I had a ghost monitor indeed. Per's workaround from bug 2060268 worked to eliminate the ghost monitor:
""" Another Workaround: I believe this is the simpledrm driver not asking for the conflicting framebuffers to be unregistered. You can try to add "initcall_blacklist=simpledrm_platform_driver_init" to your kernel command line parameters to make sure the simpledrm driver is not loading on boot. Add to your kernel command line like this. Open your terminal: sudo nano /etc/default/grub add "initcall_blacklist=simpledrm_platform_driver_init" to where it says GRUB_CMDLINE_LINUX_DEFAULT=”quiet splash", so it looks like this: GRUB_CMDLINE_LINUX_DEFAULT=”quiet splash initcall_blacklist=simpledrm_platform_driver_init” ctrl+O for save and ctrl+X for quit. Back in the terminal write: sudo update-grub reboot This fixed the issue for me. """ Let's see if the screen works properly now -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2066126 Title: Screen glitching To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-535/+bug/2066126/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
