my dotfiles for arch
thomas.rocks
1#!/bin/bash
2set -e
3
4ENTRY_DIR="/efi/loader/entries"
5BACKUP_DIR="${ENTRY_DIR}/backup-$(date +%F-%H%M%S)"
6EDID_PARAM="drm.edid_firmware=DP-1:edid/g80.bin"
7
8echo "Backing up boot entries..."
9sudo mkdir -p "$BACKUP_DIR"
10sudo cp -v "${ENTRY_DIR}"/*.conf "$BACKUP_DIR"
11
12echo "Adding EDID parameter to boot entry files..."
13for file in "${ENTRY_DIR}"/*.conf; do
14 if grep -q "$EDID_PARAM" "$file"; then
15 echo "Already present in $(basename "$file"), skipping."
16 continue
17 fi
18
19 # Use | as delimiter to avoid issues with '/'
20 sudo sed -i "s|^options|& ${EDID_PARAM}|" "$file"
21 echo "Updated $(basename "$file")"
22done
23
24echo
25echo "All done!"
26echo "Backup saved to: $BACKUP_DIR"
27echo "Reboot to apply changes."