[Sunflux]

I am using a video test pattern to count bars. It's pretty easy to see the different because they are either flashing or not.

I have nothing in my autostart.sh.. what should I be using?

Assuming your PC is outputting on HDMI1, you need to add

Code:

xrandr --output HDMI1 --off; xrandr --output HDMI1 --auto

to your autostart.sh for passthrough to work correctly. This won't harm other settings.

Incidentally... you state you have nothing in your autostart.sh... are you setting your xrandr setting via SSH or something? Because that does NOT work correctly for passthrough mode. It's doesn't reset the display correctly, and thus doesn't take effect until you change refresh rates.

Otherwise, your color range setting should ALWAYS be in autostart.sh, for example

Code:

xrandr --output HDMI1 --set "Broadcast RGB" "Video 16:235 pass-through"
xrandr --output HDMI1 --off; xrandr --output HDMI1 --auto