volume mute/unmute randomly on its own

[jrbjr5]

The volume on my computer randomly mutes/unmutes itself rapidly at unpredictable intervals. sometimes it works fine, other times it does not. I cannot find out what the problem is. I have never had this problem until recently, and this problem has surfaced in ubuntu 10.10, 10.04, 64 and 32 bit versions of the operating systems. I have used this hardware setup for a year before this problem ever surfaced. My hardware is installed and working fine, I just cannot figure out why this is happening. Does anyone know of some commands I can use to find out what is causing the volume to mute/unmute itself? Any help is greatly appreciated, thank you!

[secayford]

I've been having the same issue for months. First on Kubuntu 10.10, now on 11.04. Nothing crashes, nothing gets logged, I just have to unmute the sound every once in a while. Using the onboard audio:



00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
Subsystem: ASUSTeK Computer Inc. M4A785TD Motherboard
Flags: bus master, slow devsel, latency 64, IRQ 16
Memory at fbff4000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
It was particularly bad today, I just switched the headphones from the front audio port to the rear. Seems to have improved for the moment.