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