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Re: Audio - Dummy Output, except for root

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On Mon, Jun 25, 2018 at 10:57 AM, Brian <ad44@cityscape.co.uk> wrote:

> On Mon 25 Jun 2018 at 09:58:29 -0500, Kent West wrote:
>
> > I recently dist-upgraded my Buster/Sid box, and lost:
> >  - networking temporarily (got it back, but not exactly sure how)
> >  -video (black screen; no obvious local terminal response, but could ssh
> > in; it's an NVidia bug apparently, worked around with
> > "slab_common.usercopy_fallback=y" added to kernel parameters at
> start-up)
> >  - audio as a normal user.
> >
> > So I've fixed the first two issues, but still have no audio when I log
> into
> > X as a normal user (or at least as my normal user; now that I think about
> > it, I'll try as a different normal user as soon as I get this email sent
> > off).
> >
> > In both X11/Cinnamon and X11/Plasma Desktop, the audio button on the
> panel
> > shows "Dummy Output" as the audio device when I log into X as my normal
> > user. I added my user to the "audio" group and logged out/in and tried
> > again; no change.
> >
> > I then Ctrl-Alt-F1'd to TT1, logged in as root, "systemctl stop sddm",
> and
> > "startx &" as root, and the DM was a simpler DM (maybe XFCE? maybe LXDE?
> it
> > wasn't obvious, at least to me), and there was not volume control on any
> > panel, so I just fired up Audacity and played a .m4v file, and audio
> worked
> > successfully.
> >
> > So audio works for root, but not for my normal user (even after being
> added
> > to the "audio" group).
> >
> > Any ideas/suggestions?
>
> A user being in the audio group is made redundant by systemd installing
> udev rules (/lib/udev/rules.d/70-uaccess.rules) and systemd-logind adding
> a locally loggedin user to the ACLs for the corresponding devices.
>
>
I read in another place that adding a user to "audio" is a bad idea,
because it doesn't really fix anything, and has the potential to break
things. Accordingly, I've removed my user from "audio".


In tinkering further, I find that when I run "alsamixer" from my normal
user account, it shows my card and chip to be "PulseAudio", and if I press
F6 to "Select sound card", I get an option of "- default" (where it's set),
"0 HDA Intel PCH", and "1 HDA NVidia". If I run "alsamixer" from my root
account, it shows my card and chip to be "HDA Intel PCH" and "Realtek
ALC269VB".

I suspect I'm on the trail to fixing my problem, but I can't figure out how
to change my default sound card. I can change it in alsamixer, but as soon
as I get out of alsamixer and then go back in, it's back to "- default".



-- 
Kent West                    <")))><
Westing Peacefully - http://kentwest.blogspot.com

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Thread

Audio - Dummy Output, except for root Kent West <westk@acu.edu> - 2018-06-25 17:00 +0200
  Re: Audio - Dummy Output, except for root Kent West <westk@acu.edu> - 2018-06-25 17:10 +0200
  Re: Audio - Dummy Output, except for root Brian <ad44@cityscape.co.uk> - 2018-06-25 18:00 +0200
    Re: Audio - Dummy Output, except for root Kent West <westk@acu.edu> - 2018-06-25 20:00 +0200
      Re: Audio - Dummy Output, except for root Kent West <westk@acu.edu> - 2018-06-25 21:40 +0200
        Re: Audio - Dummy Output, except for root Kent West <westk@acu.edu> - 2018-06-25 22:50 +0200
          Re: Audio - Dummy Output, except for root Kent West <westk@acu.edu> - 2018-06-25 23:10 +0200
            Re: Audio - Dummy Output, except for root Kent West <westk@acu.edu> - 2018-06-25 23:20 +0200
              Re: Audio - Dummy Output, except for root Kent West <westk@acu.edu> - 2018-06-26 00:00 +0200
                Re: Audio - Dummy Output, except for root Kent West <westk@acu.edu> - 2018-06-26 00:40 +0200
              Re: Audio - Dummy Output, except for root deloptes <deloptes@gmail.com> - 2018-06-26 00:40 +0200

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