[Intel-gfx] Intel Driver and 4K video output

[Chris Wilson]

On Mon, Apr 27, 2015 at 01:19:01PM +0200, Lukas Hejtmanek wrote:
> On Fri, Apr 24, 2015 at 02:15:09PM +0100, Chris Wilson wrote:
> > Check panning afterwards? What does xrandr --verbose say before/after?
> 
> even with explicit:
> xrandr --output eDP1 --off --fb 3840x2160 --panning 3840x2160
> 
> no luck.
> 
> looks like you need at least one outout that keeps fb/panning, disconnected
> are not counted.
> 
> pitty I cannot use VIRTUAL1 for this purpose.

Hmm, you probably could...

Try
xrandr --newmode v4k 712.34  3840 4152 4576 5312  2160 2161 2164 2235  -HSync +Vsync
xrandr --addmode VIRTUAL1 v4k
xrandr --output VIRTUAL1 --mode v4k
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre