33 lines
797 B
Bash
Executable File
33 lines
797 B
Bash
Executable File
#!/bin/bash
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set -e
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# Re-run with sudo if not root
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if [[ $EUID -ne 0 ]]; then
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exec sudo "$0" "$@"
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fi
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ENTRY_DIR="/efi/loader/entries"
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BACKUP_DIR="${ENTRY_DIR}/backup-$(date +%F-%H%M%S)"
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EDID_PARAM="drm.edid_firmware=DP-1:edid/g80.bin"
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echo "Backing up boot entries..."
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mkdir -p "$BACKUP_DIR"
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cp -v "${ENTRY_DIR}"/*.conf "$BACKUP_DIR"
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echo "Adding EDID parameter to boot entry files..."
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for file in "${ENTRY_DIR}"/*.conf; do
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if grep -q "$EDID_PARAM" "$file"; then
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echo "Already present in $(basename "$file"), skipping."
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continue
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fi
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# Use | as delimiter to avoid issues with '/'
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sed -i "s|^options|& ${EDID_PARAM}|" "$file"
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echo "Updated $(basename "$file")"
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done
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echo
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echo "All done!"
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echo "Backup saved to: $BACKUP_DIR"
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echo "Reboot to apply changes."
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