[Nouveau] [Bug 108520] [GK104] MST DisplayPort HiDPI screen flicker

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108520

--- Comment #6 from JM9 <jhnmlkvch9 at gmail.com> ---
(In reply to Ilia Mirkin from comment #5)
> OK, so ...
> 
> A few facts:
> 
>  - GK104
>  - Driving 4 monitors
> 
> Question: Are the 2560x1440 and 1920x1200 daisy-chained (hence the "MST"
> reference), or is it just that the 2560x1440 monitor's manufacturer name is
> "MST", without any reference to Multi-Stream Transport?

They are not daisy-chained. I'm not sure about the MST reference. I think this
is  a regression in X11 1.20. I filed a separate bug about that:
https://bugzilla.freedesktop.org/show_bug.cgi?id=108516
(If Hybrid Graphics is enabled, MST reference is gone.)

Another odd thing I noticed is, if I start X and then hot plug the monitor,
there is no flicker.

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