Call xrandr individually for each display

[madduck]

The way autorandr previously used to generate one gigantic xrandr call with multiple --outputs wouldn't work reliably. In some setups, I'd consistently get:

xrandr: Configure crtc 1 failed"

whereas running two xrandr calls, one for each display, works.

This patch simply dispatches one xrandr call per display.

[hensur]

I just ran into the same issue. This branch fixed the xrandr errors!

[phillipberndt]

There's drivers that'll automatically reenable one output, and also window managers unhappy about having everything disabled.

[madduck]

Okay, I'll see when I can take another look at the code. I'm now travelling with just a single screen, so…