The same bug affects me. I use a Lenovo ThinkPad T14 Gen 2 AMD laptop, with Ryzen 5 PRO 5650U processor.
Ubuntu 22.04 fails to boot after the update (by the Software Updater application) on Friday 2024-12-20 to kernel Linux 6.8.0-50-generic on my laptop. A black screen with blinking cursor appears after booting. Ctrl-Alt-Delete changes this to a Lenovo and Ubuntu logo, and triggers a restart. The same happens during each new boot to the now default kernel. Selecting the old Linux 6.8.0-49-generic kernel during boot results in a successful boot and fully functional system, but any attempt with 6.8.0-50-generic fails. When booting with with 6.8.0-50-generic, the following error message appears in the log files: " org.gnome.Shell.desktop[1547]: Failed to setup: No GPUs found ". -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2092703 Title: Ubuntu 22.04 fails to start after kernel update to 6.8.0-50 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2092703/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs