The following issue has been CLOSED ====================================================================== <https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1044> ====================================================================== Reported By: jefferai Assigned To: ====================================================================== Project: ALSA - driver Issue ID: 1044 Category: PCI - intel8x0 Reproducibility: always Severity: major Priority: normal Status: closed Distribution: Gentoo Kernel Version: 2.6.15 Resolution: unable to duplicate Fixed in Version: ====================================================================== Date Submitted: 04-11-2005 17:41 CEST Last Modified: 07-15-2006 01:58 CEST ====================================================================== Summary: Heavily distorted audio Description: I have a laptop that is fine by itself, but when plugged into my docking station I get heavily distorted audio when something plays either directly to hw0:0 or through the OSS emulation. The problem seems to be with sample rate conversion -- if I create my own dmix-based device that resamples audio to 48KHz and then plays it to hw0:0, and I have an ALSA-aware app that lets me define which device to use and set it to that device, the audio is beautiful both on and off of the docking station. Unfortunately, not all apps allow these settings, so things such as RealPlayer and Flash (in Firefox) sound horrid if I'm on my docking station, which is most of the time. I've seen this same problem through three Linux distributions now (Gentoo, SuSE, and Fedora Core 3) on the same laptop so I know it's an ALSA issue (or configuration issue) and not distribution-specific. I've hard-set the ac97 clock option in the snd-intel8x0 module to 48000 but this doesn't help, and my clock is detected as being 48000Hz anyways. I don't know what to do. Some people have said to point OSS apps to /dev/adsp but apps complain it's not a valid device, and anyways pointing to anything but /dev/dsp doesn't seem to be an option for all apps. Besides, I'd still have the ALSA issues for apps that don't let you define which device to use. Following are relevant snippets of files. I'm on up-to-date Gentoo linux using the Gentoo alsa-driver, alsa-tools, alsa-headers, alsa-lib, and alsa-oss ebuilds, all 1.0.8. Configuration files are the defaults (I added the extra device with a .asoundrc). TIA, Jeff ====================================================================== ---------------------------------------------------------------------- rlrevell - 03-01-06 01:34 ---------------------------------------------------------------------- Hmm, with alsa-lib 1.0.9b or later, dmix should be used by default with this device - can you double check that disabling the .asoundrc and using the "default" device (aplay file.wav) does not work? ---------------------------------------------------------------------- rlrevell - 03-01-06 01:35 ---------------------------------------------------------------------- Also what's the exact model of the laptop? This might be hard to fix (lack of documentation)... Issue History Date Modified Username Field Change ====================================================================== 04-11-05 17:41 jefferai New Issue 04-11-05 17:41 jefferai Distribution => Gentoo 04-11-05 17:41 jefferai Kernel Version => 2.6.11-ck3 04-12-05 16:32 tiwai Note Added: 0004448 04-12-05 18:13 jefferai Note Added: 0004457 04-12-05 18:39 tiwai Note Added: 0004458 12-30-05 04:42 rlrevell Note Added: 0007219 03-01-06 01:02 rlrevell Status new => closed 03-01-06 01:29 jefferai Kernel Version 2.6.11-ck3 => 2.6.15 03-01-06 01:29 jefferai Status closed => feedback 03-01-06 01:29 jefferai Resolution open => reopened 03-01-06 01:29 jefferai Note Added: 0008258 03-01-06 01:34 rlrevell Note Added: 0008260 03-01-06 01:35 rlrevell Note Added: 0008261 04-14-06 03:31 Ensnared Issue Monitored: Ensnared 07-15-06 01:58 Adrian Bunk Status feedback => closed 07-15-06 01:58 Adrian Bunk Resolution reopened => unable to duplicate ====================================================================== ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
