I have a similar bug on my pc with Ubuntu 21.10 after an upgrade to 5.13.0-23 with an AMD Ryzen 3200G. Although in my case, my external monitor goes to sleep when booting this Kernel version and cannot be woken up.
Fortunately, I can boot the system with the previous version 5.13.0-19 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1956396 Title: kernel 5.13.0-23 extremely slow boot on AMD proc/graphics To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1956396/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
