It appears the 'amdgpu' kernel driver is crashing. That is part of the kernel package 'linux'.
** Tags added: amdgpu ** Summary changed: - No display activity when coming out of powersave ("kernel BUG at mm/slub.c:296!") + [amdgpu] No display activity when coming out of powersave ("kernel BUG at mm/slub.c:296!") ** Package changed: xorg (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1831599 Title: [amdgpu] No display activity when coming out of powersave ("kernel BUG at mm/slub.c:296!") To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1831599/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs