Installed Ubuntu Server 20.04, Mate desktop, light-dm on a Raspberry Pi4. It runs great Added Cinnamon desktop, but it runs only in software rendering mode. How do I get it to run cinnamon using the gpu? At log in I can select Mate, Cinnamon or Cinnamon(Software Rendering). Both cinnamon options run...

Thanks for your reply fruitoftheloom.
I don't know what happened. Stepped away from Pi 4 to compose my post. When I got back the "OS Installed Successfully" OK button was there, about twenty minutes later. Everything is working OK now.

Total newbie to Raspberry Pi, first post. I have a Raspberry Pi 4 with 4 GB ram Followed the setup procedure https://projects.raspberrypi.org/en/projects/raspberry-pi-setting-up/4 It gets stuck at 100% . The "OS Installed Successfully" OK button never pops up. Pi setup.png How should I proceed? Than...