IMac Monitor Black

iMac turns on but monitor styas dark. Thre light at bottom right comes on initially, but then disappears. Anyone know what's going on? Thanks.

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Similar Messages

  • My iMac monitor just goes black

    I have a 2009 27inch iMac with an external Samsung monitor.
    Out of the blue, the iMAC MONITOR just goes black. Like it went to sleep or something.
    This has happened 4 times in the last 2 weeks. (luckily I can restart the computer because the external Samsung still works.
    I restart the computer and the monitor works fine again.
    Help.
    Thanks.

    Hi.
    Screen goes totally black.
    The good news is, I read around and was advised to turn off the computer and unplug it, and plug it back in and start up. That seems to have fixed it. So far, so good.
    Thanks.

  • IMac monitor goes dark; 2nd monitor ok

    I have a dual monitor setup on my iMac (2009) running Snow Leopard (10.6.8).  The iMac monitor had been working great, but now it goes to a black screen.  I am able to access it briefly (for about a second) by lightly pressing the power button on the back.  The iMac monitor flashes on briefly when I do this and I'm able to quickly click on user.  I used this same method to open Settings and drag it over to the 2nd monitor to change the display setting to Mirror mode, so I'd have access to the dock on the 2nd monitor (Dell 2007WFP). 
    I have tried the following so far:
         checked cables
         restarted by powering off, pressing on/off button for 5 seconds, unplugging for 15 seconds.
         booted in Safe Mode
         reset PRAM (I believe this was reset, but I don't know for sure because I couldn't see anything on the monitors.)
    Other information:
         2.66 GHz Intel Core 2 Duo
         8 GB 1067 MHz DDR3
         NVIDIA GeForce 9400
    Thank you in advance for help with this issue!

    Replacing FBDIMMs would be today inexpensive and worth doing.
    No one knows if heat is an issue without your using thermal sensor monitor. Probably want to up the default fan speeds while at it.
    And because you don't have Lion+ then even more reason to setup a small maintenace volume on another drive with OS X basic system for repairs. In fact you should always have a bootable backup or two  you can rely on.
    Restarting may work, or it  may be you have now new issue with corrupt fies or directory that a safe boot even is no guarantee of fixing.
    When in doubt, try a clean new OS install on another drive.
    And FBDIMMs: $25 for a 2x2GB set on Amazon.com
    You want to get  the most out of what  you have, a small investment  in RAM,  maybe recycle those drives for 2-4TB units. And an SSD will have system responding better and perform better.
    My guess, the 5870 wasn't needed and was overkill and a 5770 for almost  half would have been more than adequate.

  • Monitor blacks out when booting with KVM Switch in the middle

    Hi
    I have attached my Xserve with an iMac G5 to a KVM Switch. When I boot up the Xserve the monitor blacks out after the apple logo.
    I know that the Xserve tries to autodetect the monitor. Apparently it fails in its job when the KVM is in the middle. Everything works well when I remove the KVM and connect the monitor directly to Xserve.
    Any ideas how do I disable the monitor autodetect feature - or something?
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    Hi all
    I did try that. No luck.. Strangely enough, I realized that when the server boots up, the login screen defaults to 85HZ refresh rate. I found a site that explains the plist file that you can change to force it to 60HZ. What is weird it if I boot the Mac connected to another LCD, then move the cable to the KVM, it works. It almost seems like when the mac is booting, it sends some sort of signal just before the login screen comes up, that screws up this KVM. Tried updating firmware, still in the process of speaking with the KVM support people...
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  • G5 HP Monitor blacks out, says No Input Signal

    This happens when the computer warms up, goes away after sleep, but always comes back. Problem compounded by the computer telling me my GeForce FX 5200 graphic card status is "No display connected." What stupid thing have I done or not done. Computer's new, a dual 1.8, so I don't know my way around it; not that I'm at all tekkie. Any obvious help come to mind? Thanx.

    I get the video back by either turning "Source" on the monitor off and then clicking it back on, or turning the monitor power off and then turning it back on. In either case, I'll usually get another five to eight minutes before the monitor blacks out again. If I repeat the process, the interval between blackouts gets shorter and shorter until I cave in, put the computer to sleep and come back in fifteen or twenty minutes, after which I get a pretty good run again, fifteen to twenty minutes. Because I do a lot of writing, it's a process of mental harrassment having my train of thought broken. I'm developing a flinch in anticipation, which sure don't make for limpid prose.
    I've only had the computer for two months, so it has never occurred to me to vacuum it. You really think that might help?
    Can't say how grateful I am to you experts for your attention and advice.
    Will

  • HT1529 how could i connect a xbox 360 to imac monitor?

    i would like to connect my xbox to my imac monitor to use it as a display.

    In general you would unplug the monitor from the Mac Pro and then directly connect the monitor to the xBox 360 (with the correct adapter cable, depending on which version of the xBox 360 you have). However, if you don't have permission from the owner of the lab to be connecting and disconnecting cables you shouldn't be doing that. Buy a cheap 1080p TV and use your xBox 360 at home.

  • Can I connect Mac mini to iMac monitor

    Can I connect a Mac mini to iMac monitor ? To view Mac mini files

    Hi Ricemail,
    You *may* be able to do so, depending on the specific models of your iMac and Mac Mini, using a feature known as Target Display Mode. You may find the following article helpful:
    Target Display Mode: Frequently Asked Questions (FAQ)
    http://support.apple.com/kb/ht3924
    Regards,
    - Brenden

  • How to share iMac monitor

    I have a G3 B/W with a CRT monitor OS 10.3.
    I also have a iMac 20” OS 10.4
    How can connect both the G3 and imac so that I share the iMac monitor with the G3 CPU? I would like to get rid of the CRT.
    If this is possible would I use only one keyboard, or would I still have to use 2 keyboards?
    Thanks
    Happy 2009

    These machines cannot share a display. No iMac—which is a completely integrated computer and display system—can be used in place of the display with another computer.
    What you can do is run a 'headless' configuration: one in which your Power Macintosh G4 does not have a display, but is otherwise operable. Using a product like Apple Remote Desktop, you can control that machine from your iMac remotely.
    There is a discussion are for ARD located here.

  • Can I use the iMac monitor to watch TV?

    Am I able to connect the cable to the iMAC monitor so I may watch TV?

    Yes but you need some third party hardware to do so, visit www.elgato.com and select a tuner for your needs.

  • Use imac monitor with ps3 or wii

    Hi all,
    I have an imac 24" and i have wii and ps3.
    Which device can I use to connect my imac monitor to these console?
    I saw on the web the Elgato Hybrid device, but isn't the right solution for ps3.
    Best regards...

    you can get the canopus ADVC110 and plug in the yellow RGB cable into it, then plug the device via firewire 400 into your computer. then open up iMovie 09 and press import video, but don't record or anything. just play.

  • Use imac monitor for laptop display?

    Just curious, I've got a new mac book pro but the screen size just isn't sufficient for some applications. My 24" imac works great for it, but since this is my work laptop I'm not supposed to put these files on my home computer (not to mention the programs). So, I want to know if there is any way to use my imac monitor as a display for my laptop.
    I know there isn't just a DVI in port on the imac, but there's got to be a way to do this... If it were a PC I'd say remote desktop.

    christie.cone, Welcome to the discussion area!
    Not directly the iMac does NOT have a video input.
    However, you might want to take a look at ScreenRecycler.

  • HT201343 can i turn off my imac monitor while airplay from it to my tv?

    can i turn off my imac monitor while airplay from it to my tv?

    You can just turn your brightness down to 0.  Only thing I have figured out so far.

  • THE IMAC MONITOR

    HELLO ALL,
    IS THERE A WAY TO TURN OFF THE IMAC MONITOR AND USE AN EXTERNAL MONITOR INSTEAD. I INITIALLY WANTED TO EXPAND THE DESKTOP, BUT FOUND OUT THAT I COULD ONLY MIRROR IT. SO, I AM EXPERIMENTING WITH THIS IDEA. IF ANYONE WOULD BE SO KIND AS TO GIVE GUIDANCE I WOULD BE GREATLY APPRECIATIVE.

    Hello and Welcome to Apple Discussions. 
    Some iMac G4s can be hacked to extend rather than mirror display. It could permeanently damage your iMac if it goes wrong - i.e. power fails mid install.
    There are also iMac G4s out there with their screens removed. So these things are possible.
    Google for 'Screen Spanning Doctor' and 'The Mac Orb'
    mrtotes

  • Screen of new iMac goes black

    I was amazed when the screen of this intel based iMac went black after trying to open a Word document. Since then it has happened several times when I have inadvertently tried to open such messages. I then have to shut it down and restart in order to do anything on the computer. Any cure for this problem? Thanks

    Hi-
    Please clarify-
    Exactly which version of Microsoft Word do you have installed on your computer?
    Do you by any chance have Parallels or VMware installed on your computer (in other words, are you running Microsoft Windows on your iMac as well?)
    When the screen goes black, does the computer still appear to be functioning? What happens if you do the following when the screen is black: press and HOLD the command key down, and then press and release the tab key once.
    Also, what happens when you just try to start up Microsoft Word normally- not by double clicking an attachment, but by double clicking on Microsoft Word in the finder?

  • Portg Z30-A-1E1 - External monitor blacks out randomly

    Very annoying problem - every now and then the monitor blacks out for 2 seconds and comes back.
    Monitor is powered all the time.
    HDMI cable changed twice and does not solve the problem.
    Seems like a change of resolution or a reset - can the problem be in the graphic card? Otherwise maybe the HDMI port itself detecting strange stuff?
    Please help I'm getting crazy as I work 90% of the time on external monitor.
    Thanks
    MAx

    Originally Posted by ammtosh
    I would try the French service, Toshiba is an international company. If you have a problem with your Italian car in France you go to the French workshop...
    Yes maybe you are right. Still, annoying not being a fluent French speaker to have to deal with them.... and with 90% possibility that they'll say "if you bought in Italy you should talk to them". I'll try.
    PS: another ridiculous thing: you buy a product that has a problem, and you need to pay to call the support service? Really not acceptable....
    The dark side is strong.... actually, I start wondering which is the real dark side. Theory of relativity!

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