Updating from kernel 6.5 to 6.6 broke wayland multi monitor setup

Akam · March 18, 2024, 8:28pm

Doing a “already known” sanity check since I haven’t updated in a while. Current config is here.

Been using wayland for a while now since it “just works” (or did work) for my external monitor needs with my laptop (Lenovo Legion 5 Pro 16ACH6H 5800H 3070m). When I update my kernel from 6_5 to 6_6 then the external display is no longer active/detected under wayland, which I have less experience troubleshooting with.

github.com

4JX/nixos-config/blob/a7ea5c3f27effba1e50a1b2f96d20130cea0577c/hosts/terra/boot.nix#L4


      
          { pkgs, config, ... }: {
            # Use the grub bootloader.
            boot = {
              kernelPackages = pkgs.linuxKernel.packages.linux_6_5;
              blacklistedKernelModules = [ "nouveau" ];
              # extraModulePackages = with config.boot.kernelPackages; [ lenovo-legion-module ];
          
          
    loader = {
                efi = {
                  canTouchEfiVariables = true;
                  efiSysMountPoint = "/boot/efi";
                };
                grub = {
                  enable = true;

X still works “fine”, though it is overall wonky-er without switching to using the NVIDIA GPU with a specialisation.

journalctl -f does not appear to print out any logs if I disconnect and re-connect the display while on the broken kernel version, while on the working 6.5 one GNOME seems to at least react to disconnects.