jackdbus taking 95% of my CPU

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stanlea
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jackdbus taking 95% of my CPU

Post by stanlea »

It didn't happen since last year, but if I don't close often my session, jackdbus takes more and more cpu and almost freezes my computer. Any clues ?
asbak
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Re: jackdbus taking 95% of my CPU

Post by asbak »

Jackdbus always caused me similar problems, my workaround was to not use it. My computer also ends up going into CPU runaway state after a couple of hours of using jackd2, I unfortunately don't know of a solution. Perhaps use jackd1.
Some Focal / 20.04 audio packages and resources https://midistudio.groups.io/g/linuxaudio
m.lp.ql.m
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Re: jackdbus taking 95% of my CPU

Post by m.lp.ql.m »

I was having a similar issue with my UbuntuStudio 14.04+KXStudio repo setup: http://linuxmusicians.com/viewtopic.php?f=47&t=12936

I couldn't find a way around it, so I completely reinstalled a new setup, this time Kubuntu 14.10+KXStudio repos. It happens much less frequently now, and not as bad when it does. But it does still happen; I'm still exploring.
asbak
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Re: jackdbus taking 95% of my CPU

Post by asbak »

Since disabling jackdbus I don't seem to be experiencing this issue any longer but it is also possible that the fix was related to some other action.
I cannot be certain any longer because I changed and tried so many things.

What seems to work for me:
jack2, qjackctl or starting jack from a terminal

Presumably jack1 will also work OK but I don't make use of it so don't know.

Note - If jackdbus is disabled you won't be able to use Cadence any longer and will need a tool like qjackctl or to start jack from the terminal.

To disable jackdbus:

Code: Select all

 cd /usr/share/dbus-1/services
mv org.jackaudio.service    old.org.jackaudio.service.backup
Reboot

Should you want to re-enable it again just move it back to its original filename and reboot.
Some Focal / 20.04 audio packages and resources https://midistudio.groups.io/g/linuxaudio
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