I have a Lenovo ThinkPad T15 with AMD Ryzen 4500 with Radeon graphics too, and got the same issue.
This happened to me: - I bought the laptop brand new with no OS installed (per my request) - When I got it, I created a bootable USB stick with Kubuntu 2021.10 (Image that I got from the official page) - Kubuntu never started (I did get the menu from the USB stick though), and I tried both USB ports. - I try to boot with the recovering/safe mode and I see that error. - So I instead format the USB stick to have the bootable version 2021.04 of Kubuntu. - Kubuntu started and I was able to "Try Kubuntu" and install it. - Once the installation was done, I update all available updates and upgrade Kubuntu to 2021.10 from the console. - After restart, Kubuntu never started: recover mode showed the same error I got with the USB (which is the one reported here). So if the other Lenovo ThinkPad with Intel setup was able to boot Kubuntu from USB Stick with no error, I assume it has to do with the AMD setup. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1947623 Title: Kernel Panic for Ubuntu 21.10, kernel 5.13.0.19.30 and Thinkpad E14 AMD To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1947623/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
