KDE plasma not launching after installing Nvidia proprietary driver

Support Graphics & Display
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1

It can’t see displays. I cannot use tty1 because it’s stuck on “clean files”.

2

Hi @dawidwsmole, and welcome!

What happens when you switch TTYs?

Ctrl+Alt+F1 through F7 shoult do it.

3

I can use them but I can’t lunch kde plasma from them. It can’t connect to display.

4

The TTYs are not plasma-dependent and Plasma isn’t required for them.

5

I know, I’d like to lunch plasma tho.

6

Well, yeah. That’s obviously why you have it. But something sees to have gone wrong, somewhere and we’re trying to figure out what.

But to do that, more info is needed, and that’s why I asked you.

7

What info should I provide?

8
9

It makes me log in and i can use them then. tty1 doesn’t because it’s stuck.

10

When logged in, what’s the output of:

systemctl status sddm

And what happens when you run:

startx
11

upload://uLumbw1eM2pcS7NWiyFqQh9mAUM.jpeg

12

I can’t do anything with that URL, dude.

13

Oh, sorry.

14

Linkhttps://photos.app.goo.gl/6aRbBwwqjX9ENpen7

15

Hmmm…

How did you install the Nvidia drivers?

What’s the output, you can give another link to a photo, of:

mhwd --listinstalled

And

mhwd --list

And

mhwd

Edit:

This should be handy:

16

Linkhttps://photos.app.goo.gl/Gt7HNHGZurBJ22UY7

17

OK, I see there are no drivers installed, so let’s try installing one first. Run the following:

sudo mhwd -i pci  video-hybrid-amd-nvidia-prime

After which, before rebooting run:

mhwd

Again and post the output.

18

It put me in kde plasma :o

19 
0000:08:00.0 (0300:1002:1638) Display controller ATI Technologies Inc:
--------------------------------------------------------------------------------
                  NAME               VERSION          FREEDRIVER           TYPE
--------------------------------------------------------------------------------
video-hybrid-amd-nvidia-prime            2021.12.18               false            PCI
video-hybrid-amd-nvidia-470xx-prime            2021.12.18               false            PCI
           video-linux            2018.05.04                true            PCI
     video-modesetting            2020.01.13                true            PCI
            video-vesa            2017.03.12                true            PCI


> 0000:01:00.0 (0300:10de:1c82) Display controller nVidia Corporation:
--------------------------------------------------------------------------------
                  NAME               VERSION          FREEDRIVER           TYPE
--------------------------------------------------------------------------------
video-hybrid-amd-nvidia-prime            2021.12.18               false            PCI
video-hybrid-amd-nvidia-470xx-prime            2021.12.18               false            PCI
          video-nvidia            2021.12.18               false            PCI
    video-nvidia-470xx            2021.12.18               false            PCI
    video-nvidia-390xx            2021.12.18               false            PCI
           video-linux            2018.05.04                true            PCI
     video-modesetting            2020.01.13                true            PCI
            video-vesa            2017.03.12                true            PCI


> 0000:05:00.0 (0200:10ec:8168) Network controller Realtek Semiconductor Co., Ltd.:
--------------------------------------------------------------------------------
                  NAME               VERSION          FREEDRIVER           TYPE
--------------------------------------------------------------------------------
         network-r8168            2016.04.20                true            PCI
20

That is, after all, what you wanted, right?

But before we do anything else, let’s make sure the system is properly synced. To do so, open a terminal and run:

pamac upgrade --enable-downgrade

If this goes without problems, cross you heart, hold your thumbs, reboot and see what happens.