At Wed, 7 Feb 2007 10:26:32 +0900 (JST), Shingo HORISAWA wrote: > > Hi, alsa developers. > > I have two problems about Realtek HD audio. > > (1) Capturing stops suddenly > > When I was capturing a sound from microphone for > recording voice > using "arecord", it had stopped suddenly. > After that, I couldn't capture a sound at all. > To repair this situation, I had to restart ALSA or > system. > > It seems that this problem occurs when there are heavily > loads. > (For example, when I was using ethereal, it occured.) Did you get any kernel message, for example, something regarding DMA/IRQ problem? Does playback still work even after this happens? How about mixer volume / switch after this? > (2) Sound from embedded speaker > > When I plug a headphone into PC, > I can hear sounds from both of headephone and embedded > speaker. > (Normally, sounds should be heard from headphone.) > > Are these known problem? > And if you know how to avoid them, please tell me. It's likely non-implemented feature. The driver needs to turn the HP and the speaker on/off according to the solicited events. This was implemented for many devices but works only on the known devices. > FYI, my PC is TOSHIBA dynabook Satellite K10, > and my distro is Fedora Core 6. > The audio device is ATI technologies SB450 HDA Audio. The standard kernel has really partial support for recent HD-audio devices. Try to build the latest ALSA HG version (daily snapshot tarballs would be easier) at first: ftp://ftp.suse.com/pub/projects/alsa/snapshot/driver Check the codec chip in /proc/asound/card0/codec#* file. See the kernel message whether it reports as "unknown codec". If yes, try to pass a proper model=xxx option to snd-hda-intel module where xxx is the one of matching model names to your codec found in ALSA-Configuration.txt. HTH, Takashi ------------------------------------------------------------------------- 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
