Brightness changes while "Adaptive Brightness" is disabled in Windows 8.1/10 with Intel HD Graphics

Just found a suggestion that solved my problem here.

It is the Intel "Display Power Saving Technology" that is to blame.

Disable it like so:

1. Launch "Intel HD Graphics Control Panel" by right clicking and selecting "Graphics Properties..." from your Intel HD Graphics tray icon
2. Click Power
3. Choose "On battery"
4. Select "Disable" for Display Power Saving Technology
5. Click Apply

Even after changing the "power" options in the "Intel HD graphics control panel" the brightness kept adapting to the image brightness/darkness.

So did some research and found a solution through editing the registry.

instructions:

1. press Win+r
2. type regedit and press Enter
3. navigate to HKEY_LOCAL_MACHINE\Software\Intel\Display\igfxcui\profiles\media\Brighten Movie and change ProcAmpBrightness to 0
4. also navigate to HKEY_LOCAL_MACHINE\Software\Intel\Display\igfxcui\profiles\media\Darken Movie and change ProcAmpBrightness to 0

This should solve the problem.

So i just fixed this problem temporarily. What i did is i went to Device Manager, then went to Display adapters.

Now i have 2 graphics cards in my system, one is an integrated Intel HD4000 and the second is a Geforce GT740M so i dont know if this will work on systems with 1 graphics card.

After this just disable and enable your integrated graphics card and it should fix it.