On Mon, Oct 08 2012, Takashi Iwai wrote:

At best, please give alsa-info.sh outputs at both working and non-working cases. In that way, we can see the internal states more exactly than ambiguous descriptions.

Sure! Both attached [in gzip this time to pass the list].

The diff between background-noise and no-background-noise is:

--- /tmp/alsa-info-background-noise.txt 2012-10-08 14:41:05.880816525 +0200 +++ /tmp/alsa-info-no-background-noise.txt 2012-10-08 14:42:24.700814459 +0200 @@ -3,7 +3,7 @@ !!ALSA Information Script v 0.4.61 !!################################

-!!Script ran on: Mon Oct 8 12:41:05 UTC 2012 +!!Script ran on: Mon Oct 8 12:42:24 UTC 2012

!!Linux Distribution @@ -198,7 +198,7 @@ Control: name="Beep Playback Switch", index=0, device=0 ControlAmp: chs=3, dir=In, idx=4, ofs=0 Amp-In caps: ofs=0x17, nsteps=0x1f, stepsize=0x05, mute=1 - Amp-In vals: [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80 0x80] + Amp-In vals: [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x00 0x00] Connection: 5 0x18 0x19 0x1a 0x1b 0x1d Node 0x0c [Audio Mixer] wcaps 0x20010b: Stereo Amp-In