I recently puchased an 865PE motherboard from MSI, which includes a CMedia 9739A audio chip. I then compiled linux 2.6.0-test8 and, after a little digging around chose the intel8x0 ALSA driver to drive my sound system. The system booted, I un-muted the PCM and Master volume, played an MP3 and was absolutely astounded at the extremely good sound quality and the absolute lack of volume control.
So I searched the archive for this mailing list and found two messages expounding the same problem. The respondent answered that the CM9xxx chips do not have a PCM Mixer control and, after reading through the CMI9739A Technical Brief available from C-Media's web site I was able to verify this fact. This is all well and good, but I still want volume control and I am not sure how to go about doing it at this point. Should I
1. Forget using ALSA and use a deprecated OSS driver,
2. Continue my attempts to hack the Linux driver that C-Media
distributes so that it works with the 2.6 kernels (it runs,
but still no volume and the sound output is noticeably
inferior), 3. Find/write some user-space utility that programmatically
controls the volume, 4. Pony up the dough to buy a real sound card and stop relying
on on-board codecs, or 5. Scream, rant and rave and people and projects wholly
disconnected with my perceived problem.While no. 5 sounds like the most fun, I have been informed by others that it might not be the most political of responses. Any input is greatly appreciated.
-- Steven Bergom
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