Description of problem: Muting the PCM channel by dragging the slider all the way down (e.g. in Gnome Volume Control or alsamixer) results not in silence, but clicking. Version-Release number of selected component (if applicable): pulseaudio-0.9.10-2.fc9.x86_64 alsa-utils-1.0.17-2.fc9.x86_64 alsa-lib-1.0.17-2.fc9.x86_64 alsa-lib-1.0.17-2.fc9.i386 kernel-2.6.27.6-43.fc9.x86_64 How reproducible: Always. Steps to Reproduce: 1. Start audio. 2. Open Gnome Volume Control. 3. Slide PCM down to the bottom. Actual results: Clicking. Expected results: Silence.
Still present with alsa-lib-1.0.18-6.rc3.fc10.x86_64.
Also under: kernel-2.6.29-0.20.rc3.git12.fc10.x86_64 alsa-lib-1.0.19-2.fc10.x86_64 alsa-lib-1.0.19-2.fc10.i386 alsa-utils-1.0.19-2.fc10.x86_64
Persists under: kernel-2.6.29.3-159.fc11.x86_64 w/ ALSA drivers 1.0.20.0.g75fc7.0.gfb064 alsa-utils-1.0.20-3.fc11.x86_64 alsa-lib-1.0.20-1.fc11.x86_64
Still there with kernel-2.6.30.5-32.fc11.x86_64, alsa-lib-1.0.20-1.fc11.x86_64. Could be a driver issue, reassigning to kernel.
Putting PulseAudio in the way mitigates this. The problem still exists, but is now somewhat moot so I doubt it will be fixed. Closing here, but keeping open in the ALSA tracker.