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December 2013

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[alsa-devel] Bug: plugging in a new sound card causes mixer state of other sound cards to be changed
by Angus McInnes 01 Dec '13

01 Dec '13

Hi, When I plug in my USB sound card, the mixer settings of the internal sound card are changed. I don't want this to happen. I believe the problem is with this commit: http://git.alsa-project.org/?p=alsa-utils.git;a=blobdiff;f=alsactl/90-alsa-… The card number $attr{number} comes from the card* device. Since KERNELS=="card*" was changed to KERNELS!="card*", alsactl restore is run with no card number attribute, so it restores the state of all cards. If I change the != back to ==, alsactl restore is run with a card number and the problem seems to be resolved. (By the way, your bug tracker at https://bugtrack.alsa-project.org/alsa-bug seems to be down.) Regards, Angus McInnes

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