Thank you for your analysis and test kernel. A lot of our machines (Supermicro X11 / Xeon W-2133 based) also suffer from the problem introduced by 4.15.0-177.
I can confirm that the kernel 4.15.0-182-generic #191+lp1973167 provided by Kai-Heng Feng fixes the issue on my HW. Could you please proceed with the roll-out of this patch? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1973167 Title: linux-image-4.15.0-177-generic freezes on the welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1973167/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs