, X are completely broken. I got notification "could not
>> restore CRTC config for screen 63" or something like that, and window
>> manager just does not start.
> Ugh. Can you bisect from v4.7, assuming it worked? That's probably the
> fastest way to resolve this.

Also, if you don't mind, please file a bug at [1], attaching the logs
there. It'll be easier for me to direct attention and priority to the
bug, which will help you too in the end.



Jani Nikula, Intel Open Source Technology Center