How do I turn off adaptive brightness?

I have a Microsoft Surface Pro 7 (Windows 10 64-bit).

Apparently the option to turn off adaptive brightness within the settings isn't working? Others are saying that I have to download Intel Command Center to turn it off, but they removed the adaptive brightness option from there? I even tried to go to the registry to disable it, but apparently its not there either? I'm losing my mind.

Brink said:

Hello machinegod, and welcome to Ten Forums.

You might see if you may be able to disable adaptive brightness using an option in the tutorial below.

Enable or Disable Adaptive Brightness in Windows 10

Thanks. I think there is just something wrong with my computer because even when I turn it off, it's still on. This only occurs when on battery. I guess I have to deal with it.

Surface Pro 6, manually updated to 2004 last week. There is now no way to turn off adaptive brightness. Seeing the screen constantly stepping brightness up or down is one of the most irritating things in the universe, and I can’t turn it off.

I've tried all the so-called solutions that I could find; none work. I had previously turned it off with the Intel Graphics Control Panel but that has been replaced with Intel Graphics Control Center, which does not provide that option. This problem appears to be related to the latest Intel display driver, which is necessary for the 2004 version. I can't roll back to a previous version because of this 2004 support. Trying to install an earlier Intel driver fails. I can uninstall the Intel display driver and the Windows default takes over with perfectly good display results, but the camera no longer works (???) and other things aren't just right. No registry changes that I've found, no group policy support, no nothing, even from here: https://www.tenforums.com/tutorials/70157-enable-disable-adaptive-brightness-windows-10-a.html

So I am considering going back to the previous version but before I do this I would like some advice:

1. Anything to try that might have been missed?
2. Does going back to a previous version actually work these days (2004 to 1909 or whatever the previous version is)? All the stuff to roll back is still installed.
3. Will the roll-back get the SP6 back to the exact configuration, including drivers, that it was in before the update? I haven't changed or added any apps since the upgrade, so that won't be a problem.