Hi folks, I am experiencing an annoying popping sound from my speakers, driven by the onboard sound on the Asus P8Z68V motherboard. It occurs at random intervals, between 1 and 10 seconds apart. The volume of the pops appears to be independent of the volume settings of any currently playing audio. I am using Linux Mint 17. Monitoring the situation, I am getting desktop notifications that the "Volume is muted", followed instantly by "Volume is at X%", where X is whatever I have set it to using the media keys. (I am using "dunst -print" to display the desktop notifications). I then tried running alsamixer to see if disabling any of the channels would have an effect. While setting the master volume is reliable, if I try to adjust the volume settings for things like the Headphone channel, or PCM/Front/Surround/Center channels, the volume gets reset to 100% at the same time as the notifications (and popping) occurs. I have already tried disabling power_save in the snd_hda_intel driver, as well as setting the controller to N, but this has had no effect on the popping. The popping also occurs if I am playing a sound, e.g. an MP3 file, which suggests that power save is not the issue, although I may be mistaken. I also tried enabling kernel even tracing, and got a number of events with varying "power_count" values (1,2,3, never 0), and power_on=1, power_transition=0 Does anyone have any hints on how I can debug this further? Thanks! Rogan ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
