diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6afd704cd1d3..7f8e935de6ef 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ All notable changes to this project will be documented in this file.
 
 ### Changed
 - ESP32 compiler option from `target-align` to `no-target-align` (#21407)
+- On universal display remove default backlight power if a PWM channel is used for backlight
 
 ### Fixed
 - Domoticz re-subscribe on MQTT reconnect. Regression from v13.4.0.3 (#21281)
diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index 4dcac22cf9cc..1737ceded782 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -126,6 +126,7 @@ The latter links can be used for OTA upgrades too like ``OtaUrl https://ota.tasm
 ### Breaking Changed
 
 ### Changed
+- On universal display remove default backlight power if a PWM channel is used for backlight
 - ESP32 compiler option from `target-align` to `no-target-align` [#21407](https://github.com/arendst/Tasmota/issues/21407)
 
 ### Fixed
diff --git a/tasmota/tasmota_xdrv_driver/xdrv_13_display.ino b/tasmota/tasmota_xdrv_driver/xdrv_13_display.ino
index 682ecf7c8f07..2f963237e09d 100644
--- a/tasmota/tasmota_xdrv_driver/xdrv_13_display.ino
+++ b/tasmota/tasmota_xdrv_driver/xdrv_13_display.ino
@@ -1908,7 +1908,11 @@ void DisplayInitDriver(void) {
 
     UpdateDevicesPresent(1);
     if (!PinUsed(GPIO_BACKLIGHT)) {
-      if (TasmotaGlobal.light_type && (4 == Settings->display_model)) {
+//      if (TasmotaGlobal.light_type && (4 == Settings->display_model)) {
+      if (TasmotaGlobal.light_type &&         // Assume PWM channel
+          ((4 == Settings->display_model) ||  // ILI9341 legacy
+           (17 == Settings->display_model))   // Universal
+         ) {
         UpdateDevicesPresent(-1);  // Assume PWM channel is used for backlight
       }
     }