Arch Linux Troubleshooting

I have registered here some tweaks to solve glitches after a fresh Arch Linux install with the xfce desktop environment. Things are written in a Q&A fashion in no particular order (that is, in random order :)).

xfce takes forever to start.

clear the cache with rm -rf .config/ .cache/ .gnome*

there is no internet. wpa_supplicant is missing.

start a live Arch Linux environment (from a USB drive or CD), chroot to your system, and then install the packages required to connect to the internet.

pacman -S wpa_supplicant wireless_tools wpa_actiond dialog

volume keys don’t work.

go to Settings > Keyboard > Application Shortcuts and add the commands:

pactl -- set-sink-volume 0 +10% for the shortcut XF86AudioRaiseVolume

pactl -- set-sink-volume 0 -10% for the shortcut XF86AudioLowerVolume