From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick Shirkey Subject: Re: Re: USB recording - repetitive peaks Date: Sat, 06 Jul 2002 03:37:18 +0900 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: <3D25E75E.6010109@boosthardware.com> References: <3D208C5C.36649172@ladisch.de> <3D21B878.8090902@boosthardware.com> <3D21C827.2060602@boosthardware.com> <3D21D6CA.7000308@boosthardware.com> <3D21DDFD.6000206@boosthardware.com> <3D21EB37.7070008@boosthardware.com> <3D247676.8090309@boosthardware.com> <3D2482BB.5020506@boosthardware.com> <3D25E34B.6000100@boosthardware.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Errors-To: alsa-devel-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: Cc: Takashi Iwai , alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org Patrick Shirkey wrote: > Takashi Iwai wrote: > >> >> i (hopefully) found the spot. >> it happend when snd_pcm_stop() is called during complete callbacks, so >> the working urb won't be released properly. >> now the fixed version is on cvs. >> > > Apparently not the g-spot. > > I just tried using jack+ardour and the system hung again. This time it > may have been triggered when I tried to switch virtual desktops. (I'm > running enlightenment). > > Everything was working (apart from peaks in the sound quality similar to > the ones we were hearing natively only more pronounced). When I tried to > switch into another part of the desktop everything hung. > > I will try again because it may have been a time issue and therefore a > complete coincidence. > > It seems to be directly related to stress on xfree which causes an xrun in jackd. This time when I started up I had a clear signal and could switch screens without dropouts but when I downloaded some messages I caused an xrun and then the sound got all choppy. Still no hang so I tried moving the ardour editor window to a different screen and that was it. I have a usb mouse and am using the nvidia drivers for my video card which is a 64MB geforce2. Plus I was running jackd as normal user. However I can get normal recording and xfree performance if I don't use jack. That is whether I am root user or not. So it sounds like you have sorted the problem (unless you can think of anything else) and I need to do some serious fine tuning to get JACK working correctly. We still need a way to access all four channels at the same time though. -- Patrick Shirkey - Boost Hardware Ltd. For the discerning hardware connoisseur Http://www.boosthardware.com Http://www.boosthardware.com/LAU/guide/ ======================================== ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Bringing you mounds of caffeinated joy. http://thinkgeek.com/sf