Looks like the volume control logic has taken a big hit, when I move the volume up and down with the slider on the Output Devices tab in pavucontrol, I have _huge_ pops and clicks, the volume goes to zero in the playback tab. Git bisect flags the following patch and I manually confirmed that this patch introduces the noises. Arun, can you look into this? I noticed that there are some inconsistencies on the use of !PA_VOLUME_IS_VALID, sometimes the ! is missing. Thanks, -Pierre $ git bisect bad 49101fc540aec9a249e97a9f650be38f9f92f5ac is the first bad commit commit 49101fc540aec9a249e97a9f650be38f9f92f5ac Author: Arun Raghavan <arun.raghavan at collabora.co.uk> Date: Sat Oct 9 15:38:43 2010 +0530 volume: Clamp volume to PA_VOLUME_MAX This ensures that we always clamp the volume to PA_VOLUME_MAX. While this currently has no effect, it will be required for making sure we don't exceed PA_VOLUME_MAX when its value changes in the future.