Re: [igt-dev] [PATCH i-g-t] tests/kms_cursor_legacy: increase timeout for nonblocking flip wait

Chris Wilson
2020-02-21T13:16:30Z

Quoting Juha-Pekka Heikkila (2020-02-21 13:12:46)
> On 21.2.2020 14.23, Chris Wilson wrote:
> > Quoting Juha-Pekka Heikkila (2020-02-21 12:08:07)
> >> When run on more than one monitor there may be modeset in queue
> >> which will block flip. Kernel will timeout with modeset at
> >> ten seconds so lets wait in test also that same ten seconds at
> >> maximum.
> >
> > 10s! You are joking, right? For a modeset that should not be there?
>
> 10s sounded quite big number to me too but that is from Ville. This test
> is now failing because modeset + flip take more than one second, on my
> ICL box with eDP + HDMI connected it becomes 1.19s. Arek is talking
> about test box where it is more than two seconds. Anyway if 10s is what
> kernel is waiting in the worst case I don't think test should be more
> strict.

I think the kernel is broken. From a UX perspective that needs fixing.
-Chris