SDDM not loading automatically

[dimesio]

I am on openSUSE Leap 15.4 using KDE, and the nvidia 525.89.02 proprietary driver . I’ve been using it for months with the graphical login, but as of today, I’m booting to a command prompt login. I can login in at the command prompt, and if I then run sudo systemctl start sddm, I will get the graphical login and am able to log into KDE from it.

I had this problem once before, and solved it that time by setting splash=nosilent in Grub2; that parameter is still set. I have tried adding plymouth.enable=0, but that made no difference.

I am at runlevel 5 when I get the command line login, and systemctl get-default returns graphical.target, so it should be loading SDDM automatically (as it used to). Any ideas? I’d rather not have to login twice.

[arvidjaar]

@dimesio

Any ideas?

Reboot, capture full output as root of

journalctl -b --full --no-pager

and upload to https://paste.opensuse.org/, post link here.

[dimesio]

journalctl output is at openSUSE Paste

I did manage to figure out that running startx after logging into the console will start KDE without my having to log in twice, but I still want to figure out why it’s not starting on its own.

[arvidjaar]

SDDM was started but failed to launch X server. May be due to

Dec 25 11:06:11 rivendell kernel: [drm:drm_set_master [drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000600] Failed to grab modeset ownership
Dec 25 11:06:11 rivendell kernel: [drm:drm_set_master [drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000600] Failed to grab modeset ownership
Dec 25 11:06:11 rivendell kernel: [drm:drm_set_master [drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000600] Failed to grab modeset ownership

May be it is familiar to someone. I vaguely remember seeing these messages but cannot tell right now what could be the reason.

You could try

Solution to nvidia-drm Failed to grab modeset ownership

I’m writing this thread so that other users having the same problem can find a solution(took me alot of searching to find one) Problem: Display managers or Desktop environments fail to launch the user is presented with a black screen and when they try to run startx or sddm as root they are greeted with the following message: “nvidia-drm Failed to grab modeset ownership” Solution: The solution is quite simple, i managed to get it working again by modifying the grub configuration, to do this ex…

[hui]

@dimesio

I am on openSUSE Leap 15.4 using KDE, and the nvidia 525.89.02 proprietary driver

Is there a reason for this old driver?
Actual is nvidia-drivers-G06-545.29.06-lp154.18.1.x86_64.rpm

Do you use Wayland or X11?

[dimesio]

I tried adding nvidia-drm.modeset=1 as that thread suggests, but it made no difference.

[dimesio]

I use X11, and the nvidia driver version is the one that got installed when I installed the system. It’s been working, so I haven’t upgraded.

[hui]

That means you never updated this system? It is recommended to keep a system up to date, mainly for security reasons but also for bugfixes and stability improvements…

[dimesio]

Upgrading the nvidia driver fixed it. I’m still puzzled as to why it suddenly stopped working, because I hadn’t made any changes to the system. I guess I’ll just have to live with the mystery. Thanks for your help.

[hcvv]

And please upgrade to Leap 15.5. 15.4 goes out of support one of these days.
https://en.opensuse.org/Lifetime

[arvidjaar]

@dimesio

but as of today, I’m booting to a command prompt login.

And what changed before that? Did you install some updates or some packages or made any changes to your system?

What is the output of

systemd-cgls

immediately after you log in on the console before you start GUI?