I have a new Dell PowerEdge T110 workstation to replace the old T105.  Both of 
them lack any proper sound hardware so I've got USB speakers.

Some time in the process of replacing the system or the monitor (which is a 
USB hub and thus changes USB device assignment) sound stopped working in KDE.  
It seems that the main problem is that there is some sort of sound hardware 
detected on the motherboard (maybe the built in PC speaker) which causes the 
real sound hardware to be registered as ALSA device 1.

So far the only way I've discovered to make things work is to make the 
following sym-links to make the USB sound hardware be device 0.

# ls -l /dev/snd
total 0
drwxr-xr-x. 2 root root       60 Dec  9 20:49 by-id
drwxr-xr-x. 2 root root       80 Dec  9 20:49 by-path
lrwxrwxrwx. 1 root root        9 Dec 18 00:05 controlC0 -> controlC1
crw-rw---T. 1 root audio 116,  3 Dec  9 20:49 controlC1
crw-rw---T. 1 root audio 116,  5 Dec  9 20:49 hwC0D0
lrwxrwxrwx. 1 root root        8 Dec 18 00:09 pcmC0D0p -> pcmC1D0p
crw-rw---T. 1 root audio 116,  4 Dec  9 20:49 pcmC0D3p
crw-rw---T. 1 root audio 116,  2 Dec 18 00:09 pcmC1D0p
crw-rw---T. 1 root audio 116,  1 Dec  9 20:49 seq
crw-rw---T. 1 root audio 116, 33 Dec  9 20:49 timer

Is there a way that I can reserve device 0 for the USB device?  It needs to be 
reserved because the motherboard hardware is detected before the USB bus is 
scanned - if the monitor is even turned on when the system is booted.

Is there a way I can make the system just ignore the motherboard device and 
have only 1 ALSA card?  There's only one thing that can ever be useful so it 
seems best to make it the only recognised card in the system.

Thanks

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