To help with setting up multi-monitor X I'm using a simple script to get screen resolution information using xrandr. This was working fine until I tried attaching an amplifier to attempt to use HDMI audio output. Now the xrandr output contains extraneous information about a monitor which is not present. Is there some way to avoid xrandr detecting this device as another monitor? The device is an Onkyo TX-NR509.

An obvious workaround is to detach the amplifier every time I start X.

  • Wow, I wonder if that is a bad amp or a bug in the HDMI stack on Linux? – coteyr Nov 1 '13 at 23:31

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