External monitor for laptop not working

I just purchased this laptop and am trying to hook up an additional monitor.  When I install the HDMI cable laptop screen goes dark and monitor screen remains dark.  If I unplug the HDMI cable the laptop screen comes back.  If i try to "adjust" the display in control panel i can only see the laptop screen.  If I turn off external monitor and turn back on a message saying cable not attached is displayed before screen goes dark.  I'm really in dark - need help. Thanks 

The F4 was the solution for getting the laptop screen back, but i'm still unable to see anything on the external monitor.  I have it recognized in the Control panel and all connections are correct.  Could it be a setting with my NVIDIA GTX 950M video card?  If so how do i change.  By the way i checked the drivers for this and they are up to date. Now only half in the dark! LC

Similar Messages

  • How do I use my late 2011 iMac ( with thunderbolt) as external monitor for laptop/Xbox or other device with hdmi as output.

    May be this question has been asked thousand times. how do I use my mid 2011 iMac ( with thunderbolt) as external monitor for laptop/Xbox or other device with hdmi as output. if apple hasn't removed that feature and has just moved that functinoality to thunderbolt then how can I use it. currently there is no laptop available with thunderbolt output. no 3rd party converter available. whats the use of having feature on latest functionality if we cant use it. I wish they would have made one port has mini-dvi and other thunderbolt for backward compatibility untill some vendor comes up with converter.

    It Says :
    Mac (21.5-inch, Mid 2011) and iMac (27-inch, Mid 2011) and later computers support Target Display Mode via Thunderbolt to Thunderbolt cable (2 m) when the source is another Thunderbolt-equipped computer.
    Name one computer model/vendor which has thunderbolt as output for display + audio. this is so stupid to move to new technology without availbility of its compatible devices.

  • Encore WT8-A - External monitor doesn't not work

    Hi all,
    I have problem, when I connect an external monitor to Toshiba Encore WT8-A with an HDMI cable, Windows does not recognize it. I tried to use monitors from Samsung, Philips and LG.I use a standard HDMI cable. The cable is OK tested on other devices.
    win 8.1 (all updates)
    bios 1.6
    All the drivers used from the Toshiba Service Station
    Thank you for help.
    RM

    Hello gaizkot,
    We've an article that can help get your MacBook Air and your display working together.
    Apple computers: Troubleshooting issues with video on internal or external displays
    http://support.apple.com/kb/HT1573
    Cheers,
    Allen

  • External monitor Syncmaster 2494SW not working after 10.6.7 update

    External monitor Samsung Syncmaster 2494  SW stopped working after 10.6.7 update on 2011 MacBook Pro. I'm using miniDP-DVI adapter. The monitor shown correctly in Display Properties with right modes and name. MackBook recognizes connection but the monitor goes to PowerSave mode (LED indicator blinks).
    Safemode boot, SMC reset, PRAM reset did not help.
    Exactly the same setup works perfectly under 10.6.6.

    HERE IS THE EASY FIX SOLUTION FOR THIS PROBLEM GUYS:
    I have an 15inch MacBook Pro that I've just installed Snow Leopard 10.6.3 on.
    Prior to this install, I've had it hooked up to my Samsung SyncMaster 2243 via an Apple MDP/VGA adapter and a third party VGA cable. It has been flashing on and off a black screen every now and then for the past 2 years and I googled that it was just a crappy communication between the MBP and the Samsung... but now since installing 10.6.3, the Samsung display just flashes the desktop for a second then turns black for good - occationally flashing analogue/digtal prompt display. Tried everything for hours. Nothing worked, thought I was gonna have to buy a new all Apple VGA lead then came across Michael's above solution. Tried it and it worked IMMEDIATLY!!! And the monitor doesn't flash black anymore AT ALL!! Whoo-hoo!! Thanks heaps.
    WHAT TO DO TO FIX:
    Go to => System Preferences  => Energy Saver => change graphic settings to Higher Performace.
    Cheers!!

  • External monitor with imac not working

    Hello.I have problem with external monitor connected to my imac 27 via mini display port to vga connector. It was working perfectly but around month ago it suddenly stopped. It looks like my monitor doesn`t get any signal from imac, at least that`s what is says on external monitor.. also, when monitor is connected my mouse is jumping all over the place. I`ve been looking everywhere but i couldn`t find solution to this problem and i know there are many people having the same issue. Did anyone find solution?

    I have my 24" connected to a 32" TV via DVI and have had no problems thus far.
    When you open display preferences is the external display detected? If so, try switching between mirror and extended to see if it comes on.
    The only other thing I could suggest is to try another VGA connector and/or cable. The fact the mouse goes erratic sort of points to there being the problem somewhere in the connection. You might want to try DVI if your monitor supports it.

  • External monitor for Retina Macbook Pro

    Hello,i want to buy an external monitor for my late 2013 rMBP.I tried two models (Dell U2414H and LG 23MPQ65-P),none of them worked perfectly.On both monitors colors were washed, without contrast, the font was blurry.So i decided to return the monitors and also I sent the laptop in service for several diagnoses to see if there's something wrong with my Macbook.
    I see that there are many models of external monitors  that do not work correctly with rMBP.
    I want an 23-27", FullHD, IPS monitor that would cost around 400$.
    Can you tell me some suggestions?
    Thanks.

    Jenn.Y wrote:
    So which input ports are best to use? I know there's ones like HDMI and DVI, so which is better to use?
    Modern monitors will likely have HDMI, DVI, and/or Display Port inputs. If you use HDMI then you will not need an adapter since your computer will have a HDMI port out. You will just need a HDMI cable. If you use DVI you will need a mini display port to DVI adapter and a DVI cable. Dual Link DVI is best but you will need a mini display port to Dual Link DVI adapter and a Dual Link DVI cable. If your monitor has a Display Port input you could use that.  vga will produce bad results compared to all the digital ports.
    Your selection depends on the monitor you get. To get the best display resolution use what provides the monitor with video at the monitor's native resolution.
    Use Google to compare the specifications of the different ports https://www.google.com/search?q=display+port+comparison+dvi+hdmi+dual+link

  • Need external monitor for Portege R500

    The screen on the R500 (PPR50E-01301TEN) is fine for use for an hour or two on the go, but if I use it persistently through the day, I get a bad neck and headaches (may be the angle that you have to look at it as much as its small size). So I want to get external monitors for it at work and at home. The home one would preferably be an LCD TV.
    The trouble is, Windows tells me that the supported widescreen resolutions for the external monitor are 1280x768, 1920x1080 and 1920x1200. Linux only wants to offer me 1280x800 or lower, although I might be able to fix that with a bit of tweaking. Assuming Windows is right, does anyone know of an 18-21" widescreen monitor or TV with one of the supported resolutions as its native resolution, or even as a supported resolution? I can't find anything.
    It probably needs to be 1920x1xxx, because 1280x768 is going to be pretty grainy close up on a 18"+ monitor. Why aren't any of the intermediate resolutions common on widescreen monitors (e.g. 1440x900 or 1680x1050) supported? If it can do 1920x1xxx, it should be able to do them.

    As far as I know Port Replicator cannot make things better. This external device just past through the signal that comes from the notebook itself.
    Which resolution you need for your monitor?

  • How can I deactivate Adobe Acrobat 8 on a laptop with a monitor that does not work?

    Or is there some work-around I can use?  I got a new laptop and have reinstalled the program but I keep getting a pop-up that wants me to register it again.  I have but it keeps popping up.  I read in the user's guide for this version that "Note: If you want to install the software on a different computer, you must first deactivate the software on your computer: Choose Help > Activation > Deactivate."  I figure that that is what the problem is.  So now what do I do? It is a little hard to "choose" when the monitor is black.
    As an added complication I am now getting an error message on the pop-up that tell me "A problem was encountered while trying to send information over the Internet."  Help!!!
    I am currently using a Sony Vaio T Series Ultrabook now with Windows 8. My old laptop was a Compaq and was using Windows XP Home Edition.  It was about 10 years old.
    Thanks in advance for your help.
    Aimee

    Can you plug in a remote monitor? You may have to use the Fn key with the screen icon typically along the function keys to change to the external monitor. If that works, then do what you need. You might also try putting the HD in another machine and see if it works there.

  • I've got a MacBook pro 15' running 10.6.6. I want to use an external monitor for my graphic design work running Adobe software and thought I'd try an HD TV. I ran a Mini Display to HDMI lead to the TV but the picture quality was disappointing.

    I've got a MacBook Pro 15' running 10.6.6. I want to use an external monitor for my graphic design work using Adobe software and thought I'd try an HD TV. I ran a Mini Display to HDMI lead to the TV but the picture quality was disappointing. I also tried a Mini Display to VGA lead and that wasn't much better. I tried all variations of resolutions in System prefs - Displays but nothing helped. Am I getting something wrong? Thanks all.

    In addition to pixel density, you are up against the translation driver card in the TV.
    If you read the fine print of computer-resolution-capability in the TV user guide, you will see a chart as tall as the manual page.  At the top is the smallest resolution capable, at the bottom is the full use of the 1080p in the TV.
    Mac falls into the top 25% of the page, maxing out at 1366x768 often.  This is because the TV control card is expected to do too much of the work, but is not designed for computer-monitor processing.
    I looked at the resolution charts on 2 TVs before deciding to buy a 1080p LCD monitor that has a TV interface/connector.  Computer monitor first, TV second.  But the thing is only 27 in.  Good thing TV is not as important to me as it is to others.

  • MY EXTERNAL SPEAKER PORT IS NOT WORKING for hp envy

     MY EXTERNAL SPEAKER PORT IS NOT WORKING .WHEN I CONNECTED TO A EXTERNAL SPEAKER ,THERE WERE NO SOUND AUDIBLE.SO WHEN I DISCONNECTED THE CABLE FROM PORT,I WAS ABLE TO HEAR WITH THE IN BUILT SPEAKERS.EXTERNAL SPEAKER IS I GOOD CONDITION.I CHEKED WITH MY HEAD SET ALSO.IT WAS NOT AUDIBLE.MY LAP IS HP ENVY .KINDLY HELP

    Hi ano87, welcome to the HP Forums. What is the model or product number? What version of Windows is installed?
    Guide to finding your product number
    Which Windows operating system am I running?
    TwoPointOh
    I work on behalf of HP
    Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
    Click the “Kudos, Thumbs Up" on the bottom to say “Thanks” for helping!

  • Best external monitor for text editing

    Hi all - I have a 2011 MBP and want to connect it to an external monitor (+ mouse and keyboard) for text editing and web browsing. Text clarity is very important to me. First I've tried to connect  a mainstream Acer monitor, and then Lenovo ThinkVision eIPS LT2452pwc at work, and in both cases Mac fonts looked somewhat "fuzzy" where Windows and Linux fonts looked nice and sharp. In all cases I've used native screen resolution. There is nothing wrong with Laptop either (I tried a couple), and it has probably to do with different antialiasing algorithm that Apple is using, which looks good on higher pixel density laptop panels, but not that great on exteranal monitors.
    So... any advice from those using Macs with external monitor for text tasks? Obviously there are Mac displays, but I have some concerns about the glare. Then  I heard good feedback about Dell UltraSharp and NEC IPS monitors. Trully appreciate your input for somebody new to Mac.

    Yes, I did get Dell Ultrasharp U2713HM. I am happy with it with one caviat (which would be the same for 27 Apple monitor). The picture quality is absolutely amazing - the text is very shart and clear, I can't imagine it to be better. The color is very good and natural, plenty of brigtness and contrast to produce a good picture in any light conditions, plus *no glare* screen surface, arguably making this monitor better than the Apple monitor.
    The somewhat unexpected caviat is that since this monitor packs pretty high resolution in a 27" screen, the text appears smaller than on most other monitors (but would be the same as on Apple 27" monitor). It even *appears* smaller than on my 13" Macbook Pro, however at closer examination, that turned out to be not true. The text on the monitor is actually bigger than on laptop, but looks smaller since typically the external monitor is farther away from the eyes than a laptop monitor.
    At first I wanted to return the monitor and exchange for smaller and lower DPI (read bigger text) 24" Ultrasharp, but then got used to my 27" monitor and decided to keep it. Hope this helps.

  • External Monitor for 13 inch Macbook

    Hi, I am thinking to buy an external monitor for my Macbook. Can anybody suggest me what should be the right size monitor for my laptop? What other properties should I consider? I want a smooth display like my Macbook.
    Thanks in advance....

    I use the Hanns-G 22" widescreen monitor with the mini-dvi -> VGA. It looks pretty good as an external monitor, not great, but pretty good.
    The upside to this monitor, besides being totally huge and satisfying, is that it comes with HDMI input. So we got a DVD player with HDMI and now we have upconverted 1080p movies for $400 total investment, plus a nice external monitor that works perfectly with both macbook and macbook pro.
    The Samsung will be a nicer monitor, but $200 for a 22" with HDMI was too good to pass up.
    http://www.newegg.com/Product/Product.aspx?Item=N82E16824254024
    Brian

  • What resolution do I need in an external monitor for my 15" G4 Powerbook?

    Hello mac friends this is my first post I really hope someone can help me out. I need to get an external monitor for my 15 powerbook g4 1.67 w/ 64 mb graphics card. I can not find any monitor on the market whos' native resolution matches that of my g4 (1280x854). Do I need to match the native res? I ideally would like a widescreen b/w 20 and 23", though I am not crazy about the apple displays (mainly the $). I am trying to figure out what native res I need to be looking for in an external monitor, etc. Anyone who can advise would be greatly appreciated!!! Thanks- Jon
    PowerBook G4 15inch 1.67ghz   Mac OS X (10.4.9)   low res, 1.5gb ram

    The fact that you don't need to match the native resolution disguises a great and valuable feature: Your PowerBook can drive monitors higher than its native resolution. Check the specifications for your PowerBook to see how high it can go. (There's a Specifications link at the top of this page.)
    For example, my PowerBook G4 native resolution is also 1280x854 like yours. I bought a 20" Apple Cinema Display which is 1680x1050. Is that a problem? No, it's GREAT. Because I didn't just double my screen space, the external more than doubled it thanks to the ability of the PowerBook video card to go beyond the native resolution. My PowerBook's specs say I could run a monitor up to 2048 by 1536 pixels. (Many Windows laptops have the same capability.)
    You can go to any computer store and buy just about any monitor that has a DVI or VGA port on it, that is within the resolution range for your PowerBook, and it will work. Dell, Samsung, NEC, etc. should all be OK if you want to save money. DVI is better and plugs in directly, but if you buy VGA, you will need to use the VGA-DVI adapter that came with your PowerBook.

  • Imac as external monitor for windows Notebook

    Hi,
    I want to switch from my Windows Pc to a mac for private use.
    I prefer the new iMac (2011) 21,5" but I could not get an definite answer (not even in my local apple store) if it is possible to connect an existing Notebook (with VGA Mini-d-sub or DVI connector) to the new iMac in order to use the iMac as an external monitor for the Notebook.
    I definitely need this for my business work in my home-office so this information is vital.
    If ist is not possible I have to take the macMini and stay with my standard monitor.
    Can please someone tell me if it is possible at all and if so, how it can be done.
    I searched the internet and only found out that it was possible with the older 27" model but no information for the 2011 21,5" so please help!
    Thank you in advance for your Support.
    Celindir

    Hi,
    Sorry to say, but ...
    The 2011 iMacs (21.5" and 27") can only be used as a second display via a Thunderbolt-to-Thunderbolt cable.
    The 2009 and 2010 27" iMacs can be used as a second display via a DisplayPort connection.
    http://support.apple.com/kb/TS3775 andhttp://docs.info.apple.com/article.html?path=Thunderbolt/10.6/en/30822.html
    Stefan

  • Can i use my 21.5" imac as an external monitor for my macbook pro?

    I have a 21.5" iMac (with Intel processor) that I'm trying to use an external monitor for a new Macbook Pro.  Both machines have a thunderbolt input.  I bought a Belkin mini displayport to mini displayport connector, but my macbook is not displaying on the iMac.  I saw videos online showing this done with the 27" iMac, saying you just needed to press Command+F2, but that is not working for me.  I can't seem to find any posts confiming if I can use my 21.5" iMac this way though.

    https://discussions.apple.com/thread/4082303?start=0&tstart=0

Maybe you are looking for