Hello list,
The USB sound dongle on this workstation has stopped working, but only for me.
The system settings Audio setup window detects it but no sound is heard (I nearly said none appears :) . It worked a week ago, and it still works if I log in as a new user. Windows 10 has no trouble with it either. Nothing has changed in the kernel setup, and all the right modules are loaded.
Could I have something poisonous in $HOME? I'm awfully tired of creating new user accounts for myself. And this reminds me of the problem with Konsole not shutting down properly:
1. https://bugs.gentoo.org/show_bug.cgi?id=819459 and
2. https://bugs.kde.org/show_bug.cgi?id=445862 .
A comment on [1] suggested something in my $HOME was to blame, but nothing came of it.
(The motherboard chip failed months ago, so I bought a UGreen USB dongle. System settings detects that, and the audio output of my GPU, as well as the dongle.)
--
Regards,
Peter.
On Wed, Mar 23, 2022 at 10:15 AM Peter Humphrey <peter@prh.myzen.co.uk> wrote:
<SNIP>
The machine is ~amd64 running Plasma. I log in via SDDM, but even if, instead,
I log in first and then startx I still get no sound. I haven't touched ALSA;
it's whatever Plasma wanted to support its audio process.
So by 'Plasma' you imply KDE to me. Am I correct in that?
What floors me is that two users on the same machine get different results.
Agreed but if it's KDE then generally that implies pulseaudio and users can have
different configurations. Assuming generalized KDE for the moment, then
System Settings -> Audio
should show your playback devices. Possibly the setting got switched to
an HDMI output on your video card or to the chipset sound device
and isn't USB at the moment?
HTH,
Mark
On Wed, Mar 23, 2022 at 9:50 AM Peter Humphrey <peter@prh.myzen.co.uk>wrote:
The USB sound dongle on this workstation has stopped working, but only for me. The system settings Audio setup window detects it but no sound is
heard (I nearly said none appears :) . It worked a week ago, and it still works if I log in as a new user. Windows 10 has no trouble with it
either. Nothing has changed in the kernel setup, and all the right
modules are loaded.
Please provide info about your setup such as desktop environment and
how you set up your sound system. ALSA? pulseaudio? Something else?
The machine is ~amd64 running Plasma. I log in via SDDM, but even if, instead,
I log in first and then startx I still get no sound. I haven't touched ALSA; it's whatever Plasma wanted to support its audio process.
What floors me is that two users on the same machine get different results.
On 23/03/2022 17:20, Mark Knecht wrote:
So by 'Plasma' you imply KDE to me. Am I correct in that?
Yes and no ...
To a rough approximation, KDE is Qt4. Plasma is Qt5.
I don't really get it myself.
Cheers,
Wol
So by 'Plasma' you imply KDE to me. Am I correct in that?
Interesting. Having moved to Kubuntu it's just Kubuntu to me, and it's
what I don't like about becoming primarily a Kubuntu user as you end
up much more 'detached' from all this stuff. However my important apps
also 'just work' and vendors provide answers which they seldom did
when I was running Gentoo.
On 23/03/2022 20:31, Mark Knecht wrote:
Interesting. Having moved to Kubuntu it's just Kubuntu to me, and it's
what I don't like about becoming primarily a Kubuntu user as you end
up much more 'detached' from all this stuff. However my important apps
also 'just work' and vendors provide answers which they seldom did
when I was running Gentoo.
I guess that's because there's only one Kubuntu. The snag is every
gentoo is one of a kind ... :-)
Cheers,
Wol
<hehe> Yeah, ain't that the truth! I'd likely be a Gentoo user if anyone built and maintained a 'standard', stable distro, something delivered[snip ...]
in primarily binary files.
On 23/03/2022 20:31, Mark Knecht wrote:
Interesting. Having moved to Kubuntu it's just Kubuntu to me, and it's
what I don't like about becoming primarily a Kubuntu user as you end
up much more 'detached' from all this stuff. However my important apps
also 'just work' and vendors provide answers which they seldom did
when I was running Gentoo.
I guess that's because there's only one Kubuntu. The snag is every
gentoo is one of a kind ... :-)
Cheers,
Wol
I still have a bit of my gentoo-users folder going back a few years.
One of the older threads I saved was actually talking to Peter in
2005. I built my first Gentoo machine in 2001, about a year after
Daniel started the distro. Kudo's to Peter for making it this far!
I'm about to try pavu[...] as you suggested.
[...] if it's KDE then generally that implies pulseaudio and users can
have different configurations.
On Thursday, 24 March 2022 09:43:49 GMT Peter Humphrey wrote:Just to confirm - pavucontrol shows the sound device as properly
I'm about to try pavu[...] as you suggested.
No dice. All that does is to allow me to set where I want each sound
source to
be sent, plus a few details. I still hear nothing, and pavumeter
shows nothing
being output.
I still can't escape the conclusion that something in my home
directory is
interfering with sound output.
System Settings -> Audio
should show your playback devices. Possibly the setting got switched to
an HDMI output on your video card or to the chipset sound device
and isn't USB at the moment?
As I said, I do see all three sound devices there. I can switch them each on and off, and assign the kind of output I want from them. I do that, and using the Test buttons I hear nothing.
--
Regards,
Peter.
The USB sound dongle on this workstation has stopped working, but only for me.
The system settings Audio setup window detects it but no sound is heard
On Thu, Mar 24, 2022 at 2:35 AM Peter Humphrey <peter@prh.myzen.co.uk>
wrote: <SNIP>
System Settings -> Audio
should show your playback devices. Possibly the setting got switched to an HDMI output on your video card or to the chipset sound device
and isn't USB at the moment?
As I said, I do see all three sound devices there. I can switch them each on and off, and assign the kind of output I want from them. I do that,
and using the Test buttons I hear nothing.
--
Regards,
Peter.
Sorry, if that was actually in the original post I just didn't understand.
Jack's response to you was more complete and duplicates my thinking
about how to approach debugging.
To answer one of your earlier questions, but I doubt it applies in the
case of a simple USB sound device, it is possible for other programs
to program certain sound cards in ways that Alsa & pulseaudio would
not know about. I've used an RME HDSP9652 studio sound card
for about 15 years. It has 52 inputs, 52 outputs and lots of internal hardware routing that general Linux sound doesn't know about and
cannot control. It's configured using two apps (hdspconf and
hdspmixer) to do a lot of special things that are recording studio
specific. At times I've misused these programs and had a lot of
mysterious problems. That said I think it's very unlikely anything
like this applies in your case, but technically it's possible.
Good luck getting this solved. Weird stuff.
Mark
On 23/03/2022 18:50, Peter Humphrey wrote:
The USB sound dongle on this workstation has stopped working, but only for me. The system settings Audio setup window detects it but no sound isRun "alsamixer" (it's a command-line tool) and in the text UI that
heard
appears, press F6, select your USB audio device, and then check if it's
muted or the volume is 0.
PulseAudio generally uses the ALSA sound mixer to change volumes, but
not always. For some devices, it uses a software volume control that
doesn't use the ALSA volume controls. So if those are set to 0, there
will never be any sound.
The USB sound dongle on this workstation has stopped working, but only for me. The system settings Audio setup window detects it but no sound is heard (I nearly said none appears :) . It worked a week ago, and it still works
if I log in as a new user. Windows 10 has no trouble with it either.
Nothing has changed in the kernel setup, and all the right modules are loaded.
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