On Sun, 2011-08-21 at 17:54 +0100, Antonio Marcos López Alonso wrote: > > It's not directly related to this message, but in 3.0 the Realtek HDA > > driver was changed to implement auto-mute. For example, if something is > > plugged into the headphone socket then speaker output (assumed to be > > line-out) should be muted. Depending on the board configuration, other > > auto-muting may occur. You may need to disable this feature. > > > > Ben. > > Hi Ben, Jonathan, > > Effectively, it seems this new auto-mute feature was the reason of the audio > gone. KMix was not showing it by default, so I added the new control in > Properties. > > No headphones or similar were plugged in to any audio output, so I suspect > there must be another issue, maybe some BIOS setting, for this feature to be > enabled and active by default. > > So thank you very much to both of you for your help, it seems this one can be > closed. If the driver is auto-muting when nothing is plugged in, that seems to be a bug which should be fixed. Can you provide the information listed under 'Reporting problems' at <http://alsa-project.org/main/index.php/Help_To_Debug_Intel_HDA>? Ben.
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