Please try a 5.10 kernel as well as a 5.4 kernel so we can get a better idea of which versions are affected:
https://kernel.ubuntu.com/~kernel-ppa/mainline/?C=M;O=D ** Tags added: amdgpu radeon ** Package changed: xorg (Ubuntu) => linux (Ubuntu) ** Summary changed: - AMD. Extreme slowness in xorg after upgrading to the 5.8.0-44-generic kernel (Ubuntu 20.04.2) + [amdgpu] [radeon] Extreme slowness in xorg after upgrading to the 5.8.0-44-generic kernel (Ubuntu 20.04.2) ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1916948 Title: [amdgpu] [radeon] Extreme slowness in xorg after upgrading to the 5.8.0-44-generic kernel (Ubuntu 20.04.2) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1916948/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
