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--- linux:notes:gnome_hdmi_full_rgb [2025/09/11 06:43] – external edit 127.0.0.1
+++ linux:notes:gnome_hdmi_full_rgb [2025/11/07 02:49] (current) – Sean Rhone
@@ Line 3: / Line 3: @@
   * https://gitlab.gnome.org/GNOME/mutter/-/blob/main/src/tests/monitor-configs/max-bpc.xml?ref_type=heads (maxbpc)
   * https://gitlab.gnome.org/GNOME/mutter/-/blob/main/src/tests/monitor-configs/rgb-range.xml?ref_type=heads (rgbrange)
+  * https://gitlab.gnome.org/GNOME/gdm/-/issues/553#note_2456876
+====== Full RGB ======
   nano ~/'.config/monitors.xml'
+<code>
+        </mode>
+        <rgbrange>full</rgbrange>
+        <maxbpc>12</maxbpc>
+      </monitor>
+</code>
+  sudo cp -fv ~/'.config/monitors.xml' '/etc/xdg/monitors.xml'
+====== Reset ======
+****
+  sudo rm -fv ~/'.config/monitors.xml' '/etc/xdg/monitors.xml'
+====== monitors.xml ======
 <code>
@@ Line 18: / Line 38: @@
         <monitorspec>
           <connector>HDMI-1</connector>
-          <vendor>TCL</vendor>
+          <vendor>GSM</vendor>
-          <product>55S405</product>
+          <product>LG TV</product>
-          <serial>0x00000000</serial>
+          <serial>0x01010101</serial>
         </monitorspec>
         <mode>
@@ Line 31: / Line 51: @@
       </monitor>
     </logicalmonitor>
+    <disabled>
+      <monitorspec>
+        <connector>eDP-1</connector>
+        <vendor>BOE</vendor>
+        <product>0x06cb</product>
+        <serial>0x00000000</serial>
+      </monitorspec>
+    </disabled>
   </configuration>
-</monitors>
+</monitors></code>
-</code>
-  sudo cp --remove-destination ~/'.config/monitors.xml' ~gdm/'.config/monitors.xml' && sudo chown 'gdm':'gdm' ~gdm/'.config/monitors.xml'