** Description changed: + [ Impact ] + Backport the Nvidia/SimpleDRM kernel 6.11 fix for phantom displays. This is a continuation of bug 2060268 where kernel 6.11 was found to require a different fix from that shipped for 6.8. Update: 6.8.0-51 has regressed in the same way as 6.11 did. + + [ Test Plan - Nvidia desktop ] + + 1. Set up a DESKTOP where the only GPU enabled is an Nvidia one. + 1. Apply all updates and verify that the running kernel is 6.8.0-51 or later + 2. Open the 'Additional Drivers' app to install a supported Nvidia driver. + 3. Reboot and verify the Nvidia driver is now active (lspci -k should mention 'nvidia' and not 'nouveau'). + 4. Log-in to a GNOME Xorg session + 5. Open Settings and verify the only monitors shown are your real monitors. + 6. Log-in to a Wayland session + 7. Open Settings and verify the only monitors shown are your real monitors. + + [ Regression Test Plan - Nvidia Hybrid graphics ] + + 1. Set up a machine with Nvidia hybrid graphics (one discrete Nvidia GPU and one Intel/AMD integrated GPU) + 2. Apply all updates and verify that the running kernel is 6.8.0-51 or later + 3. Open the 'Additional Drivers' app to install a supported Nvidia driver. + 4. Reboot and verify the Nvidia driver is now active (lspci -k should mention 'nvidia' and not 'nouveau'). + 5. Verify that `ls /dev/dri/card*` lists exactly two files. + + [ Regression Test Plan - Intel/AMD graphics ] + + 1. Set up a machine with integrated graphics only. + 2. Apply all updates and verify that the running kernel is 6.8.0-51 or later + 3. Verify that you are able to log into the Ubuntu Desktop Wayland session. + 4. Run `apt install nvidia-driver-535`. + 5. Reboot. + 6. Verify that you are able to log into the Ubuntu Desktop Wayland session. + + [ Regression Test Plan - Virtual machines ] + + 1. Set up a virtual machine without any graphics acceleration (vmware, virtio...) + 2. Apply all updates and verify that the running kernel is 6.8.0-51 or later + 3. Verify that you are able to log into the Ubuntu Desktop Wayland session. + 4. Run `sudo apt install nvidia-driver-535`. + 5. Reboot. + 6. Verify that you are able to log into the Ubuntu Desktop Wayland session. + 7. Optionally go back to point 4, and try with nvidia-driver-550. + + [ Regression Test Plan - Nvidia+LUKS ] + + 1. Set up a desktop machine (not a laptop) with an Nvidia GPU and encrypted disk. + 2. Apply all updates and verify that the running kernel is 6.8.0-51 or later + 3. Open the 'Additional Drivers' app to install a supported Nvidia driver. + 4. Reboot + 5. Verify that you see the password prompt for decrypting the disk. + + [ Where problems could occur ] + + Removing the simpledrm card is only safe when it's not being used. If + somehow a machine wasn't using the installed Nvidia driver then there + could be a risk of deleting the only working display. + + One case where this could happen is if the Nvidia driver would allow + being loaded even without any nvidia hardware present: if that is the + case, "Regression Test Plan - Virtual machines" would fail.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2083329 Title: Backport the Nvidia/SimpleDRM kernel 6.11 (and 6.8.0-51) fix for phantom displays To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-drivers-common/+bug/2083329/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
