klal

roles/mqtt-srv/files/get_monitors.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+rm  /tmp/monitors.txt
+while read -r output hex conn; do
+    [[ -z "$conn" ]] && conn=${output%%-*}
+    echo "$output;$(xxd -r -p <<< "$hex")">>/tmp/monitors.txt
+
+done < <(xrandr --prop | awk '
+    !/^[ \t]/ {
+        if (output && hex) print output, hex, conn
+        output=$1
+        hex=""
+    }
+    /ConnectorType:/ {conn=$2}
+    /[:.]/ && h {
+        sub(/.*000000fc00/, "", hex)
+        hex = substr(hex, 0, 26) "0a"
+        sub(/0a.*/, "", hex)
+        h=0
+    }
+    h {sub(/[ \t]+/, ""); hex = hex $0}
+    /EDID.*:/ {h=1}
+    END {if (output && hex) print output, hex, conn}
+    ' | sort
+)