It looks like the amdgpu kernel driver encountered errors while entering sleep:
Feb 22 06:01:35 day-oper kernel: amdgpu 0000:00:01.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0000 address=0x11665a680 flags=0x0070] Feb 22 06:01:35 day-oper kernel: amdgpu 0000:00:01.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0000 address=0x11665a720 flags=0x0070] Feb 22 06:01:35 day-oper kernel: amdgpu 0000:00:01.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0000 address=0x11665a690 flags=0x0070] Feb 22 06:01:35 day-oper kernel: amdgpu 0000:00:01.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0000 address=0x11665a730 flags=0x0070] Although I'm not sure if that's really relevant. ** Changed in: linux-hwe-5.13 (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1961608 Title: [amdgpu] Screen freeze after wake from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.13/+bug/1961608/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs