Ubuntu 20.04 will install fine on the XPS15 9560. However you will need to set nouveau.modeset=0 and disconnect any monitor connected to HDMI.
Also after 20.04 is installed, you still cannot boot when a monitor is connected to HDMI. You will stay at the Ubuntu splash screen with the spinner spinning. You can only successfully boot when the HDMI cable is disconnected, -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1874624 Title: Unable to boot 20.04 LTS installer on Dell XPS 15 9560 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1874624/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
