IMac :: How To Turn Off IMac Screen But Leave Secondary Screen On?
Dec 21, 2009
I'm sure this should be simple but I can't figure it out.
I have my iMac connected to my TV and am using Plex to watch stuff on the TV.
What I'd like to do is turn my imac screen off without turning off the second monitor output (i.e. tv) as the imac screen is a bit bright/distracting (even on lowest brightness) when watching in the dark.
I have a Mid-2007 Mac Mini and I've noticed every couple days, when I log out of the secondary account, it takes a relatively long time to return to the login screen. The blue screen sits there for maybe 30 - 40 seconds, but then when it returns to the main screen the whole machine freezes. The only thing I can move is the mouse, I can't click any of the buttons such as restart, sleep or get back into my account. I always have to do a hard shutdown.
24" iMac running 10.6.3 and having some issues all of the sudden with my secondary monitor. It detects the display and the monitor comes out of standby, but only shows a black screen. Tried it with another monitor to see if that was the issue but it's not. Seems as if the iMac is sending bad video signal out... Couldn't find anything similar on a quick google search so I thought I'd try here to see if anyone had any similar problems.
I know how to dim the screen, and I'm using Shades to help with that, but I would like it turned completely off.
For example, if I'm burning a DVD overnight, I want the screen to be completely shut off, instead of lighting up the room like it's the middle of the day.
i have a imac g5 and it is hooked up to an external monitor. the reason why i want to turn off the imac screen is because the lcd is cracked. i just want to use the other monitor as the main one.
After having inserted a dvd borrowed from the library which my Imac had a really tough time reading, I turned off my Imac as usual. Since then when I turn my mac on the fan starts roaring and i don't get beyond the first white screen with the sort of clocked wheel just going round and round. I don't have a clue to what to do.
We have an iMac G5 running 10.4.11 which developed some nasty colour banding down the screen and have now plugged in an external display. How can you turn off the iMac display so it only outputs through the external monitor?
I'm not entirely sure how long my iMac has been doing this, maybe two weeks? When I try to wake it from sleep, the screen does not turn on. At all. At first I thought this was because my mouse and keyboard might not be functioning correctly, naturally the only remedy was to turn the computer off with the power button and to restart it (which took an abnormally long time). Today I remote connected with Back to my Mac screen sharing and it did not turn on either. I know it was awake because when I pressed the brightness buttons on the keyboard, it responded on my MBA's view of the screen. Normally, Back to my Mac does turn the screen back on. Anyone else have the same problem? It doesn't seem to matter WHEN it goes to sleep either. I've tried resetting the PRAM already and no dice.
My parents recently bought an iMac. Yesterday my mom was playing a game when the computer froze. Neither force quit or holding the power button was doing anything so in her frustration she unplugged the system. Today, after plugging in the system again, it won't turn on.
I press the power button on the side of the wireless keyboard and the green light on the keyboard turns on for about 3 sec and then starts flashing. No fans start up and the screen does nothing.
Information: iMac and Macbook Pro Mac OS X (10.6.3)
This situation began when I put my Imac on sleep. After, the screen turned on in black whit the cursor but I couldn't do anything.
Then to rebooted the machine, the apple logo and sound began fine but the screen turned off, so moving the mouse the screen turned on in black with cursor.
I'd tried many ways, resetting the PRAM, SMC, repairing the disk and permission, analyzing hardware, repairing fsck files.
Suddenly, when I entered in Verbose mode, mi imac brought into user choose screen and worked fine, but when I shut down and tried to start my mac in the next day, it didn´t work again.
we are trying to hook up our TV as a secondary monitor (for hulu, netflix, etc) but it defaults as the primary monitor. We would like to keep the imac as the primary monitor, and have the TV as a secondary, but cannot figure out how to do it! The only way we can get the imac back to primary status is if we use mirror mode. Once we take it off mirror mode, the TV becomes the primary monitor again, and there appears to be no way of switching it in OSX display preferences.
I've done similar hookups with my laptop, and the TV defaults as the secondary monitor. Why isn't this happening with our iMac? Any ideas?
Like many others, I'm thinking of replacing my HDD with an SSD and replacing my optical drive with the original HDD. I plan on using the SSD as my boot volume and the HDD for storage. Part of the reason I am switching to an SSD is that I carry my laptop around quite a lot and don't feel confident that the HDD won't fail because of all the motion.
My question is: Can I leave the HDD powered off until I want to use it? Thus saving battery life and reducing the risk of HDD failure from being moved around too much. I would like to be able to mount the drive when I want to access the storage and unmount it when it is not in use. Is this possible?
Info: MacBook Pro (13-inch Early 2011), Mac OS X (10.7.3)
This is the image I get on my iMac 2.4 GHz Intel Core Duo OSX10.5.4. I have repaired permisions and removed all login items. Once I move the cursor or open up a window the screen clears behind the cursor or window etc... It freezes up at least once or twice a day...
I started up again and attached another screen, the image was normal on both screens. But alone the iMac still starts up with the pixelated screen.
First of all I'm new here so just wanted to say 'Hi', its been great to see all the discussions on these forums and they help a lot with buying tips and troubleshooting so thanks.
Problem #1 I purchased a refurb 24" 2.8GHz imac early May and have been using it since then and so far other than the "normal" gradient issue and a brownish tinge around the edges of the screen it has been good.
Lately I've been using Aperture a lot and first started to notice that in some pictures especially ones with quite a bit of highlights like clouds that there are small hatch like patches in all the pics. I know it isn't the pictures but the imac screen itself as you can see it on the desktop as well. It only seems to be centralized in the upper left hand section of the screen and they seem to be lite purple/blue in color. And like I said its only in patches in certain spots on the screen. Don't know if I'm being over anal about this or is this a problem?
Problem #2 I switched to a solid blue background to check the above problem and notice that there is screen burn in of the top and bottom header in the outline of my firefox window on the blue screen. Between switching windows often and applications very frequently and not leaving the computer at all... what the heck? Not normal for imac screens is it? Heat issue causing burn in? Hasn't been an issue with any other LCD I've ever used.
By the way the imac came in a new white box and was wrapped like new in perfect condition but I popped it open without ever starting it once to make a hard drive swap and the thing was definitely a bit dusty inside so in now way was it just used for a couple weeks before being given back to apple.
I understand these machines burn images into screens sometimes, but they fade back to normal after a while. My issue is that its taking less and less time to burn images into my screen. It's so bad, I avoid using the left side of the screen because simply leaving anything there for a full minute burns the crap out of it. Oddly, this only effects the left third of the screen.
I remember taking it up to an apple store (not fun, considering none are near me. The address their tech support gave me actually went to a pawn shop.) but they simply told me to leave the itunes visualizer running every now and then.
Back then it was just mildly irritating. Now I cant do anything with that side of the screen! Would replacing the LCD resolve this issue?
Below is a picture taken from my motorola razr. I know it's bad, but that's all I have.
So I've had my 24" Al iMac ever since November 2007, good and everything until the past couple days, after extended use of the imac, everything is fine, screen is great, but when entering screensaver, its still great, its like a couple minutes or so into the screen saver when the top of my iMac's screen starts to flicker! When I move the mouse to get out of the screen saver, every thing is back to normal. It happens with all screen savers.
This may seem odd, but I think my iMac is melting. I started to clean my iMac with a simple cleaning cloth then i realized spots on the screen. The aren't really visible when the screen is on, but you can still kind of see them. Not only that, the quality of the images on my screen seems to be deteriorating. It is only visible under light. I have attached some photos, but i wanted to know if anyones iMac has done this before(regardless of size, but post it in case), and if apple will fix it?
My daughter has dropped her ageing MBP, bent the screen lid and now the screen is no longer usable. We have other Macs available to access the data on the screen if we could turn on Screen Sharing on the damaged MBP running Snow Leopard.
Computer starts (keyboard lit, music plays, caps lock light on), but no screen. I need to open and close 2 - 30 times before the screen will turn on. Once on, the computer works perfectly. I've tried PRAM and safemode reset.
im not 100% sure this is the right area to post this in but i have a 15 or so inch hp lcd monitor i wanted to use as a second screen for my imac via vga, so i was wondering if that kvm switch would alow me to have this setup
imac - (vga adapter) - Kvm switch - moniter and surround sound / xbox 360 - (vga adapter)
and the second part is... it says it is powered by bus does that mean it would be powered by the moniters or what?is that a bad idea? will it strain my imac or what.