Subject: kern/21322: cmpci mixer broken
To: None <firstname.lastname@example.org>
From: None <email@example.com>
Date: 04/26/2003 10:46:13
>Synopsis: cmpci mixer broken
>Arrival-Date: Fri Apr 25 22:47:00 UTC 2003
>Originator: Gregory McGarry
>Release: NetBSD 1.6R
System: NetBSD 1.6R
cmpci0 at pci0 dev 11 function 0: vendor 0x13f6 product 0x0111 (rev. 0x10)
cmpci0: interrupting at irq 10
audio1 at cmpci0: full duplex, mmap, independent
opl at cmpci0 not configured
mpu at cmpci0 not configured
It seems that if you access cmpci through the /dev/audio interface,
it resets the mixer settings to default values. By my understanding,
which matches other sound drivers, only the recording/playing parameters
should be reset, not the mixer settings.
Try using /dev/audio and wonder why the microphone keeps muting
itself. If you use /dev/sound, it works!
Unfortunately, it cannot be repeated using audiorecord. Probably because
it fiddles with the monitor gain, which probably progagates down into the
cmpci driver and fixes the mixer. I can supply code on demand.