arch-linux-problem-solving.md

How to fix Avatar: Frontiers of Pandora on Heroic Games Launcher (Epic) not working because of incompatible DirectX version

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How to solve the problem where paru appears to do nothing (no stdout messages) after being evoked

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How to solve "error: failed to synchronize package databases (unable to lock database)"

Remove the pacman lock file:

sudo rm /var/lib/pacman/db.lck

Then reboot.

How to fix Roboquest (installed on heroic games launcher from GOG.com) not working because of missing Microsoft visual C++ libraries

Use winetricks to install the Microsoft visual C++ 2015-2019 runtime:

WINEPREFIX=/home/raffaele/.games/prefixes/Roboquest winetricks vcrun2019

How to fix plank not starting after disabling lightdm and using startx to boot X

add the following to ~/.bashrc:

export XDG_SESSION_DESKTOP=bspwm
export XDG_SESSION_TYPE=x11 plank

How to fix DBeaver not starting because of incorrect default java version

change default java version:

sudo archlinux-java set java-11-openjdk

How to fix a broken X server that doesn't start (NVIDIA GPU)

Boot into an arch-linux live usb-drive

Perform an arch-chroot:

mount /dev/sda2 /mnt
mount /dev/sda1 /mnt
arch-chroot /mnt

Remove /etc/X11/xorg.conf:

sudo rm -v /etc/X11/xorg.conf

Recreate /etc/X11/xorg.conf:

nvidia-xconfig

How to solve "invalid or corrupted signature PGP" problem

Update arch linux keyring:

sudo pacman -Sy archlinux-keyring

How to solve "failure of update" problem

Remove the auto-configured file (specified in the error log):

sudo rm path-to-file

How to solve repository sync problem (?)

Remove cache files:

sudo paccache -r

How to force-remove a package

sudo pacman -Rdd package

How to get MakeMKV to detect my Pioneer BDR-XD07TS bluray drive:

su
echo sg > /etc/modules-load.d/sg.conf
exit
sudo modprobe sg

How to grant Tauon Music Box (installed from flathub) permission to import music from ~/Music

flatpak override --user com.github.taiko2k.tauonmb --filesystem=~/Music

How to solve screen tearing problem (NVIDIA)

sudo nvidia-settings

go to X Server Display Configuration

go to Advanced

enable ForceCompositionPipeline

enable ForceFullCompositionPipeline

click Save to X Configuration File and enter /etc/X11/xorg.conf

How to change the owner and group of a directory

sudo chown raffaele:raffaele /run/media/raffaele/250GB

How to add a locale

example: it_IT.UTF-8 :

sudo vim /etc/locale.gen

decomment it_IT.UTF-8

save

generate new locale:

sudo locale-gen

How to backup and load Cinnamon DE settings

Backup:

dconf dump /org/cinnamon/ > cinnamon_desktop_backup

Load:

dconf load /org/cinnamon/ < cinnamon_desktop_backup

How to find keyboard-key names from X events

xev

Then press key and look for the "keycode"

How to find wifi connections with Networkmanager CLI

nmcli device wifi list

How to solve "Paru is broken after update: error while loading shared libraries: libssl.so.1.1: cannot open shared object file: No such file or directory"

sudo pacman -Syu openssl-1.1