From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0000589]: ICH5 S/PDIF audio drops out occasionally Date: Wed, 24 Nov 2004 18:07:51 +0100 Message-ID: <92c44f2fa6c7140d9174bc6aa355b651@bugtrack.alsa-project.org> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from bugtrack.alsa-project.org (gate.perex.cz [82.113.61.162]) by alsa.alsa-project.org (ALSA's E-mail Delivery System) with ESMTP id AAC1623F for ; Wed, 24 Nov 2004 18:07:51 +0100 (MET) Sender: alsa-devel-admin@lists.sourceforge.net Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org A NOTE has been added to this issue. ====================================================================== ====================================================================== Reported By: squarooticus Assigned To: ====================================================================== Project: ALSA - driver Issue ID: 589 Category: PCI - intel8x0 Reproducibility: always Severity: minor Priority: normal Status: new Distribution: Debian Unstable (sid) Kernel Version: 2.6.7 ====================================================================== Date Submitted: 10-21-2004 02:42 CEST Last Modified: 11-24-2004 18:07 CET ====================================================================== Summary: ICH5 S/PDIF audio drops out occasionally Description: I'm using the on-board audio of my Abit IC7-MAX3 ("Intel Corp. 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)") with ALSA driver snd_intel8x0 for my home theater setup. In every application I've tried, which includes mythtv, xine, and ogg123, through both native alsa and OSS emulation, the audio output from the S/PDIF port drops out for a second every so often---maybe once a minute, or every few minutes; it's not periodic. I don't know whether analog output also drops out, since I don't have analog output hooked up or enabled. This is with the CVS build as of October 19. My asound.conf is: pcm.krose-dmix { type dmix ipc_key 3516 ipc_key_add_uid yes slave { pcm "hw:0,4" period_time 0 period_size 4096 #buffer_size 16384 buffer_size 131072 period_time 84000 buffer_time 340000 rate 48000 channels 2 } bindings.0 0 bindings.1 1 } pcm.dsp0 { type plug slave.pcm "krose-dmix" } ctl.mixer0 { type hw card 0 } pcm.!default { type plug slave.pcm "krose-dmix" } I can't find any options to compile in debug logging: I'm not really sure what the cause of the drop out is, e.g., buffer underrun, PCI contention, etc. I'm happy to spend time to try to debug this, but I need a starting point. Of course, it'd also be great to know if anyone has ever seen this kind of behavior before. I don't believe the SPD/IF port is turning itself off because the receiver doesn't blip, which normally it would if the input were to disappear temporarily. The CPU is a 3.2G P4 with hyperthreading turned on. I never see the CPU usage go above 50%. Interestingly, I see similar behavior on my dual Opteron machine with an AMD-8111 audio controller using the same driver (snd_intel8x0). I never had this problem with the emu10k1 driver when I was using SB Lives, but I have run into PCI slot limitations in my HTPC, so I have to use mobo audio. Suggestions? ====================================================================== ---------------------------------------------------------------------- squarooticus - 11-24-04 17:55 ---------------------------------------------------------------------- I've been trolling around the abit forums, and I found this: http://forum.abit-usa.com/showthread.php?s=&threadid=37896&highlight=ic7max3+sound+cuts+out There are several other posts indicating similar problems. What do you make of this? Is my motherboard just b0rk3d? ---------------------------------------------------------------------- squarooticus - 11-24-04 18:07 ---------------------------------------------------------------------- Here's another thread: http://forum.abit-usa.com/showthread.php?s=&threadid=58064&highlight=ic7max3+sound+drops+out This makes it sound like there's a software workaround for this. Issue History Date Modified Username Field Change ====================================================================== 10-21-04 02:42 squarooticus New Issue 10-21-04 02:42 squarooticus Distribution => Debian Unstable (sid) 10-21-04 02:42 squarooticus Kernel Version => 2.6.7 10-21-04 23:40 squarooticus Issue Monitored: squarooticus 10-27-04 16:54 squarooticus Note Added: 0002275 11-10-04 12:26 tiwai Note Added: 0002367 11-12-04 06:23 squarooticus Note Added: 0002392 11-15-04 20:24 squarooticus Note Added: 0002419 11-16-04 02:50 squarooticus Note Added: 0002423 11-16-04 05:14 squarooticus Note Added: 0002424 11-18-04 17:51 tiwai Note Added: 0002452 11-24-04 16:33 squarooticus Note Added: 0002571 11-24-04 17:55 squarooticus Note Added: 0002575 11-24-04 18:07 squarooticus Note Added: 0002577 ====================================================================== ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. 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