Tearing 940MX. There has never been such a thing and here it is again.

alexanderzhirov

I decided to switch to Mate completely, changed the distribution on my laptop. Faced with a long-standing problem - tearing.

In the past, I solved this problem by including the option in the kernel boot:

echo "nvidia-drm.modeset=1" | sudo tee /etc/kernel/cmdline.d/50-nvidia-drm.conf
sudo clr-boot-manager update

But now, as I understand it, it doesn't work.

I also tried inserting the boot into GRUB, but that doesn't work either /etc/default/grub:

GRUB_CMDLINE_LINUX="nvidia-drm.modeset=1"

 grub-mkconfig -o /boot/grub/grub.cfg

Although lsmod says that everything works:

alexander@notebook ~ $ lsmod | grep nvidia
nvidia_uvm           1617920  0
nvidia_drm             90112  4
nvidia_modeset       1290240  3 nvidia_drm
nvidia              55844864  228 nvidia_uvm,nvidia_modeset
drm_kms_helper        249856  3 drm_display_helper,nvidia_drm,i915
drm                   782336  12 drm_kms_helper,drm_display_helper,nvidia,drm_buddy,nvidia_drm,i915,ttm
video                  65536  3 ideapad_laptop,i915,nvidia_modeset

But checking the parameter says the opposite:

alexander@notebook ~ $ sudo cat /sys/module/nvidia_drm/parameters/modeset
N

Configuration parameters are also missing in the driver settings:

Maybe something has changed with the advent of a new kernel and new drivers? Is there a solution to eliminate tearing in the new configuration?

Axios

alexanderzhirov I don’t have navidia but what causes that on my machin is compiz I can’t use that
Strange you don’t have full navidia settings in the app
When on intel other than mate and I had that problem was always a config file missing

From the issue I see cropping up in forum and the reading I get the feeling kernel but who knows

alexanderzhirov

Axios In early versions of Solus, I solved this by including the parameter in the kernel boot, now it does not help 🤔

I don't understand at all why in 2023, when artificial intelligence exists, we still face basic-level problems - graphics settings?! Isn't it possible to solve this so that don't have to constantly look for some workarounds to solve the basic setup for working with a computer?!

Staudey

The nvidia-drm.modset=1 parameter should still work (does for me). Are you sure the first example (using clr-boot-manager) doesn't work for you?
Since you seem to be using GRUB, have you tried manually inserting it on boot (select the GRUB entry, press "E", add the parameter to the line of parameters, press CTRL+X to save and boot)

alexanderzhirov

Staudey Hmm... Manually adding a parameter at boot helped to get rid of tearing. Strange. Why then, when modifying GRUB through a file, does it not work for me? Am I really doing everything right?

alexanderzhirov

Is there any other way to add a parameter to GRUB? I think adding via /etc/default/grub and generating a new file /boot/grub/grub.cfg doesn't work.

Staudey

Hmm, not sure why the clr-boot-manager method doesn't work for me. It does it just fine for me, and that's on a system that uses GRUB too.

Do you get any weird errors when running sudo clr-boot-manager update ?

alexanderzhirov

Staudey No, there are no errors as such, and the download is performed without problems. It is strange that when the GRUB configuration is modified, it is not updated. Why?

Staudey

alexanderzhirov I was talking about the proper clr-boot-manager method, i.e.

echo "nvidia-drm.modeset=1" | sudo tee /etc/kernel/cmdline.d/50-nvidia-drm.conf
sudo clr-boot-manager update

I wouldn't start modifying GRUB directly, as that should be handled by clr-boot-manager too

alexanderzhirov

I added an entry immediately to /boot/grub/grub.cfg and it started working. But this is the wrong method, since when updating the kernel or GRUB itself, the boot configuration will be updated. So I think we should solve the problem anyway.

alexanderzhirov

@Staudey
Do I need to create this manually and will it be the right solution?

Staudey

alexanderzhirov Could it be that the /etc/kernel/cmdline.d/ folder doesn't exist on your system? This would cause that error and I assume prevent the config file from being created.

alexanderzhirov

Staudey Yes, I understand that. The directory does not exist. I just don't understand in which case it should exist for me? If it doesn't exist, should I manually create a directory with a configuration file and would this be the right solution to rebuild GRUB? Or do I need to install any additional packages? That's what I meant.

Staudey

alexanderzhirov I'm just double-checking because our instructions won't work if that folder doesn't exist, which is not ideal.

Creating that directory and then running the instructions again should make it work, yes. The right way to interact with GRUB is via clr-boot-manager.

alexanderzhirov

Staudey It turned out to achieve the result after creating a branch directory and a configuration file:

sudo mkdir -p /etc/kernel/cmdline.d
echo "nvidia-drm.modeset=1" | sudo tee /etc/kernel/cmdline.d/50-nvidia-drm.conf
sudo clr-boot-manager update

Staudey

alexanderzhirov Thanks for reporting back!

I've already created a PR to update our instructions accordingly, so this scenario (missing folder) is accounted for.