It sounds like the Nvidia driver is not happy with the new kernel. Please try booting an older kernel or forcefully reinstalling the Nvidia kernel driver:
sudo apt install --reinstall nvidia-dkms-460 and then reboot. You can also find other kernels to test at https://kernel.ubuntu.com /~kernel-ppa/mainline/?C=M;O=D -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1919285 Title: Nvidia resolution is stuck at 640x480 since kernel 5.8.0-45.51~20.04.1-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.8/+bug/1919285/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
