Luís Henriques wrote:
> On Wed, Mar 05, 2014 at 10:16:17PM +0100, Clemens Ladisch wrote:
>> commit 1f91ecc14deea9461aca93273d78871ec4d98fcd upstream.
>>
>> When selecting the audio output destinations (headphones, FP headphones,
>> multichannel output), unnecessary I2S channels are digitally muted to
>> avoid invalid signal levels on the other outputs.
>>
>> Signed-off-by: Roman Volkov <[email protected]>
>> Signed-off-by: Clemens Ladisch <[email protected]>
>> ---
>> sound/pci/oxygen/xonar_dg.c | 10 ++++++++++
>> 1 file changed, 10 insertions(+)
>>
>> diff --git a/sound/pci/oxygen/xonar_dg.c b/sound/pci/oxygen/xonar_dg.c
>> index 77acd79..fec8f02 100644
>> --- a/sound/pci/oxygen/xonar_dg.c
>> +++ b/sound/pci/oxygen/xonar_dg.c
>> @@ -294,6 +294,16 @@ static int output_switch_put(struct snd_kcontrol *ctl,
>> oxygen_write16_masked(chip, OXYGEN_GPIO_DATA,
>> data->output_sel == 1 ? GPIO_HP_REAR : 0,
>> GPIO_HP_REAR);
>> + oxygen_write8_masked(chip, OXYGEN_PLAY_ROUTING,
>> + data->output_sel == 0 ?
>> + OXYGEN_PLAY_MUTE01 :
>> + OXYGEN_PLAY_MUTE23 |
>> + OXYGEN_PLAY_MUTE45 |
>> + OXYGEN_PLAY_MUTE67,
>> + OXYGEN_PLAY_MUTE01 |
>> + OXYGEN_PLAY_MUTE23 |
>> + OXYGEN_PLAY_MUTE45 |
>> + OXYGEN_PLAY_MUTE67);
>> }
>> mutex_unlock(&chip->mutex);
>> return changed;
>
> It looks like kernels as old as 3.2 are affected; could you please clarify
> which stable kernels would you like to have this applied to?
All of them; this bug was there since the first version of
the xonar_dg.c file. I should have said
Fixes: 66410bfdf14f ("ALSA: oxygen: add Xonar DG support")
Regards,
Clemens
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