I just installed Ubuntu Mate (19.1) on a new RPi4B. All seems to work except bluetooth adapter is not found, as well as sound is not being sent to the jack, or through the HDMI. What do I need to install so my RPi4B can connect to bluetooth devices and send sound?
I think I found the answer to both of these yesterday via a google search.
I don't remember what the search phrase was.
for sound (via HDMI, but not sure about jack), insert in /boot/firmware/usercfg/txt:
[code]# Enable audio (loads snd_bcm2835)
dtparam=audio=on[/code]
later: my search was "ubuntu sound pi4 problem"
HTH
Derek
Thanks Derek, but that still doesn't work. Neither the HDMI or 3.5mm jack is pushing sound....
If that change to usercfg.txt had been effective, you should be able to see the module snd_bcm2835 loaded using lsmod.
Then check the sound settings for device and volume (this last is in 2 places). I had to increase the volume settings to hear the output. I assune you have used the speaker test facility.
Derek