0
votes
0answers
34 views

Samsung monitor rotation no longer working since update to Mountain Lion

I work with Mac Book Pro,13".10.8.5 and a Samsung-Monitor 2494HM. This monitor has an "Autopivot"-function, comparable to iPad's. You can turn the monitor and see the hidden parts of the screen. This ...
1
vote
1answer
172 views

2012 Macbook Air Mt Lion 10.8.2. Can I factory reset and upgrade using only an external monitor?

I just purchased a 2012 MacBook Air with a broken screen. I'm using it as a desktop via an external monitor. I plan to do a factory reset and then upgrade to mavericks. Will I be able to complete ...
2
votes
1answer
616 views

MacBook Pro repeatedly freezes, often with odd display glitches

I have an older, 2007 15-inch MacBook Pro (model identifier MacBookPro3,1) which has begun freezing repeatedly. If I boot into Single User Mode it stays operative, however I've begun to get graphic ...
3
votes
1answer
295 views

App windows move spontaneously on display wake (2 monitors) - OS X 10.8.3

OS X 10.8.3 Mac Mini Late 2012, 2.6Ghz quad-core i7, set up with 2 displays, like this: Thunderbolt Port HDMI Port /*****************|------|**********\_______________ | ...
3
votes
7answers
8k views

How to Screen Sharing / VNC to an iMac without waking the display?

I have an iMac mid 2011 at home. When I was not home, I may need to access my mac with Screen Sharing. However the iMac display will turn itself on when I connect via Screen Sharing. The problem is I ...
1
vote
1answer
3k views

Problem with Mac HDMI - Thunderbolt display to Sony (not a cable problem)

I have a 13-inch Macbook Pro with Mountain Lion installed. I bought an HDMI - Thunderbolt cable months ago in order to watch movies, TV shows and whatnot on my TV (Sony Bravia). The cable had been ...
4
votes
1answer
208 views

Why does my macbook pro displays random garbled blocks?

Occasionally my macbook pro (15-inch, Early 2011 with mountain lion 10.8.2) displays random garbled blocks. This happens on external Apple displays and the laptop display. See photo.
5
votes
2answers
3k views

What happened to detect displays?

I'm running Mountain Lion with a retina MacBook Pro with three external monitors attached. Quite often, one or more of the monitors blacks out. Normally, I would choose "detect displays" in the ...
0
votes
1answer
168 views

External monitor showing greenish shadow

I've got a macbook pro 2011 and am using a mini-display to dvi adapter to hook up a ViewSonic monitor (Viewsonic VX2450WM-LED 24-Inch). Problem is this greenish shadow showing up for certain hues of ...
1
vote
1answer
617 views

How can I keep my Mountain Lion MacBook Pro display at maximum brightness?

I have periodically noticed that my display has been a bit dim, and have brought it up to maximum brightness... only later to find that my display was about halfway on brightness. I can't rule out a ...
3
votes
1answer
4k views

Turn off internal display without closing lid

I learned that a MacBook Air's built-in screen turns off when I close the lid so I can continue working on an external display set to be primary. But the MacBook Air has a heat system that requires it ...
1
vote
0answers
242 views

Display contrast change when playing media

I have a weird issue with my MacBook Pro that I bought about 3 weeks ago. I noticed that when I start playing VLC player or even when opening up certain websites that the color saturation seems to ...
2
votes
1answer
2k views

Auto Brightness in Mountain Lion

Ever since I've updated to Mountain Lion, the screen brightness keeps changing automatically. I don't have the setting enabled in Energy Saver. I usually have my brightness set to 100%, and the ...
1
vote
2answers
3k views

After upgrading Mac mini to Mountain Lion, the display is not working

I had my Mac mini connected to a TV using VGA (with the mini DisplayPort-to-VGA adapter) running fine. After upgrading to Mountain Lion it simply doesn't work anymore. I wasn't using any software ...