suspend/resume regression

[Niclas Zeising]

On 05/13/18 17:58, Theron wrote:
>> Hi!
>> I'm also seeing issues, not as severe as Pete, but after I resume 
>> (which works, with drm-next and DMC firmware), the system becomes 
>> sluggish.  It feels like I/O takes more time, and graphics are 
>> sluggish (very sientific, I know, but for instance git operations are 
>> much slower after a resume).  I know there's been an update to acpica 
>> between my system updates, when this started to happen, but I haven't 
>> had time to revert that update and test again.  I will try to do that 
>> and report back.
>> Regards
> Hi Niclas,
> I used drm-next on Skylake with issues which sound similar. Resuming 
> from suspend, or simply switching the laptop display output off and on 
> from xrandr, resulted in graphics sluggishness (drop to 30fps in 
> glxgears) and graphical corruption in Xorg apps, which persisted even 
> after restarting these apps.  Switching to drm-stable made the problems 
> go away; I haven't had time to figure out what -next is doing 
> differently to cause them.
> 
> Pete's issue sounds more severe, and unrelated as it happens without drm 
> loaded.  My kernel is two weeks out of date (r333093), so I need to 
> check whether the more recent changes affect my system as well.
> 

I have a Kaby Lake system.  I haven't tried switching outputs with 
xrandr, I have to do that as well.  What versions of drm-next and 
drm-stable have you tested?
Regards
-- 
Niclas