On Sun, 5 Feb 2012 09:21:56 -0600 Jonathan Nieder <[email protected]> wrote:
> Sorry for the lack of clarity. These symptoms are indeed expected to
> affect many laptops with an ALC861 codec, not just Asus laptops. The
> problem is that different machines use a different mechanism to turn
> on or off sound completely. The driver has a table that documents
> this sort of thing for (1) all ASUS laptops (after the fix to
> bug#657302), (2) Haier W18, (3) FSC Amilo Pi1505.
>
> So, the next step is to work with upstream to get the pin routing
> information for your laptop. I'll send some hints on this in a
> separate message.
It might not matter, but my current system, correctly identified by
'alsa-info.sh' as an "HP Compaq dx2200 MT", is a Desktop box, not a
laptop. The sound card is part of the mobo, however, which is somewhat
laptop-like. More here:
Manuals (guides, supplements, addendums, etc)
HP Compaq dx2200 Microtower PC
http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=SupportManual&lang=en&cc=us&prodSeriesId=1844701&prodTypeId=12454
To fetch pin routing data via 'hda-verb' requires recompiling the
kernel. This week I haven't enough time to build a kernel.
(Bandwidth=dialup.) Pity there isn't a simpler method; even using a
multitester on the mobo would be less hassle than rebuilding the kernel.
Searching the web for 'HP Compaq dx2200 MT "hda-verb"' finds some kernel module
patch notes from 2007:
[ALSA] hda-codec - Add quirks for HP dx2200/dx2250
HP dx2200 and dx2250 use Micro-Star International (MSI) motherboards
(models MS-7254 and MS-7297 respectively) with an ALC862 codec in
threestack configuration. Adding this quirk allows correct 5.1 sound
output in these systems.
Signed-off-by: Claudio Matsuoka <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
Signed-off-by: Jaroslav Kysela <[email protected]>
http://www.codebrowse.net/history/linux-3.0/sound/pci/hda/patch_realtek.c
Sound on this box with my previous stock Debian kernels worked. Today
I reverted to 'linux-image-3.1.0-1-686-pae', under which the
sound still works fine. Attached are the outputs of 'alsa-info.sh' for
the the downgraded (good sound 3.1.0-1) kernel, and the newer (no sound
working 3.2.0-1) kernel.
As advised I've CC:'d this email upstream, for whom the relevant Debian
bug reports can be found here:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=657302&archived=False&mbox=no
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=658728&archived=False&mbox=no
HTH...
HP DX2200 MT alsa data.tar.bz2
Description: Binary data
