I'm having a weird issue with my audio that I can't seem to find the answer to anywhere.
Computer at issue is an MD with an MCP51 onboard sound card (SigmaTel STAC9227).
When running the AV Wizard I get no sound. While the test sound file is playing, I CAN hear it if I switch to any other terminal; tty2, tty3, etc...
Upon completing the AV Wizard and running the MD, which runs perfectly other than this issue, the same problem persists. For example, if I launch MythTV I have no sound but as soon as I switch to another terminal, I can hear the MythTV Audio.
KDE Desktop exhibits the same symptoms.
I have had this specific computer working
Here's where it gets even weirder.
I have another MD with the same hardware and I don't have this issue. The only hardware difference is that on the non-working MD, I have added in a nVidia 8400 graphics card.
The ONLY difference that I can find between the two is that when I pull up Alsamixer and hit F2, I can see that on the working MD I am running ALSA Version 1.0.17. On the non-working MD, it shows that Alsa Version 1.0.23 is running AND that it was compiled for kernel 2.6.27-17-generic.
Why would these two identical MDs have different ALSA versions? I have not manually changed ALSAs at all. Furthermore, could this version difference explain this bizarre scenario?
Any and all help/pointers are greatly appreciated!