[HowTo] get legacy 340xx NVIDIA drivers back

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@codesardine your post is not wiki editable so please have a look at this KDE plasma freezes all the time - #9 by omano and please add the needed missing parts:

  • the config file for the xorg ABI issue

But you will also need to manually add a configuration file to bypass incompatibility with the current xorg in Manjaro, following these instruction, before rebooting:

Create the file /etc/X11/xorg.conf.d/30-nvidia-ignoreabi.conf from terminal

sudo nano /etc/X11/xorg.conf.d/30-nvidia-ignoreabi.conf

Copy and paste the following to this file

Section "Files"
  ModulePath   "/usr/lib64/nvidia/xorg"
  ModulePath   "/usr/lib64/xorg/modules"
EndSection

Section "Device"
  Identifier "Nvidia Card"
  Driver "nvidia"
  VendorName "NVIDIA Corporation"
EndSection

Section "ServerFlags"
  Option "IgnoreABI" "1"
EndSection

Save the file and exit nano text editor by pressing CTRL+X then Y (you can follow at the bottom what it does). It should bring you back to the terminal.

  • the ignorepackage addition because of the AUR trying to install/update/replace the installed packages and failing (adding all Nvidia packages to ignore list), resulting in being unable to install/update any package from Pamac when AUR is enabled.

  • the blacklisting of nouveau in modprobe even if not required this may be good to do it

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