Hello Phil,
I am no dev nor very experienced user, however, I'd try to isolate issue.
See if alsamixer(console app) is changing in any way. If it shows all
channels and everything after the reboot - problem could be with GUI tools.
Regards
Dmitri
On Tue, May 12, 2015 at 10:24 AM, Philip Rhoades <p...@pricom.com.au> wrote:
> People,
>
> I have been using this MotherBoard for years (it is probably the most
> reliable one I have ever had):
>
> http://www.intel.com/p/en_US/support/highlights/dsktpboards/dg45id
>
> but from the beginning I had trouble with ALSA and the Line In port -
> documented here:
>
>
>
> http://mailman.alsa-project.org/pipermail/alsa-devel/2009-February/014825.html
>
> Mostly this has not been a problem since I only use the Line In port on
> infrequent occasions but it is annoying that when I do need to use it,
> sometimes, the method I have found to activate the port does not work
> and now using it seems to have permanently messed up the configuration
> for Back Mic for normal use somehow. I have installed Fedora 22 on a
> new drive (currently using 21) and booting on the new disk cures the
> introduced problem so it appears not to be permanent sound card damage
> at all and just some sort of caching or other issue. My procedure for
> getting the Line In port used to be this (although it didn't work this
> time and just caused a problem with the Back Mic):
>
> - uninstall PulseAudio (or rename /usr/bin/pulseaudio)
>
> - stop all apps auto starting that use ALSA
>
> - reboot
>
> - systemctl stop alsa-state.service
>
> - echo 0x0c 0x01813021 > /sys/class/sound/hwC0D2/user_pin_configs
>
> - echo 1 > /sys/class/sound/hwC0D2/reconfig
>
> - chmod -R 777 /dev/snd
>
> - systemctl start alsa-state.service
>
> Going through this procedure showed up new controls in xfce4-mixer and
> everything worked fine for what I wanted to do - a reboot restored the
> original setup (it could also be done with echoing the original values).
> It has been some years since I used this technique but now I can't get
> it to work and some of the new controls that show up in xfce4-mixer
> ("Capture 1", "Input Source 1")
> don't disappear with a reboot - even if I:
>
> rm .config/xfce4/xfconf/xfce-perchannel-xml/xfce4-mixer.xml
>
> !? Also, from Audacity I can now no longer select "Default" for the
> microphone and I can't get any of the other options to record . .
>
> Is anybody able to tell me what is going on? I can just starting using
> F22 on the new drive and forget about using this procedure in the future
> but I don't like not knowing why things don't work reliably . .
>
> Any useful information would be appreciated!
>
> Regards,
>
> Phil.
> --
> Philip Rhoades
>
> PO Box 896
> Cowra NSW 2794
> Australia
> E-mail: p...@pricom.com.au
>
>
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