Messages in this thread | | | Subject | Re: linux-4.4 bisected: kwin5 stuck on kde5 loading screen with radeon | From | Vlastimil Babka <> | Date | Mon, 18 Jan 2016 11:49:59 +0100 |
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On 01/16/2016 05:24 AM, Mario Kleiner wrote: > > > On 01/15/2016 01:26 PM, Ville Syrjälä wrote: >> On Fri, Jan 15, 2016 at 11:34:08AM +0100, Vlastimil Babka wrote: > > I'm currently running... > > while xinit /usr/bin/ksplashqml --test -- :1 ; do echo yay; done > > ... in an endless loop on Linux 4.4 SMP PREEMPT on HD-5770 and so far i > can't trigger a hang after hundreds of runs. > > Does this also hang for you?
No, test mode seems to be fine.
> I think a drm.debug=0x21 setting and grep'ping the syslog for "vblank" > should probably give useful info around the time of the hang.
Attached. Captured by having kdm running, switching to console, running "dmesg -C ; dmesg -w > /tmp/dmesg", switch to kdm, enter password, see frozen splashscreen, switch back, terminate dmesg. So somewhere around the middle there should be where ksplashscreen starts...
> Maybe also check XOrg.0.log for (WW) warnings related to flip.
No such warnings there.
> thanks, > -mario > > >>> Thanks, >>> Vlastimil >>
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