I have the same issue on my Dell XPS 15 9560. As soon as the graphical interface would start, the system either shuts down or freezes completely.
However, it does work if I boot Ubuntu in "safe graphics" mode, but this way changing the display brightness and connecting external displays don't work. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1874624 Title: Unable to boot 20.04 LTS installer on Dell XPS 15 9560 Status in linux package in Ubuntu: Confirmed Bug description: I try to install the stable released Ubuntu 20.04 LTS (20.04 LTS) on Dell XPS 15 9560 using USB stick. The system power off at 6% of Check Disk. Also if I jump the check Disk system power off. The same USB disk work on a older Dell Latitude. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1874624/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp