# old version (without -$pkgrel): ${1%%-*}
# new version (without -$pkgrel): ${2%%-*}

post_install() {
  cat << EOF
Steps:

0. Install this package

1. Install display driver package

2.  Reboot or

2a. sudo modprobe evdi
2b. dmesg -w # watch for evdi messages
2c. Replug USB display device

3. Enable screen
EOF
}