[alsa-devel] [Regression] With the new 2.6.33 when I plug headphones, the speaker doen't get off anymore

[giggz]

giggz a écrit :
> giggzounet a écrit :
>> Hi,
>>
>> I have installed debian stable lenny + backports on an eeepc 1201n. With
>> the 2.6.30 or 2.6.32 from lenny-backport I don't have problem with sound
>> : when I plug the headphones, speakers get off.
>>
>> I have tested with 2.6.33 and when I plug headphones, speakers don't get
>> off anymore. so I have sound in headphones and speakers.
>>
>> 22:42 giggz at baal ~ % cat /proc/asound/card0/codec#* | grep Codec
>> Codec: Realtek ALC269
>> Codec: Nvidia MCP7A HDMI
>>
>> I attach the output of alsa-info with the 2.6.32.9 and the 2.6.33 (I'm
>> in a Uni Campus and it's quite difficult to have internet on a external
>> laptop...so I attach them at this mail and I don't upload them on pastbin).
>>
>> I have opened a bug on the kernel bugzilla (bug 15399). Should I provide
>> anything more ?
>>
> 
> Following the advice of Paul Menzel I did a "diff" of the sources of the
> 2.6.32.9 kernel and of the 2.6.33. In patch_realtek.c, we see that there
> is an new snd_hda_jack_detect funtion with 2 arguments. I have noticed
> that the second argument is "normaly" the second argument of
> snd_hda_codec_read. In the alc269_speaker_automute function there is
> this new snd_hda_jack_detect function, but the second argument is "nid".
> But in the old alc269_speaker_automute of the 2.6.32.9 the second
> argument of snd_hda_codec_read is 0x15. So I think there is perhaps a
> bug here...But I hesitate to modify the source...so I'm waiting the
> anwser of the dev.
> 
> --- patch_realtek.c	2010-02-27 14:58:06.000000000 +0100
> +++ patch_realtek_modif.c	2010-02-27 14:58:54.000000000 +0100
> @@ -13381,7 +13381,7 @@
>  	unsigned int present;
>  	unsigned char bits;
> 
> -	present = snd_hda_jack_detect(codec, nid);
> +	present = snd_hda_jack_detect(codec, 0x15);
>  	bits = present ? AMP_IN_MUTE(0) : 0;
>  	snd_hda_codec_amp_stereo(codec, 0x0c, HDA_INPUT, 0,
>  				AMP_IN_MUTE(0), bits);
> 

I tested it. And with this modif in the kernel, after recompilation and
reboot, my problem is headphones and speaker is gone.

Best regards,
Guillaume