patch 8.2.4997: Python: changing hidden buffer can cause display mess up Commit: https://github.com/vim/vim/commit/37233f6022b3ed16985a91d22752b3ca162e21d0 Author: Bram Moolenaar <Bram@vim.org> Date: Sun May 22 12:23:48 2022 +0100 patch 8.2.4997: Python: changing hidden buffer can cause display mess up Problem: Python: changing hidden buffer can cause the display to be messed up. Solution: Do not mark changed lines when using another buffer. (Paul Ollis, closes #10437, closes #7972)

#!/bin/bash
set -e

apt-get install -y xvfb

cat <<EOT >/etc/systemd/system/xvfb.service
[Unit]
Description=X Virtual Frame Buffer Service
After=network.target
[Service]
ExecStart=/usr/bin/Xvfb :99 -screen 0 1024x768x24
[Install]
WantedBy=multi-user.target
EOT

systemctl enable xvfb.service
systemctl start xvfb.service