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On 2020/07/22 02:56 AM, Janek Stolarek wrote:
> I'm setting up TDE-based Debian on a new machine and I've run into a problem I have not experienced on any other of
> my machines with similar configurations: KMix can't control audio volume. More specifically, I have two audio
> outputs: an HDMI one (via nVidia card with proprietary drivers) and a front panel audio jack. Sound works correctly
> on both outputs and I can control it with pavucontrol (PulseAudio sound mixer). However:
>
> 1. KMix master slider that appears after clicking on the tray icon does absolutely nothing. 2. When I open the
> mixer window in KMix it recognizes PulseAudio as an audio device. There is just one volume slider and it does
> nothing. 3. Another recognized audio device is HD-Audio Generic. This has a bunch of output sliders and the sliders
> work correctly (i.e. they change the volume) when the sound is directed to headphones, but not when it's directed
> to HDMI (output change done via pavucontrol). 4. The final audio device recognized by KMix is HDA Nvidia. This only
> has seven toggles labales IEC958. First toggle mutes/unmutes the sound, the remaining ones don't seem to be doing
> anything.
>
> I'm puzzled. This is the first time I see KMix master slider not working at all, even though I have pulseaudio set
> up on all my other machines with TDE. Any thoughts or suggestions?
>
> Janek
>

Hi Janek,
first of all what version of TDE are you using? R14.0.8 official? R14.0.9 PSB? R14.1.0 PTB?
There were various issues in KMix up to R14.0.8 and what you described is not so unfamiliar to me.
R14.0.9 will have several fixes for that and since you are using Debian, PSB will have those fixes already available.
R14.1.0 will have further fixes, again PTB makes them already available.

Cheers
  Michele
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