From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Tom Browne" Subject: snd_pcm_writei not returning (?!?) Date: Wed, 31 Mar 2004 16:33:21 +0100 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: <02a601c41735$801cc090$f93ca851@burpxp> References: <200403311238.i2VCcD33015334@dhin.linuxaudiosystems.com> Mime-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit Return-path: Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org Hi all, I am having serious trouble with ALSA using the poll method as shown in the pcm.c test app... Under certain conditions (yet to be established properly - it doesn't happen every single time) with this ICE1712 card (DSP24), snd_pcm_writei doesn't just block... it never comes back. I thought it may be a bug in the old version of ALSA (0.9.8) so updated the drivers and libs to latest, which had no effect on the problem at all. A bit more thorough checking reveals that the problem only happens at 88200 and 96000 sampling rates... not at 22050, 24000, 44100 or 48000. That's a bit worrying... It's only started to happen regularly (used to be _very_ rare) since I upgraded the development machine from an Intel 815, Celeron 1.0G to a SiS651, Celeron 2.0G setup. The kernel is 2.4.22+ll+supermount if that offers any clues... APIC is turned off, as in the past I couldn't get any sound at all in Linux with it enabled... Cheers, Tom Browne. ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click