http://bugzilla.opensuse.org/show_bug.cgi?id=999720 http://bugzilla.opensuse.org/show_bug.cgi?id=999720#c1 Takashi Iwai changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |me@xto.de Flags| |needinfo?(me@xto.de) --- Comment #1 from Takashi Iwai --- Please give alsa-info.sh output. Run the script with --no-upload option and attach to Bugzilla (don't paste). At best, take alsa-info.sh outputs at both good-working and bad-working times, so that we can see whether there is any difference. -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=999720 http://bugzilla.opensuse.org/show_bug.cgi?id=999720#c3 --- Comment #3 from Takashi Iwai --- Thanks. As a possible workaround, try to disable "Loopback Mixing" mixer element: % amixer -c0 set "Loopback Mixing" Disabled It's often the cause of such background noise, and the functionality is rarely demanded. -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=999720 http://bugzilla.opensuse.org/show_bug.cgi?id=999720#c5 --- Comment #5 from Christian Lorch --- linux-gel8:~ # amixer -c0 set "Loopback Mixing" Disabled Simple mixer control 'Loopback Mixing',0 Capabilities: enum Items: 'Disabled' 'Enabled' Item0: 'Disabled' tried your workaround. I cannot hear background noise anymore, normal music/sound ist working! -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=999720 http://bugzilla.opensuse.org/show_bug.cgi?id=999720#c7 --- Comment #7 from Takashi Iwai --- Check whether it happens with the direct playback, e.g. % pasuspender -- aplay -Dplughw foo.wav Also, it's worth to check whether passing snoop=0 option to snd-hda-intel module makes any difference. Try to create a file in /etc/modprobe.d/*.conf containing a line options snd-hda-intel snoop=0 -- You are receiving this mail because: You are on the CC list for the bug.