Brightness keeps changing in Windows 10 x64

I have tried everything, going to advanced power settings, system settings but nothing. I have also tried to go to Intel options but i don't see any option to turn off power saving so I don't know what to do. It changes when im swapping windows, for example, if I am on Facebook and I swap to a game window, it decreases in brightness.

Solution 1:

This was bugging me for years till I found answer in some obscure forum, here it the problem: https://support.microsoft.com/en-us/help/3046889/intel-display-power-saving-technology-settings-incorrect-if-power-source-changed-during-sleep

In case the link drops dead, here is still solution how to fix it

Solution

• Open your Intel HD

  • The drivers for your integrated Intel HD graphics card. I am aware this is counter intuitive for users who have dedicated graphics card, but the way this whole thing at point of writing is working means that most settings from here are considered 'master' settings.

• Make sure that under battery you have the power saving option disabled.

  • Yes, I know that you might be thinking what kind of hard liquor I was drinking, but trust me, this setting is still in affect when you plug in your laptop into the wall.
  • Make sure to check this from time to time, because I found out that this options get reactivated on updates and some other random triggers.

• If you notice that your screen is still flickering brightens based on background, just unplug the power cable and plug it back it. This will reset some DPST settings and it will stop doing it. This happens only if you use sleep on your laptop. Full shutdown should be fine.

Edit October 2021
Some laptops these days come with advanced optimus or MUX switch to allow laptops to use dedicated GPU only. One example is Razer. If you switch the mode to use the dedicated GPU and open Intel HD then these battery options might not be visible, so you have to turn off this mode, restart your laptop, flip the setting, then enable back dedicated GPU only.

Annoying thing is that dimming occurs even with dedicated mode and it resets settings for me each time there is windows update even if I don't use integrated GPU at all.

Solution 2:

The other answers didn't work for me - here's how I fixed it:

1. From your desktop, click the Intel Graphics Settings icon in the bottom right-hand corner.
2. Then from the Intel Graphics Settings dashboard, click on the Power icon.
3. Tick Disable under Display Power Saving Technology.

This is taken from the Reddit source.

Solution 3:

Turning off Display Power Savings in Intel® Graphics Command Center fixed the issue for me.

or in a new design