Graphic glicht in debian with nvidia-driver

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Graphic glicht in debian with nvidia-driver

Postby Teodoro777 » 2020-10-02 11:10

Hi, i'm trying Debian stable (then also testing), but installing the drivers for my Nvidia GeForce 950m (with the command "apt install nvidia-driver"), the screen sporadically does graphical glitches. These consist of flickering, until I move the mouse abruptly. I tried to migrate from xorg to wayland, but the latter is blocked by default when installing proprietary drivers. Thi problem persists also reinstalling the nouveau open source driver. So, what can this depend on?
Ps there aren't hardware problem, because with windows, it worked fine.
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Re: Graphic glicht in debian with nvidia-driver

Postby sunrat » 2020-10-02 11:19

Try installing firmware-misc-nonfree
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Re: Graphic glicht in debian with nvidia-driver

Postby Teodoro777 » 2020-10-02 12:47

Thanks for the reply. I already installed firmware-misc-nonfree
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Re: Graphic glicht in debian with nvidia-driver

Postby stevepusser » 2020-10-06 02:30

Debian needs more than just the nvidia-driver package! Did you follow the wiki in every step and install kernel headers and compilers, which are essential to build the driver? Did you carefully follow the output of installing nvidia-driver to make sure it succeeded, or ignore all the technobabble that flew by?

Those are issues that are very very common, so I'm not just guessing here.
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Re: Graphic glicht in debian with nvidia-driver

Postby LE_746F6D617A7A69 » 2020-10-06 10:36

It's an Nvidia GeForce 950m -> "M" means mobile version -> most likely this is an optimus laptop.
https://wiki.debian.org/NVIDIA%20Optimus
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Re: Graphic glicht in debian with nvidia-driver

Postby stevepusser » 2020-10-06 19:07

LE_746F6D617A7A69 wrote:It's an Nvidia GeForce 950m -> "M" means mobile version -> most likely this is an optimus laptop.
https://wiki.debian.org/NVIDIA%20Optimus


Well, yes, there's lot's of missing information that's relevant to the issue. :(
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Re: Graphic glicht in debian with nvidia-driver

Postby Teodoro777 » 2020-10-18 00:59

stevepusser wrote:Debian needs more than just the nvidia-driver package! Did you follow the wiki in every step and install kernel headers and compilers, which are essential to build the driver? Did you carefully follow the output of installing nvidia-driver to make sure it succeeded, or ignore all the technobabble that flew by?

Those are issues that are very very common, so I'm not just guessing here.


I followed this guide https://wiki.debian.org/NvidiaGraphicsDrivers
And in fact if I want to use an app with Nvidia video card, I can do it. There's just the weird glitch problem.
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Re: Graphic glicht in debian with nvidia-driver

Postby Teodoro777 » 2020-10-18 01:01

LE_746F6D617A7A69 wrote:It's an Nvidia GeForce 950m -> "M" means mobile version -> most likely this is an optimus laptop.
https://wiki.debian.org/NVIDIA%20Optimus

Now I installed bumblebee, but there is always the same problem and more now i can't open more nvidia-settings which returns: "error unable to load info from any available system".
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Re: Graphic glicht in debian with nvidia-driver

Postby Head_on_a_Stick » 2020-10-18 09:05

Teodoro777 wrote:i can't open more nvidia-settings

How are you attempting to open that program? Have you tried
Code: Select all
optirun nvidia-settings

Disclaimer: I don't have any hardware from those NVIDIA bastards.
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Re: Graphic glicht in debian with nvidia-driver

Postby Teodoro777 » 2020-10-18 18:43

Head_on_a_Stick wrote:
Teodoro777 wrote:i can't open more nvidia-settings

How are you attempting to open that program? Have you tried
Code: Select all
optirun nvidia-settings

Disclaimer: I don't have any hardware from those NVIDIA bastards.

Yes, i tried, but nothing to do...
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Re: Graphic glicht in debian with nvidia-driver

Postby Head_on_a_Stick » 2020-10-18 18:45

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Re: Graphic glicht in debian with nvidia-driver

Postby Teodoro777 » 2020-10-18 18:54

Now, using also ubuntu, I just notified an stranger thing.. in ubuntu (on the top) I've all those entries, while in debian (below) I have a lot fewer. I'll upload the screenshot here https://imgshare.io/image/tg0p46vybrt51.NUMiQS. The nvidia-driver is the same, so why this difference? Also there are no glitches on ubuntu, so could it depend on this different "recognition" detected by the Nvidia control panel?
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Re: Graphic glicht in debian with nvidia-driver

Postby stevepusser » 2020-10-19 04:41

If Bumblebee is properly installed and working, then you have to add more arguments to launch nvidia-settings, but since the OP hasn't provided any information on their machine or even tested to see if optirun works at all, I'll wait for that.

Following the Debian wiki for just the Nvidia drivers will break the GUI on Optimus laptops. You must follow the directions for BUMBLEBEE there. Again, this is very very common.
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