XPS 13 (2015) brightness issues

It was on initially, I disabled it and it didn't affect anything.

Secure boot doesn't help. Everything your suggesting, a Dell tech tried when I gave Dell remote access to my XPS 13.

My XPS 13 has the same issue and the tech couldn't figure it out. He concluded it was a hardware feature at the end, but I don't think he was sure.

It's either a software issue or it's a hardware "feature" in these new Sharp IGZO displays.

Disable secure boot, and then try this. I found this on an Intel forum (for an Inspiron 14z), try this:

When it's up and running, go to your desktop, right click on the battery icon and select "Power Options."

On the left side of the Power Options window, click on "Dell Extended Battery Life Options."

In the "Status" tab of the battery meter window, you should now see the "Remind me when Dell Intelligent Display or Dell Extended Battery Life is On". Click the settings button next to that, and uncheck enable Intel Display Power Saving Technology.

I only show:

Balanced

Power Saver

High performance

I did.  There is no Dell Extended Battery Life options on that menu on mine.

For some reason Dell removed the battery button on the keyboard too. I am looking for a way to get you the battery meter application. Since for some reason Dell is not including it on the systems anymore. Do you have QuickSet installed? Try installing QuickSet from here: <ADMIN NOTE: Broken link has been removed / replaced from this post by Dell>

After doing some hunting I tracked that application to be a part of QuickSet.

You must right click the icon. It will bring up a menu that looks like this. 

DELL. If you are reading this, then  please please get this issue fixed. Everyone on the forums and even your own subreddit is complaining about the adaptive brightness issue. We want to have control over our own screen brightness, just like every other laptop on earth lets us do. A lot of people are returning their laptops over this brightness problem, and I really hope you give us a proper update on whats going on.

Has anyone restored back to the factory settings? I know it sounds weird since it just came from the factory, but with not much on it now is the best time to try.

I tried to install QuickSet and got a message saying "This is not a supported system."

http://i.imgur.com/GZpmu0B.png

Hmm... Hopefully a BIOS update will come and fix it. I will let you know if I hear anything else.

I have been told a system restore might fix the issue. I would try a restore, even if it came from the factory with the issue. I have been told it has worked on at least one machine.

How would a system restore fix it right from the factory?  If there are no restore points.

I have actually completely formatted my system and reinstalled Windows 8.1 and all the drivers from Dell's website and it's still doesn't work correctly.

Good to know; I am disappointed that did not solve it however.