Roon should display the outputs it sees as viable. From memory (I’m only 56 so that should be working reasonably well still!) it will be drop down menu top right. Scroll down to settings, audio. That should display options like:
This device (the tablet or phone used for a remote)
Connected the core (USB connections and on board sound)
Networked connections (network connected end points)
Once you identify you audio output enable it then name it. Once done you should be able to select it from your list of enabled devices or it’ll appear at the bottom of your control app screen.
Thank to all who are trying to help. I think it’s an install issue, but I can’t work out what. I’ve uninstalled and reinstalled about five times now, and the same thing happens. In the audio tab it says ‘enabling’, then all the options vanish.
My PC (the core) is a Win10 machine, i7-7700K, 32GB RAM, Nvdia GeForce 1080ti, coonected to the network by ethernet, library is onboard, and visible.
Speakers are Logitechs THX, connected by a 3.5mm plug to the PC. Sound is ex-ASUS ROG motherboard.
Hi Henry, and all who have been so helpful. It was the Realtek HD Audio drivers! They were out of date, and so were the supposedly “new” ones I replaced them with.
That threw me off track for a while, then I found some 1/19 drivers, and voila! Roon is now working perfectly.
Thanks again to all for your help.