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I have read through the posts regarding ALSA, as well as the info at the ALSA site. I am overwhelmed and confused
My problem is: my system has an onboard soundcard, but I want to use a card that is in a pci slot. I have tried to disable the onboard sound through bios, but I find no mention of the onboard sound there(bios). I know that there has to be a way to set the default card in linux (I am running Debian, kernel 2.6); that is the way I want to go. Can anyone tell me how to set which card is default?
I know that there is system info that I should post, but I am a real newbie and do not know where tho find whatever you may need. Let me know, and I will post.
The Linux kernel has a modular design and newer versions of it checks the hardware and then loads the correct modules. So the first thing you need to investigate is what the names of the soundcard drivers (modules) are. You can see this in the Alsa soundcard database on their homepage.
There is a few terminal commands that are good to know in these situations (they are usually run as root command: su root):
lsmod - lists all modules the kernel has currently loaded.
modprobe - Manually loads a module (adding an -r removes it)
Now you need to prevent the module of the onboard chip from being loaded. This is done by adding its name to the file /etc/hotplug/blacklist. Now the linux kernel will (hopefully) ignore the onboard driver and load the pci card driver instead.
The ens1371 is the card that I want to use. The onboard card is C-Media Electronics Inc CM8738 (according to lspci). I do not see where the onboard driver is being loaded. Is it? Maybe ALSA is not running and my sound is coming from elsewhere? What is my next step?