Failed to start light display manager after switching from GeForce to Radeon

Support Graphics & Display
1

Hi!
After changing Graphic Card from GTX 1050ti to Radeon RX 580 I get “Failed to start Light display manager”.

I all ready removed nvidia thru mhwd
mhwd -r pci video-nvidia
and installed free driver
mhwd -a pci free 0300
and
mhwd -f -i video-linux.
but it didn’t helped.

I also removed this nvidia packet:
linux54-nvidia-440xx
linux-lts-nvidia-440xx
nvidia-440xx-utils
lib32-nvidia-440xx-utils

What else can I do to fix this error?
Thanks in Advance for any help!

EDIT:
mhwd -li && mhwd li shows this

Installed PCI configs:

              NAME               VERSION          FREEDRIVER           TYPE

video-nvidia-440xx            2020.10.04               false            PCI
       video-linux            2018.05.04                true            PCI

Warning: No installed USB configs!

0000:08:00.0 (0300:1002:67df) Display controller ATI Technologies Inc:

              NAME               VERSION          FREEDRIVER           TYPE

       video-linux            2018.05.04                true            PCI
 video-modesetting            2020.01.13                true            PCI
        video-vesa            2017.03.12                true            PCI

0000:04:00.0 (0200:10ec:8168) Network controller Realtek Semiconductor Co., Ltd.:

              NAME               VERSION          FREEDRIVER           TYPE

     network-r8168            2016.04.20                true            PCI

Is it possible, that this nvidia config makes this error?
How to remove it?

2

No you didnt.

So, first uninstall that profile …

sudo mhwd -r pci video-nvidia-440xx

Then lets force reinstall video-linux…

sudo mhwd -f -i pci video-linux
3

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