@Naresh: see my comment #4, asking if you are running Ubuntu Desktop. dmesg doesn't tell me that - but an sosreport would, if you can attach that.
We've recently hit this on an x86 server, and did tie that back to the system having a desktop installed (Nvidia CUDA 11 somehow brings in gdm as a dependency), so I'm still suspecting the same here. ** Also affects: gdm3 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1862559 Title: ubuntu 19.10: unresponsive/freezes on ThunderX2 if system is idle for ~22min To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1862559/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs