Max, have you made sure to reboot, or at least log out/in, after changing the rtprio in /etc/security/limits.d/audio.conf ?
What happens if you run ulimit -r ; does it say 95?
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I had not changed limits.d, as it already was set up correctly.
however, I restarted anyway and it works now, no idea what was going on.
ulimit -r says 95
Ahh changes to PAM (The changes to limits.d you looked at) require at the least a logout/login to take affect. This was likely done by a package you installed if you did not do it yourself, but it was still a change from the default.
A reboot is just more thorough. So if you hadn’t done that yet that would explain exactly what you were seeing.
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