my laptop gets dim auto and lighten when i open a window...i want to disable that dimming

That "auto-dimming" behavior is usually caused by a feature called Content Adaptive Brightness Control (CABC) or EcoPower. It adjusts the backlight based on what is on your screen to save battery, but it can be very distracting when switching between dark and light windows.

Depending on your laptop's hardware (Intel, AMD, or Windows settings), here is how you can disable it:

1. Windows 11 Settings (System Level)

Windows has a built-in setting that overrides many drivers.

  • Go to Settings > System > Display.

  • Click the arrow next to Brightness.

  • Look for a checkbox that says "Change brightness automatically when lighting changes" or "Help improve battery by optimizing the content shown and brightness."

  • Uncheck or turn this to Off.

2. Intel Graphics Command Center (Most Common)

If you have an Intel processor, this is usually the culprit.

  • Open the Intel Graphics Command Center app (search for it in the Start menu).

  • Go to the System tab (usually a 4-square icon) and then click Power.

  • Find Display Power Saving Technology (or Adaptive Brightness) and toggle it to Off.

  • Note: You may need to do this for both "Plugged In" and "On Battery" tabs.

3. AMD Radeon Settings

If your laptop uses an AMD Ryzen processor:

  • Open AMD Software / Radeon Settings.

  • Go to Settings (Gear Icon) > Display.

  • Look for Vari-Bright and toggle it to Off. This is AMD’s version of content-based dimming.

4. Check "Eco" or "Battery" Apps

Since you mentioned using your laptop for freelancing and high-performance tasks, check if you have a manufacturer-specific app installed (like Lenovo Vantage, MyASUS, or HP Command Center).

  • Look for "Eco Mode" or "Battery Saver" settings within those apps.

  • Sometimes these apps have a "Display Power Saving" feature that acts independently of Windows.

5. The "Sensor" Physical Hack

If your laptop is dimming based on the light in your room (not just the window content), the Ambient Light Sensor might be active.

  • The sensor is usually a tiny dot near your webcam.

  • If you can't find the setting to turn it off, placing a small piece of dark electrical tape over the sensor will stop it from reacting to room light changes, though it won't fix the "window content" dimming.

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