Multiple DRI card detection in compositor systemd units
contact at emersion.fr
Wed Sep 22 15:29:38 UTC 2021
Maybe try creating multiple physical seats with logind, and start each
compositor on its own seat? A physical seat is a collection of devices like
DRM nodes and evdev device files.
Also udev creates files in /dev/dri/by-path/, these should be stable across
reboots. `udevadm settle` before a compositor start-up can wait for udev to
finish its job.
Out of curiosity, can you explain your use-case? Why do you need to start
multiple compositors, each on its own GPU?
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