I've disabled the secure boot, reinstalled plug audio, fed several different commands into the terminal, but it continues to not give any option for audio output aside from "dummy output".
After the mic and speaker output options disappeared in Configurations, leaving me with only "dummy output" as an option.
Reinstalled Pulse Audio and rebooted.
Disabled Secure Boot.
Ran tests with Dell technical support to confirm that the video and audio board and drivers are working, during boot up.
Opened the terminal and ran
sudo apt-get install pavucontrol pavucontrolthen entered configuration profile to set configuration to analog stereo out, only to find "dummy output" as the only option again.
Opened the terminal and ran
sudo alsa force-reload.
pulseaudio -k && sudo alsa force-reloadhad no effect.
BIOS -> disable audio -> boot to Ubuntu -> restart -> BIOS -> enable audio -> boot to Ubuntu did not work. I still have "Dummy output" as the only sound output option.
In accordance with instructions given on this conversation threat, I ran "inxi -Fxz && arecord -l && dmesg | grep snd" the result was: Command 'inxi' not found, but can be installed with: sudo apt install inxi
I went onto the dell site to see if I could download a new driver for the Realtek ALC3254 but the only drivers that I could find on the site are only for Windows 10.
Regarding the question about updating the bios. I dropped into the bios, audio section and headphone and speaker output are all checked as on. I am sorry but I don't understand how I would update the bios. What I see in the audio section of the bios are 3 options: bios defaults; factory settings; custom user settings. I was thinking of maybe changing to bios defaults and saving, but decided I'd better not start screwing around with bios until I know exactly what I was doing. Would that be something worth trying?
installed inxi. Ran
inxi -Fxz. It reads:
Audio: Card-1 NVIDIA Device 10fa driver: snd_nda_intel bus-ID 01:00.1
Card-2 Intel Cannon Lake PCH CAVS
Driver: sof-audio-pci bus-ID 00:1f.3
Sound: Advanced Linux Sound Architecture v: k5.0.0.-1043-oem-osp1
12 (April 12 – one month with no sound on brand new Dell G3 purchased with Ubuntu 18.04) Following Wikihow instructions on how to install a new kernel. After following steps 1-5, then typing sudo apt-get install ukuu i get a message saying it can't find ukuu
- Installed Kernel 5.5.9. Nothing changed. Still only getting dummy audio.
Dell technical support walked me through some tests to confirm that the audio board and driver is working fine, but they do not provide software support for Ubuntu.
I have now given up on Ubuntu completely. I will now move on to Mint. I have come to the conclusion that, for a lay person with average computer stills Ubuntu is incompatible with the Dell G3 and it is, therefore, a waste of time and money to purchase it with the Ubuntu installation.