[solved] Qjackctl, Ardour, no realtime permission error, pipewire

[Sidpiet]

Dear Forum,

if I tried to start Ardour by using jack2 I got an error "No realtime", the log of Qjackctl shows the message as well, with the hint "no permission" or similar.

The file  /etc/security/limits.d/audio.conf should be fine:

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@audio   -  rtprio     95
@audio   -  memlock    unlimited


My user is member of the group "audio".

After a long search I found a solution, which helps other users hopefully:

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sudo sysctl -w kernel.sched_rt_runtime_us=-1


My question is how to make it permanent?

Thank you!

Sidpiet

[ro_sid]

Dear Forum,
[...]
After a long search I found a solution, which helps other users hopefully:

Code Select Expand


sudo sysctl -w kernel.sched_rt_runtime_us=-1


My question is how to make it permanent?

Thank you!

Sidpiet

Make a file with a name to your liking ending in .conf (e.g. ardour.conf or 99-ardour.conf) and put it into the /etc/sysctl.d directory.
Write "your" kernel.sched_rt_runtime_us=-1 into it and it will (or should  ) be executed automatically on the next boot.

[Sidpiet]

Hi ro_sid,

Make a file with a name to your liking ending in .conf (e.g. ardour.conf or 99-ardour.conf) and put it into the /etc/sysctl.d directory.

works! I put it in the /etc/sysctl.conf before, which not did the trick!

Thank you!


Kind regard

Sidpiet

[ro_sid]

Hi ro_sid,

Make a file with a name to your liking ending in .conf (e.g. ardour.conf or 99-ardour.conf) and put it into the /etc/sysctl.d directory.

works! I put it in the /etc/sysctl.conf before, which not did the trick!

Systemds(!) sysctl does not evaluate /etc/sysctl.conf .

Thank you!

Kind regard

Sidpiet

You are very welcome.