Takashi Iwai wrote: > Francois Ouellet wrote: > > > Hi > > > > When I try to change the PCM volume using alsamixer, nothing happens. It > > just plays at the same volume. Mute does work though. The Master volume > > also does work as expected. Is this a limitation of some cheap on-board > > chipsets, wrong driver loaded, missing feature to be added some time, > > something else? > > it's likely because of AC97 codec, not the sound engine. > > > "amixer info" says this for the SI7012 : > > > > Card default 'card0'/'SiS SI7012 at 0xdc00, irq 10' > > Mixer name : '0x434d4941 CMI' > > Components : 'AC97' > > Controls : 29 > > Simple ctrls : 18 > > i guess the driver on this machine is a bit old.
I'm sorry. I didn't mention it but all three machines have 0.9.0rc7. lspci says 00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] SiS7012 PCI Audio Accelerator (rev a0) for this one. Maybe it's too new. > > and this for the SI7018 > > > > Card default 'SI7018'/'SiS SI7018 PCI Audio at 0xc400, irq 11' > > Mixer name : 'C-Media Electronics CMI9738' > > Components : 'AC97a' > > Controls : 161 > > Simple ctrls : 147 > > the ac97 codec on both are same, CMI9738. And lspci for this one says this 00:01.4 Multimedia audio controller: Silicon Integrated Systems [SiS] SiS PCI Audio Accelerator (rev 02) I recall having the same problem with the kernel OSS drivers on a machine which used cmpci as the audio driver. Could it be the same ac97 codec? Is there anyone else with this ac97 codec? Can you control the PCM Playback Volume? > hmm, strange, i don't found any description about this behavior in the > datasheet... Is there anything I can do to (help) find out what's wrong? ------------------------------------------------------- This SF.net email is sponsored by: SlickEdit Inc. Develop an edge. The most comprehensive and flexible code editor you can use. Code faster. C/C++, C#, Java, HTML, XML, many more. FREE 30-Day Trial. www.slickedit.com/sourceforge _______________________________________________ Alsa-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-user
