I had the same issue while trying to upgrade to Kubuntu 24.04 or install Kubuntu 24.04 from scratch. I get a black screen at startup.
My graphic card is also an AMD GPU : Radeon RX 7800 XT. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2063983 Title: 24.04 Upgrade/Fresh Install results in black screen on reboot on AMDGPU system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2063983/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs