Requires /etc/init.d/xvfb

[dyfer]

AFAICT, qpm requires /etc/init.d/xvfb to start xvfb. That file is not available in some distros, particularly in images used by github runners.

While I see the headless switch in the source that could prevent qpm from attempting to run /etc/init.d/xvfb, there doesn't seem to be a way to set if from outside, e.g. from the command line.

I don't know what's the proper way to start/use xvfb. If disabling it would be an option, one could start xvfb manually before qpm I think...

Issue showing in GHA: https://github.com/dyfer/supercollider/runs/1620784190?check_suite_focus=true#step:14:28