Public bug reported:
I have an onboard intel hda sound cared and 2 USB C-media microphone
adapters (sometimes plugged in/sometimes not). If the usb microphones
are plugged in on boot the intel-hda card gets a random position of card
0, card 1 or card 2 instead of getting card 0 all the time as expected.
I thought the lines below in /etc/modprobe.d/alsa-base.conf were
supposed to prevent this:
# Keep snd-usb-audio from beeing loaded as first soundcard
options snd-usb-audio index=-2
It is not working properly on my desktop. Each boot gives a random card
0.
** Affects: alsa-base (Ubuntu)
Importance: Undecided
Status: New
** Tags: alsa card order
** Attachment added: "output of aplay -l"
https://bugs.launchpad.net/bugs/1519751/+attachment/4525118/+files/device-order
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https://bugs.launchpad.net/bugs/1519751
Title:
USB Microphones grab card 0
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