I now have new information on this issue, testing under Nevada build 104 this
time.
Moving the slider in gnome-volume-control while audio is playing from another
application stops the sound permanently. To generate sound, I used the `sound'
application from the main menu, by clicking on [test]. While the tone was
sounding,
I moved the slider in gnome-volume-control. The sound disappeared, and never
returned until I rebooted the computer. This happens with the
gnome-volume-control
started from the main menu, or the one in the panel bar. It happens with either
slider in that case.
This is my driver:
Dec 13 09:41:30 amd npe: [ID 236367 kern.info] PCI Express-device: pci1043,81cb
at 10,1, audiohd0
Dec 13 09:41:30 amd genunix: [ID 936769 kern.info] audiohd0 is /pci at
0,0/pci1043,81cb at 10,1
-rwxr-xr-x 1 root sys 70360 Nov 27 17:37 /kernel/drv/amd64/audiohd
I have `truss' output from gnome-volume-control at the time I moved the slider.
This appears to be the relevant part:
ioctl(6, FIONREAD, 0x08046E54) = 0
read(6, "\n\0981804\08003\0 lAC\0".., 192) = 192
pollsys(0x0857E098, 8, 0x08046F08, 0x00000000) = 0
pollsys(0x0857E098, 8, 0x08046F08, 0x00000000) = 0
pollsys(0x0857E098, 8, 0x08046F08, 0x00000000) = 0
pollsys(0x0857E098, 8, 0x08046F08, 0x00000000) = 0
ioctl(18, AUDIO_SETINFO, 0x0804601C) = 0
write(6, " *0203\004\08003E0 P06\0".., 44) = 44
ioctl(6, FIONREAD, 0x08046E54) = 0
read(6, "\n02991803\08003\0 ~F2\0".., 32) = 32
pollsys(0x0857E098, 8, 0x08046F08, 0x00000000) = 1
ioctl(18, AUDIO_GETINFO, 0x08046D1C) = 0
ioctl(18, AUDIO_GETINFO, 0x08046D1C) = 0
ioctl(18, AUDIO_GETINFO, 0x08046D1C) = 0
ioctl(6, FIONREAD, 0x08046E54) = 0
read(6, "\t\0991804\08003\0\0\0\0".., 32) = 32
These are the two devices:
6: S_IFSOCK mode:0666 dev:338,0 ino:21634 uid:0 gid:0 size:0
O_RDWR|O_NONBLOCK FD_CLOEXEC
SOCK_STREAM
SO_SNDBUF(16384),SO_RCVBUF(5120)
sockname: AF_UNIX
peername: AF_UNIX /tmp/.X11-unix/X0
18: S_IFCHR mode:0000 dev:329,0 ino:19002 uid:0 gid:0 rdev:83,10
O_WRONLY
/devices/pci at 0,0/pci1043,81cb at 10,1:sound,audioctl
19: S_IFCHR mode:0000 dev:329,0 ino:18995 uid:0 gid:0 rdev:83,11
O_RDWR|O_NONBLOCK
/devices/pci at 0,0/pci1043,81cb at 10,1:sound,audioctl
Has anyone else seen this behavior? I'm assuming that it only happens with this
driver or this hardware. All the indications in gnome-volume-control appear and
operate normally after the sound stops.
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