Re: Intel Driver and 4K video output

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Chris,

On Thu, Apr 23, 2015 at 11:19:50AM +0100, Chris Wilson wrote:
> Anything is possible... Considering that the two halves are different
> sizes to the eDP, you can either scale the DP or scale the panel. You
> can try something like

well, if anything is possible, can I keep virtual size 4k while display is
turned off?

What I do is:
xrandr --output eDP1 --panning 3840x2160
xrandr --output DP1-9 --preferred --pos 0x0 --crtc 1 --output DP1-8
--preferred --pos 1920x0 --crtc 2
xrandr --output eDP1 --off

if I do not turn eDP1 off, things work pretty well. However, as soon as I turn
eDP1 off, window manager thinks I have two separate screens 1920x2160, e.g.,
xfce panel shrinks to a half of size.

I do all this to switch desktop to external diplay while in office. So I would
like to have eDP1 turned off and use only the external display while being
able to switch them on the fly using xrandr. 

-- 
Lukáš Hejtmánek
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