Windows 8 via Bootcamp Brightness Problem, Buttons working.

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Windows 8 via Bootcamp Brightness Problem, Buttons working.

I've installed windows 8 via bootcamp on my 2011 mbp and installed the drivers from apple. But the brightness(backlight off my screen can't go to full, except the first seconds when booting into windows. When is push the function keys the brightness doesn't go higher. Because the windows brightness menu says that the screen is at full brightness. When I lower the brightness (In the menu or with the buttons) the screen goes completly black when the bar says that the brightness is at a quater. Does anyone have any solutions? If you guys need screenshot I can provide. Thnx in advance!

MacBook Pro, Other OS, Late 2011 MBP

Posted on Jan 10, 2013 1:03 AM

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Answer 1

Jan 10, 2013 1:03 AM in response to Cabooze

post in the BootCamp forum.

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Answer 2

Jan 15, 2013 11:56 AM in response to shldr2thewheel

Where do you think he is posting? This IS the bootcamp forum

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Answer 3

Jan 15, 2013 11:58 AM in response to Marcelo NS

It was originally in a different forum, and it was move by an administrator. That's why I made the suggestion (before it was automatically moved).

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Answer 4

Jan 15, 2013 11:58 AM in response to Cabooze

This issue is due to the adaptive brightness feature on windows 8, that somehow overlaps with the adaptive brightness provided in bootcamps drivers. You have the fix here:

http://www.howtogeek.com/107173/disable-windows-8s-adaptive-brightness-to-fix-da rk-screen-problems/

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Answer 5

Oct 21, 2013 2:38 AM in response to Marcelo NS

Hi Thxz Marcelo, its solved my problem, its a fantastic explanation.

Thumbs up.....🙂🙂🙂

Siva

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Answer 6

SirAce

Level 1

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Oct 21, 2013 3:33 PM in response to Cabooze

I have been having the issue of no brighness control when running windows through bootcamp for about 6 months now and have not found any applicable solution online.

While messing around trying to figure it out yet again I noticed that my monitor driver was signed by team viewer...

Sure enough clicking the roll driver back button resolved the issue by rolling the driver back to the Microsoft driver...

So long story short:

Right click "My Computer" click properties

Click device manager (lop left of window)

Expand Monitors section

Double Click monitor

Click driver tab

If the driver here is not signed by Microsot or Apple click the roll back button. My driver version is 6.1.7600.16385 (Driver date 6/21/2006)

Rolling this back instantly resolved my issue. I will now propagate this post to all the threads I saw regarding this issue.

I am running windows 7 x64 Ulti on a 15" rMBP.

Best of luck

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Answer 7

Alex Kir

Level 1

0 points

Oct 23, 2013 1:15 PM in response to Cabooze

Solution below helps to me.

http://catch404.net/2013/07/brightness-unchangeable-in-windows-8-on-a-macbook-wi th-nvidia/

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Answer 8

marknewt

Level 1

5 points

Feb 1, 2014 1:26 AM in response to SirAce

SirAce, you bloody rock, sir.

This was exactly what worked. Disabling a PnP monitor brings back bootcamp brightness tab and brightness bezel. Thank you very much. I will post about this solution on my mac blog, referring to this thread.

Thanks again.

http://www.chromescreen.com

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