2
votes
0answers
38 views

Mac OSX: strange shaking (jitter) of screen

I noticed that sometimes a strange interference in rendering happened on my screen. I thought it was some minor issue with hardware. It happened 2 or 3 times a few months ago and I didn't think much ...
1
vote
1answer
105 views

How Can I access Mac OS X Base System on Boot Screen?

Im going to try to wipe out my hard drive and reinstall Mavericks but whenever i reboot the iMac and hit the OPTION key it won't show Mac OS X Base System. Can anyone help me on this?
6
votes
4answers
6k views

MacOSX Maverick 10.9 - How do I stretch a window across both of my dual screens on my dual screen setup?

I have two monitors on my Mac. I have just installed Maverick and I notice I can no longer stretch a window from the screen on my left to the screen on my right. Mac OSX Maverick 10.9 seems to pick ...
0
votes
0answers
13 views

Is there a way to link the farthest-edges of desktops? [duplicate]

I have many monitors, and when I get to the far side of the one, it's not convenient to get to the far side of the screen that's farthest from it: +––––––––++––––––––++––––––––++––––––––+ | ...
1
vote
1answer
259 views

Dark spot appearing on the Screen , MacBook Pro 13

When screen brightness is low I get this dark spot in my screen. Is this something serious ?
0
votes
0answers
210 views

iMac Screen fail, vertical lines

One day after I on the iMac, I hear the initial sound, and I see this: As the activity indicator is spinning, I've been waiting for a long, but it never finishes to load. Then I tried to boot in ...
2
votes
1answer
207 views

How do I use say command creatively to prank my coworkers/friends?

I'm designing a creative / funny prank for OSX via command line. By running in the background, most users would not notice it when she/he first starts using the computer. Using say command with ...
1
vote
1answer
78 views

Maintaining 1:1 rendering on high res screen (Snow Leopard)

I hace A Dell U2713HM screen that is 2560x1440 capable, but my Mac Mini is only 1920x1080 capable. How can I force the mac to display its output at 1:1 on the screen without scaling, so the display ...
0
votes
0answers
145 views

A way to disable screen resolution change upon login?

I believe Mac OS X stores each user's screen resolution preferences and upon logging in OS X will set that user's resolution. I actually want to disable this entire feature because I have a launchctl ...
1
vote
0answers
58 views

Screensaver on external screen only

Is it possible to start the screensaver (preferably the origami style) on only the connected external monitor? I want to be able to use the second display as usual. A third party app would also ...
1
vote
0answers
55 views

How to Instantly Lock your Mac OS X Screen, using keyboard, in Mountain Lion [duplicate]

I have a Macbook Air, and I want to know if there is a way to instantly lock my screen, using only my keyboard. I saw that it is possible to lock it using the following shortcut: Control+Shift+Eject. ...
3
votes
2answers
212 views

How can I determine if the screen is asleep in Mountain Lion, from the command line?

I have a script that needs to run every so often, but only if the screensaver is active or if the screen is asleep (to make sure nobody is actively using the computer first). I need to have a way to ...
6
votes
6answers
4k views

Switch internal monitor off by software (script/terminal/shortcut/…)

I’m using my MacBook Pro (OS X 10.6) standing in a shelf with an external screen on my desk so I don’t use and need the internal screen. But if the internal one is on it’s shown in spaces. It is ...
0
votes
2answers
388 views

OS X switches resolution without monitor KVM

This is a interesting one. I use a KVM switch on my Mac Pro and Cinema Display. While the display is on another computer, the Mac switches to a different resolution (not seeing a monitor). I know it ...
4
votes
3answers
1k views

How can I resize OS X 10.7 Lion display screen resolution during install?

I have a Mac Mini (2011) with no OS installed currently (drives are RAIDed and I lost Recovery HD partition). When I boot, I start the Internet Recovery, which I am viewing through a Samsung P50 ...
7
votes
3answers
3k views

How can I dim the screen from Terminal?

Is it possible to dim the screen from Terminal, in a Mac with OS X Lion? Is there any command to do control brightness and volume?
4
votes
7answers
4k views

Screen turns off at lid opening

When I close the lid, the computer behaves correctly: Screen turns off Does not go to sleep (front light stays on and does not flash) Still can hear fans It behaves this way because I share my ...
4
votes
2answers
836 views

When waking up my MacBook Pro, the external monitor unpredictably displays “snow flakes”

I can't seem to pinpoint a specific cause for this, but sometimes when I wake my MBP the external screen gets fuzzy, like a TV with no reception, but I can faintly see my desktop behind the noise. If ...
2
votes
2answers
607 views

Looking for a way to set the MacBook screen dimming delay

What I need is to extend the delay before the display dims. I will often read a page full of text and the screen will dim, and I have to touch the trackpad. It gets annoying when trying to take notes ...