Arch Linux

Misha12345

Member

Registered: 2025-04-26

Posts: 3

[SOLVED] A problem with a screen resolution.

I have a GeForce GT 630 video card, installed NVIDIA-390XX-DKMS driver and the 1024x768 screen resolution does not change. In xrandr Vga is denoted as None. I am using Arch for the first time, what do I do?

Last edited by Misha12345 (2025-04-30 10:29:03)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,141

Re: [SOLVED] A problem with a screen resolution.

The "None" card is usually simple-drm interfering. Try setting on your kernel cmdline the parameter "nvidia_drm.modeset=1"

Also for general prosperity you did follow the other guidelines on the nvidia wiki article (especially with regards to disabling the kms hook and regenerating the kernel image?)

Misha12345

Member

Registered: 2025-04-26

Posts: 3

Re: [SOLVED] A problem with a screen resolution.

I entered the command "nvidia_drm.modeset=1" in GRUB, got a black screen. I found on the site that I need to enable DRM in the module settings. I got an error "modprobe: FATAL: Module nvidia_drm not found in directory /lib/modules/6.14.3-arch1-1". What should I do?

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,077

Re: [SOLVED] A problem with a screen resolution.

dkms status

The installation of the module most likely has failed.
As to why, rebuild it, post the output.
https://wiki.archlinux.org/title/Dynami … ld_modules
nb. that you'll need the linux-headers package for dkms to work.

As immediate remedy, try to use the LTS kernel (also linux-lts-headers)

Right now you're most likely blacklisting nouveau (nvidia-390xx-utils) and don't have an nvidia module, so nothing's left but the simpledrm device and nvidia_drm.modeset=1 blocks that (which is ok, as you figured, you don't want to use that thing anyway) but the consequence is that you don't have a VGA device

---

How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

Misha12345

Member

Registered: 2025-04-26

Posts: 3

Re: [SOLVED] A problem with a screen resolution.

dkms status

The installation of the module most likely has failed.
As to why, rebuild it, post the output.
https://wiki.archlinux.org/title/Dynami … ld_modules
nb. that you'll need the linux-headers package for dkms to work.

As immediate remedy, try to use the LTS kernel (also linux-lts-headers)

Right now you're most likely blacklisting nouveau (nvidia-390xx-utils) and don't have an nvidia module, so nothing's left but the simpledrm device and nvidia_drm.modeset=1 blocks that (which is ok, as you figured, you don't want to use that thing anyway) but the consequence is that you don't have a VGA device

Downloaded the linux-lts kernel, downloaded the linux headers and ran the sudo nvidia-xconfig command. Thanks, now everything works!

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,077

Re: [SOLVED] A problem with a screen resolution.

ran the sudo nvidia-xconfig command

WAAAHAHHAHAHHHHHHHahhahahhhhhhhh … … … WAAAAHAHHAHHAAAAAAAAAA … … … whaaaa!

Don't.
Remove the generated xorg.conf, it's full of cruft and will at best gloss over problems.

For posteriority: does it work on both kernels, now that you've the headers and can actually build the dkms module?

Please always remember to mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.

---

How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc