Hi Chis Chiu, I had a similar issue here with all kernels after 5.8.0-63-generic. I found this bug report and just finished trying your suggestion I'm pleased to tell you that at least in my Dell notebook it worked. The as previously reported the issue only happens after login into the X env.
If I can provide any extra detail please let me know. Kind regards. -- 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
