Fatal error: run out of xids (xorg)

I've just installed slock () a simple screen locker and whenever I call "slock", picom stops working. I start picom, my compositor, in the background through my .xprofile Sometimes I also get an error message when calling "slock":

[ 10/24/2021 02:30:01.707 x_new_id FATAL ERROR ] We seems to have run of XIDs. This is either a bug in the X server, or a resource leakage in the compositor. Please open an issue about this problem. The compositor will die.

Any help appreciated!

1 Answer

This is an issue that generally arises with picom's old backends on large screens.

Try to run picom with the new backends by passing the following flag:

--experimental-backends

see: Crash when slock is started and Picom crashes when running maim -s with an rotated display

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