[Bug 100440] [GLK] [IGT] testdisplay -a shows corruption on HDMI 4k display

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100440

--- Comment #17 from Ander Conselvan de Oliveira <conselvan2 at gmail.com> ---
(In reply to Luis Botello from comment #16)
> Issue is not seen anymore with that patch series. But display is showing no
> image while running ./testdisplay -a and it goes into the following
> resolution:
> 
> CRTC(36):[7]  2560x1440 60 2560 2608 2640 2720 1440 1443 1448 1481 0x9 0x40
> 241500
> 
> Is there some way to force it or to set a higher timeout between each
> resolution?

$ ./testdisplay -h
usage: ./testdisplay [-hiasdpmtf]
...
        -s      <duration>      sleep between each mode test

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