[alsa-devel] [Regression] With the new 2.6.33 when I plug in headphones, the speakers don't turn off anymore

[Paul Menzel]

Dear Guillaume,


Am Freitag, den 26.02.2010, 10:03 +0100 schrieb giggzounet:
> 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 find it good that you attached the files, so I could produce a diff
easily. Besides some additional control elements and names the following
difference shows up.

        $ diff -u alsa-info_2.6.32.9.log alsa-info_2.6.33.log
        --- alsa-info_2.6.32.9.log      2010-02-26 10:14:01.000000000 +0100
        +++ alsa-info_2.6.33.log        2010-02-26 10:14:06.000000000 +0100
        @@ -3,7 +3,7 @@
        
        […]
        
        @@ -85,11 +85,12 @@
         
         !!Module: snd_hda_intel
                bdl_pos_adj : 32,-1,-1,-1,-1,-1,-1,-1
        +       beep_mode : 1,1,1,1,1,1,1,1
                enable : Y,Y,Y,Y,Y,Y,Y,Y
        -       enable_msi : 0
        -       id : <NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>
        +       enable_msi : -1
        +       id : (null),(null),(null),(null),(null),(null),(null),(null)
                index : 0,-1,-1,-1,-1,-1,-1,-1
        -       model : <NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>
        +       model : (null),(null),(null),(null),(null),(null),(null),(null)
                position_fix : 0,0,0,0,0,0,0,0
                power_save : 5
                power_save_controller : N
        […]

I do not know why enable_msi is set to »-1« and not one since it should
be enabled by default now [1]. Could you try to load the sound module
with `enable_msi` set to `0` and report back your findings, please.

        $ sudo modinfo snd-hda-intel
        […]
        parm:           enable_msi:Enable Message Signaled Interrupt (MSI) (int)
        […]

> I have opened a bug on the kernel bugzilla (bug 15399). Should I provide
> anything more ?

Please always provide a link I can just click on and try to put as much
reference to already existing posts as possible. This refers to the post
on Debian-eeepc-devel [2].


Thanks,

Paul


[1] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=71623855e20c3febebb5fa60528cde2592678bd5
[2] http://lists.alioth.debian.org/pipermail/debian-eeepc-devel/2010-February/003322.html
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