How to Install Mesa Drivers on Ubuntu

Qemu start with a Mesa error.

sakura@sakurayumeno:~$ sudo qemu-system-x86_64 -m 4G -smp 4 -cpu host -usb -device usb-tablet -boot d -enable-kvm -drive file=/mnt/e/Downloads/Edgeless_Beta_4.1.0.iso,media=cdrom -device virtio-gpu-pci
[sudo] password for sakura:
error: XDG_RUNTIME_DIR is invalid or not set in the environment.
MESA: error: ZINK: failed to choose pdev
glx: failed to create drisw screen

Install the latest stable version of Mesa driver.

glxinfo | grep Mesa
sudo add-apt-repository ppa:kisak/kisak-mesa
sudo apt update
sudo apt upgrade

Remove it and go back to original Mesa drive.

sudo apt install ppa-purge
sudo ppa-purge ppa:kisak/kisak-mesa