Disabling Wayland

[otoman]

Hello again,

In my pursuit of convenience, I've stumbled upon another issue while setting up a desktop environment for everyday use on my Proxmox server. Thanks to the community, I was able to fix issues with my configuration so that I can run MATE desktop successfully on my integrated Alder Lake GPU. However, I've just discovered new weird issues.

So I'm using NoMachine to connect to my VMs and am having issues where not all my keys are grabbed by NoMachine despite correct settings. After a lot of Googling around, I found the post saying the issue is Wayland with instructions on how to disable it and force the system to use Xorg. However, when I disable Wayland, the XServer won't start at all again. I've tried installing lightdm, sddm, xdm, wdm without any success. The only DM I can get any results on is GDM3 and only with Wayland enabled.

I'm visually impaired so I'm heavily reliant on the keyboard and not having all keypresses go through is really limiting.

Please help me figure out what I'm doing wrong here. I tried all the solutions I could find without success.

All other DMs just crash.

Thanks in advance.

otoman

 

[Stoiko Ivanov]

Recently ran into a similar issue - for me it was forgetting to install `xorg` (none of the display managers have a hard dependency on it).

Additionally with GDM - you can select which session to start after providing the user-name (the gear-symbol for settings below the user name entry). - there you can select e.g. gnome with X or gnome with wayland

I hope this helps!

 

[otoman]

I tried everything but can't log in with anything other than GNOME + Wayland. Everything else (System X11,Gnome Classic, Gnome on Xorg, MATE, Window Maker, Default Xsession) just puts me back onto the login screen. I've tried reinstalling Xorg and everything so it's definitely there.

Any suggestions?

 

[Stoiko Ivanov]

I've tried reinstalling Xorg and everything so it's definitely there.

Any suggestions?

I'd suggest to check the logs of one of the failing sessions (journal, /var/log/Xorg.0.log, the log of gdm...) and see if it shows where the problem is rooted

 

[otoman]

So I was checking the logs and couldn't make sense of it. Was about to post logs here, but then I had a NoMachine update which seems to have fixed the issue so I don't really need Xorg at the moment.

If someone's interested I can cat out the logs though.

 

[senomoto]

I need to use teamviewer, but without Wayland. As Otoman tried, I can't disable Wayland too, I tried many Display options on Proxmox without success.
The only configuration I can put to run on PRoxmox 8.2, is using a xserver-xorg-video-dummy on Ubuntu 24.04 with headless configuration, on Proxmox -> Hardware -> Display, -> Vmware or none.
I suggest to

1. Install Ubuntu normally with default or VGA Display option as VM on Proxmox;
2. Install Teamviewer, anydesk, nomachine, etc and set the unattended password;
3. Install xserver-xorg-video-dummy and openssh-server ;
4. Disable wayland on /etc/gdm3/custom.conf ;
5. Create a /etc/X11/xorg.conf like that:

   Section "Device"
          Identifier  "Configured Video Device"
           Driver      "dummy"
           VideoRam    16384
   EndSection
   
   Section "Monitor"
           Identifier  "Configured Monitor"
           HorizSync   5.0 - 1000.0
           VertRefresh 5.0 - 200.0
           Modeline "1920x1080" 23.53 1920 1952 2040 2072 1080 1106 1108 1135
   EndSection
   
   Section "Screen"
           Identifier  "Default Screen"
           Monitor     "Configured Monitor"
           Device      "Configured Video Device"
           DefaultDepth 24
           SubSection "Display"
                    Viewport 0 0
                    Depth 24
                    Virtual 1920 1080
           EndSubSection
   EndSection

6. Poweroff the VM;
7. On Proxmox -> VM -> Hardware -> Display change to NONE or VMWARE;
8. Start the VM. The Proxmox console will not work anymore if you choose None on Display;
9. If you found a problem to access via Teamviewer, etc, make ssh to the VM and check/fix the issue.