[mythtv-users] and-hda-intel alsamixer has no 'Master' control

[Steve Adeff]

On Thursday 17 November 2005 18:41, Deyan Bektchiev wrote:
> Steve Adeff wrote:
> > On Thursday 17 November 2005 18:09, Kirby Bakken wrote:
> >> Steve Adeff wrote:
> >>> On Wednesday 16 November 2005 20:31, Kirby Bakken wrote:
> >>>> I have a Gigabyte GA-K8N51GMF-9 motherboard; this board has a Realtek
> >>>> ALC880 chip.  I'm also running a gentoo 2.6.13-r3 kernel.  After I
> >>>> managed to find the ALSA device driver 'package' on the Realtek site,
> >>>> and got it working, I still couldn't get any sound out of Mythtv...  I
> >>>> had the sound device set to 'ALSA:default', and the mixer to
> >>>> 'default'. I finally decided to try changing the source code in
> >>>> audiooutputalsa.cpp and change the code that was specifying 'Master'
> >>>> to instead specify 'Front'.  Lo and behold, sound now works in mythtv.
> >>>>
> >>>> I don't know how/why the alsamixer for the snd-hda-intel device I has
> >>>> a 'Front' and no 'Master' control.....  all I know is that it doesn't
> >>>> work the way it is, and my change made it work....
> >>>>
> >>>> How would I suggest to the mythtv 'development guy(s)' that this might
> >>>> be a good addition?  Or was there an easier way to fix/change what I
> >>>> had?
> >>>
> >>> the ALC880 should work fine with the regular intel AC'97 ALSA driver.
> >>> Did you use the .asoundrc that floats around? audiooutputalsa.cpp is
> >>> correct in using Master, it is more compatible with how things are
> >>> supposed to work, you then use .asoundrc to "fix" for your issue.
> >>>
> >>> Steve
> >>
> >> I understand that audiooutputalsa.cpp is correctly coded, but since I
> >> didn't (don't) know the ins/outs of alsa, and the asoundrc file, I
> >> 'patched' the code and was able to make progress...  But now that I've
> >> been shown the errors of my ways, I'd like to go 'back' to the right way
> >> of doing things... Does anyone have a sample/example asoundrc file that
> >> I can use to 'change' the interface of my snd-hda-intel sound 'mixer'
> >> from 'Front' to 'Master', or even better, to ''add' a Master that would
> >> change the level of Front, Surround, Center, and LFE?
> >
> > did you try the snd_intel8x0 driver(along with the snd_ac97 drivers)? I
> > use it with my ALC650 and ALC850 mobo's.
> >
> > as well, from what I understand, by default, the Master is the, well,
> > master volume control, with front, surround, etc all being relational
> > controls under the master control. Did you try raising the front volume
> > all the way and using master after that?
> >
> > Steve
>
> I have an ASUS mb with ALC680 and the only thing that worked for me was
> alsa 1.0.10rc2 with the 1.0.10rc1 mixer (and I just saw that 1.0.10 was
> just released yesterday...).
>
> Plus in the rc2 driver you actually have control over all channels and
> the mode of the card 6 or 8 channel.
>
> Dejan

Interesting, I just took a look at the realtek site, they provide drivers for 
their soundchips, looks like one driver package for all of them.

Do you know if their driver supports using one SPDIF port for recording and 
the other for playback simultaneously? I can't find any info on how to do 
this with the ALSA drivers.


Steve