Geoffrey Leach wrote:
> > Using bluetooth on Fedora 40/xcfe4 for the first time
> > 
> > Headphone pair OK
> > Bluetooth is active and running
> > Bluetooth Manager sees headphones
> > Volume Control  does not see the headphones
> > 
> > Testing with mplayer foo.mp3; sound at speakers
> > 


On Sat, 2024-07-20 at 13:10 -0700, Paolo Galtieri wrote:
> I'm running F39 and I can't get any Bluetooth devices to work.  
> Bluetooth speakers used to work, but now neither speakers nor
> headphones work.  They do work with Android phone and tablet.
> 


Educated guess:  A missing CODEC?

Bluetooth sound sends compressed audio, with varying types of CODECs
and degrees of quality (some dire).  During connection, some
negotiation is done to see what's supported, and hopefully pick the
best option.  Sometimes you get user-controllable configurations to
choose which.

Also, some Bluetooth equipment is only meant for phone calls, and
doesn't appear as supported music playing resource (though I doubt
that's the problem in this situation).

I'd be looking through system logs to see what happens when you try to
connect, there may be a useful error message.

NB:  I don't have Bluetooth hardware on my PCs, only an ancient laptop
with Mint, and a Mac.  So can only offer that generic information.
 
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