[PlanetCCRMA] realtime not working on fc11 ?

Jonathan Ryshpan jonrysh at pacbell.net
Tue Sep 8 14:22:59 PDT 2009

On Sat, 2009-09-05 at 23:08 +0200, Felix Pfeifer wrote:
> Hi all,
> i recently installed FC11 and tried to start jackd with qjackctl.
> I get many dropouts and seem to have no permission to
> acquire realtime for jack. My user-account is in all pulse* groups
> and in group audio. I did not install pulse - do i have to???
> All works fine under FC10. Any ideas? Here is (part of) the output of qjackctl:
> ...
> JACK server starting in realtime mode with priority 89
> creating alsa driver ... hw:0|hw:0|128|4|44100|0|0|nomon|swmeter|-|16bit
> Using ALSA driver HDA-Intel running on HDA Intel at 0xffe00000 irq 16
> configuring for 44100Hz, period = 128 frames (2.9 ms), buffer = 4 periods
> ALSA: final selected sample format for capture: 16bit little-endian
> ALSA: use 4 periods for capture
> ALSA: final selected sample format for playback: 16bit little-endian
> ALSA: use 4 periods for playback
> 22:56:14.315 Schaubild der ALSA-Verbindungen geändert.
> port created: Midi-Through:midi/playback_1
> port created: Midi-Through:midi/capture_1
> Cannot use real-time scheduling (RR/89)(1: Operation not permitted)
> AcquireRealTime error
> ...

I see this too, running jackd both from qjackctl and from the command
line, and have reported it in detail to the jackd mailing list.  Has
anyone else seen it?  Any cures known?


More information about the PlanetCCRMA mailing list