With my Dell Latitude 7490 running kernel 5.13.0-22 on Ubuntu 21.10, it freezes around the login screen.
However, if I boot with my dock (Dell WD15) connected, it seems to work fine. Until I disconnect the dock... then it freezes a few seconds after. I tried both of these mainline versions: https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.14.21/amd64/ https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.15.6/amd64/ I get the same behavior.. only works with dock connected. I attached the output of "journalctl -k -b -1" for the 5.15.6 boot without dock. ** Attachment added: "journalctl -k -b -1 for mainline kernel 5.15.6 without dock connected" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1939347/+attachment/5544902/+files/journal-5.15.6.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939347 Title: Ubuntu 20.04 freeze since kernel 5.11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1939347/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs