[ubuntu-studio-users] Default sound settings

David Sumbler david at aeolia.co.uk
Thu Nov 3 15:49:47 UTC 2016

Thanks for the suggestion.  Unfortunately adding 
'options snd slots=snd_hda_intel' (as it would be in my case) to
/etc/modprobe.d/alsa-base.conf has not made any difference, even after
rebooting the computer.


On Thu, 2016-11-03 at 14:48 +0100, Ralf Mardorf wrote:
> Hi,
> get the driver name of that device by lshw like this
> ubuntu-mate at ubuntu-mate:~$ sudo lshw -C sound | grep driver
>   configuration: driver=snd_hdspm latency=0
>   configuration: driver=snd-usb-audio maxpower=100mA speed=12Mbit/s
> On my machine the wanted sound card's driver is snd_hdspm.
> Then generate a file, resp. add to an existing file, that ensures
> that
> the wanted sound card always is hw:0 after startup. The below
> commands
> first tries to make a copy, assuming /etc/modprobe.d/alsa-base.conf
> should already exist.
> ubuntu-mate at ubuntu-mate:~$ sudo -i
> root at ubuntu-mate:~# cp -ai /etc/modprobe.d/alsa-base.conf /root/alsa-
> base.conf.backup
> root at ubuntu-mate:~# echo "options snd slots=snd_hdspm" >>
> /etc/modprobe.d/alsa-base.conf
> Just replace snd_hdspm with your driver. On my machine this does
> cause
> that the device that belongs to the driver snd_hdspm is always hw:0
> and
> the other device becomes hw:1.
> This might solve your issue, if not you simply could delete the file
> or
> replace a file that already existed with the backup.
> Regards,
> Ralf

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