DQA测试验证项目 » LB200

#!/bin/bash

# Default DISPLAY if not set

export DISPLAY=${DISPLAY:-:0}

# Function to find and set XAUTHORITY and DISPLAY

function prepare_env() {

    # Try to find the X server process and extract DISPLAY and XAUTHORITY

    for pid in $(pgrep X); do

        PROC_DIR="/proc/$pid"

        # Ensure it's an X or Xorg process

        if readlink $PROC_DIR/exe | grep -qwE "X$|Xorg$"; then

            export XAUTHORITY=$(cat $PROC_DIR/cmdline | tr '\0' '\n' | grep -w "\-auth" -A 1 | tail -1)

            export DISPLAY=$(cat $PROC_DIR/cmdline | tr '\0' '\n' | grep -w "^:.*" || echo ":0")

            return

        fi

    done

}

# Check if xdpyinfo works, else try to set environment variables

if ! xdpyinfo &>/dev/null; then

    prepare_env

    if ! xdpyinfo &>/dev/null; then

        # Try to switch to an authorized user if necessary

        for XUSER in root $(users); do

            if sudo -u $XUSER xdpyinfo &>/dev/null; then

                logger -t $0 "Switching to user: $XUSER"

                sudo -u $XUSER $0

                exit 0

            fi

        done

        logger -t $0 "Unable to contact Xserver!"

        exit 1

    fi

fi

# Run xrandr for both HDMI and DP outputs

for output in $(xrandr | grep -E 'connected' | cut -d' ' -f1); do

    # Enable the connected output (HDMI or DP)

    xrandr --output $output --auto

done

exit 0