Concerning adjusting the luminance of a display device

learn more… | top users | synonyms

3
votes
1answer
322 views

I Can't raise the brightness to the maximum.

I have a macbook pro late 2008. When Im raising the brighntess level, when it reaches the 50% it starts to decrease the brightness till it goes almost dark on 100%. Someone know how to do fix this? ...
2
votes
1answer
85 views

Can I change which external monitor is considered the “secondary” monitor?

I've got a MacBook Pro, and two Thunderbolt displays. I'd like to be able to change the brightness on them individually, like so: For the MacBook, I'd use the F1/F2 keys on its keyboard. For the ...
0
votes
1answer
66 views

Why does the brightness still automatically adjust after turning it off (Mavericks)

I turned off automatic brightness adjusting in the display preference pane (as explained here). The brightness still adjusts automatically. If I have the preference pane open I can even watch the ...
0
votes
1answer
101 views

Late 2008 Macbook Pro Brightness Issues

Recently my Macbook Pro's screen started looking dimmer than usual, and has a slight flicker. When I press the Brightness up and down keys, I see the visual feedback on the screen that would suggest ...
3
votes
0answers
185 views

Screen brightness decreases when I middle-click

I have a logitech wireless mouse hooked up to a macbook pro running 10.7. Whenever I middle-click the mouse button, the laptop's display brightness decreases. It behaves just as if I had pressed the ...
2
votes
0answers
321 views

Brightness on bootcamp is totally off

So i have a MBP retina 15" that has a Windows 7 Bootcamp partition. The other day I noticed my screen was a little dirty so I took the screen brightness all the way down (fn+ f1) and did this while ...
1
vote
0answers
23 views

Automatically adjust brightness on second monitor

I am using a Late 2013 21.5" iMac with a 22" Samsung TV as a second monitor. My iMac automatically changes its brightness throughout the day. Is there any way I can get my Samsung TV to automatically ...
1
vote
0answers
272 views

MacBook Air Backlit Keys Not Adjusting

I have the Adjust keyboard brightness in low light option selected but this just isn't working correctly. The screen brightness adjust automatically (i.e. I put my thumb over the webcam and the ...
1
vote
0answers
2k views

MacBook backlight turns off when brightness is set at 100%

I was using my MacBook today when suddenly the backlight turned off, right while I was in the middle of using it. I know it was the backlight because: I have an external display, which remained on, ...
1
vote
0answers
256 views

How to control brightness on external late 2009 iMac monitor when connected to new 2012 iMac primary monitor?

I have a late 2012 27" iMac as my primary monitor also connected to a late 2009 27" iMac as a secondary monitor via a mini-display port to mini-display port cable. I also have a Dell 24" monitor ...
1
vote
0answers
67 views

Change duration between ambient screen-brightness change

When the ambient light changes around my workspace, my MacBook Pro laptop responds appropriately. However, I find that when the screen brightens or dims, it is too quick. Is there a way to increase ...
0
votes
0answers
23 views

Mac brightness adjustment menu is always up?

The brightness menu popped up and doesnt disappear. The key that is responsible for bringing it up is F2! what can I do to make it turn off?
0
votes
0answers
98 views

iMAC 20-inch - Early 2008 - Brightness automatically dims, no settings to prevent this

My display automatically dims itself after a while and it's really annoying. Of course I tried to search for a solution, but I've got no options like the answers say. They mention "Energy Saver", and ...
0
votes
0answers
268 views

iMac OS X 10.9 screen brightness shortcuts (F14, F15) fail and just beep, Why?

OS 10.9 screen brightness shortcuts (F14, F15) fail and just beep. It seems to be related to when my iPad Apple Bluetooth keyboard is (accidentally) connected to the iMac while using the Apple wired ...
0
votes
0answers
35 views

Dim screen based on luminance

The terminal is white writing on black background, as are many of my apps. Doing this with web pages is not possible even with plugins, without first experiencing a white flash before the page ...
0
votes
0answers
139 views

Mac Mini with mountain Lion sets brightness to max

My Mac mini is automatically putting my monitor brightness to 100%. Inside my display settings, there is no option to set brigthness to the monitor, and I set it directly on Monitor. Any clue how to ...