> -----Oorspronkelijk bericht----- > Van: Karsten Wiese > Verzonden: woensdag 19 december 2007 16:55 > Aan: linux-audio-user@xxxxxxxxxxxxxxxxxxxx > CC: Raphael Bollen > Onderwerp: Re: Xruns and Thinkpad T60 > > > Am Montag, 17. Dezember 2007 schrieb Raphael Bollen: > > Hi Everyone, > > > > I'm struggling to transform a Thinkpad T60 into a decent > audio system. I've installed ubuntu studio Feisty and a > realtime kernel from texware.it. When I run jack in realtime > mode using for > example 512 frames/period, it shows in its messages a lot > (>10/sec) late driver wakeup warnings and does a lot of xruns > (>1/sec). I've changed the IRQ priority of the sound card (an > HDA intel) to > realtime but this does not change the warnings/xruns. It's > not the first time I setup a computer for audio and so far > succeded using 64 frames/period. Here I tried every settings I could > (periods/buffer, samplerate, even tried with a Maudio Fast > track pro) but still no joy. > > > > This Thinkpad has an ATI graphic card (not on the same IRQ > as the sound card) and uses fglrx driver. Could this be the > culprit? Is there another (free) driver I could use? Does > anyone have an > idea of what to try next? > > Maybe this helps: > Using a 2.6.24-rc5 kernel with jackd @builtin hda intel soundcard: > > $ jackd -t100 -RP 80 -d alsa -d hw:0 -p128 -n3 > > The -t100 and the -n3 took me some time to find out. > With em the only thing noticed so far to stall jackd was $ lsusb. > > Karsten > Thank you for this information and sorry I couldn't reply sooner. I have now found that the soundcard is sharing its interrupt with ipw3945 (wifi driver) and it's probably the reason for the xruns. I'll try to deactivate the driver when I get access to this computer again (it's not mine and remote debugging is not always easy...) Best regards and Merry Christmas everyone -- Raphaël. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
