MBP doesn't detect external diplays?

My MBP will not detect external displays.  I tried to install some updates, like apple support said to do, but errors occured, and the OSX update couldn't be installed.  I had computer hooked up to my tv, working fine, up until a couple weeks ago.  HELP?!?!

Just to be clear:  When I select the propper HDMI input on the TV, the screen on the MBP flickers blue for a few seconds, so there's got to be connectivity, right?

Similar Messages

  • HT5167 after I updated to 10.7.4 my macbook pro 2011 doesn't detect external display anymore what should I do?

    after I updated to 10.7.4 my macbook pro 2011 doesn't detect external display anymore what should I do?

    after I updated to 10.7.4 my macbook pro 2011 doesn't detect external display anymore what should I do?

  • What is apple doing. This macbook pro doesn't detect external display, doesn't detect my wacom..

    This is awsome. Cant work on this laptop... Doesn´t detect nothing.

    Hey there mrlrsm,
    Welcome to Apple Support Communities. 
    The article below provides troubleshooting tips that may help you resolve the issue with your MacBook Pro no longer recognizing the external display.
    Apple computers: Troubleshooting issues with video on internal or external displays - Apple Support
    Ciao,
    -Jason

  • MBP does not detect external monitor on DVI connection...

    (2007) MBP C2D 2.33 15", OSX LION 3gb.  Worked fine till about 3 days ago (right after installing the last round of updates).
    My external monitor now fails to connect on DVI cable. Since it also has VGA, I was able to test this way with a DVI to VGA adapter and that worked perfectly, but the vga gives a lower resolution. Having estalished that the graphics adapter and the monitor were okay, I looked for other issues.
    Starting the MBP in clamshell mode, it found the monitor on DVI. Then restarting normally, it all worked fine, UNTILL the MBP went to sleep. when it awoke, no external. Plugged, unplugged, trashed display prefs, nothing, though it does still work via DVI-VGA.
    I don't think having to clamshell everytime is a workable solution, but I NEED MY DESK SPACE!
    Any thoughts?

    Yesterday, having had the problem become far worse, I too tried PRAM/NVRAM clearing (SMC reset so many times I can't count them). Then, in desperation I purchased TechtoolPro 6 and ran it. Everything s working well now, and in fact the video issue cleared up while techtool loaded, it didn't even wait for me to run the thing!
    More: About 3 weeks ago, I made a HardDrive image from an older white macbook so I could repair its hard drive. After doing that job, I (thought I) deleted the image from my MBP, but the disk still showed 80Gb used that wasn't before. So while I thought I had 130GB free, I was only showing 50. After running the directory rebuild, I now have 175gb Free! So the directory was keeping track of 95GB that WASN'T there! I suspect this had something to do with my problems.  Then running the Defrag and Optimization routines, my 2007 MBP is running like a brand new machine. Other things that had been buggy (like the right click on my magic mouse) are now working like they should.
    Recommended highly!

  • Doesn't detect external monitor

    Hi, I'm trying to connect my Imac to my tv (sony) but when i connect o dont get the blue screen, it's like my imac doesnt detect the monitor, but on the tv the HDMI port becomes active, no picture or anything.
    I tried my Imac using my friends tv (samsung) and there were no problems,
    Has anyone heard of this problem or anything like it?

    Just to be perfectly clear, you are connecting to the Dell from the Mac using a DVI port on the Dell, not a DVI to VGA cable, right?
    So if you hot plug the cable, meaning both the Mac and the Dell are switched on, the Mac doesn't react at all to this? If that's the case, I would suspect a bad cable, bad adapter or a bad connection somewhere. You might also have to manually switch the Dell from looking for a signal over its VGA input to looking for a signal over its DVI input. There may be a front panel button labeled SOURCE for this, or else you may have to go into the Dell's menu system to make the switch.

  • MbP doesn't recognize external HD anymore!?

    Hi,
    I know there are some disscusions about this topic, but nothing is really like mine problem I think.
    So my problem is; suddenly my mbp did not recognoze my external hd anymore. I was watching a serie from my EHD, and I wanted to click to the next episode.
    My mbp said; 'external hard drive in 'save mode'. So I tried to get it back through disck utility, I checked my settings in finder. I tried to start up my mbp a coulpe of times. Tried to start it up in save mode, single user mode and all the other tricks. Nothing worked.
    Then my seconds problem came up. My mbp got stuck in the save mode. It did not wanted to start up at all. So I made a appointment at the apple store to get it ficked. They said to me to try to start it up with the option key.  So that I can start it up from the right harddrive (witch was my external probably)
    So I did that and it worked. Made a back up of course. But my mbp still does not see my EHD. no where. Not in disck utility or anything.
    I know my EHD still works, because I see the light, and hear it somethimes. I also tried to let it work with a other usb cable and other inputs.(it did not work)
    I want to try to solve this problem by my self firts before I make a new appointment at the apple store. but I need a little help from you guys.
    Does anyone know how to solve this problem, anyone with experience with this?
    Please help me out here please.
    Thanks allready!

    - Seems like the HD died.
    - I do not understand what yo mean by
    There is an offer to copy the contents of my hard drive to another hard drive, but only if I erase the target drive?????
    How did you get the Disk Utility?
    Did you try booting to Recovery?
    OS X: About OS X Recovery - Apple Support
    You should be able to select the disk and try to repair it. Nothing should be listed about moveing it
    This is the Mac Mini desktop forum

  • Just connected Time Capsule - MBP doesn't detect it

    The TC is connected to my MacMini.  It is configured to boost my wireless signal.  I connected the ethernet plug from the wall outlet to the WAN port on the TC.  Another ethernet cable is connected from the TC to the Mini.  I connected a printer to it and it prints from the Mini and the MBP.  The MBP found the Time Capsule network and I was able to connect to the wireless network.  When trying to set up the MBP to use TC as a Time Machine disk, it does not detect it or any Airport devices.  Software is up to date on the Mini, TC and MBP.
    What am I missing?

    Taking it to work tomorrow to see if another computer can recognize the Airport Express is an excellent idea!
    Possibly more likely than a defective Airport Express is that you have either a defective Airport card installed into your G4, or the card wasn't installed properly. For a start:
    - pull out and reseat the Airport card in its slot inside the G4
    - pull out and reseat the internal Airport antenna cable connector, which of course has its own socket on the Airport card itself.

  • Qosmio X series doesn't detect external camera

    Hi,
    I need to connect external camera to my Qosmio. I installed allready the software, but the application see the internal camera only. How to disconnect the internal camera?
    Thanks for your help.
    K-July

    You can disable each device in the device manager
    Go to control panel -> device manager
    Search for the internal webcam, click right and choose Properties.
    Now switch to the tab Driver and click on the button Disable.
    But I'm wondering about the external wecam software.
    I dont know what webcam or software you want to use but from my point of few after the connection to USB port, the external webcam should be recognized by installed software.

  • HT3986 my new macbook pro doesn't detect usb driver

    During Bootcamp installation, MBP doesn't detect USB driver before/after finishing virus scan checking.
    system finder has USB driver directory as the below snapshot, but "NO USB Drive" warning continuously.

    During Bootcamp installation, MBP doesn't detect USB driver before/after finishing virus scan checking.
    system finder has USB driver directory as the below snapshot, but "NO USB Drive" warning continuously.

  • Not detecting external display after waking up MBP from sleep mode

    I am a recent owner of a MBP and enjoying it. However, one problem that I can't seem to find a solution to is the external display problem after sleep mode.
    When I first boot up the Mac and plug in my Dell external monitor via the mini adapter, there is no problem with detection or display. However, every time I put the MBP in sleep mode and then wake it up again, the external monitor does not "wake" up and my MBP only displays my normal screen on the Mac.
    I tried to 'Detect Displays' to no avail and the only solution is unplugging the mini connection and plugging it back into the MBP for the MBP to re-detect the external monitor.
    Although this is a quick fix in itself, I do not want to wear out the mini port by doing this every timeI come out of sleep mode. Any solutions so that the external monitor will detect the MBP waking up from sleep and display properly? Thanks!

    And same problem here.
    Using a MBP 2.66 i7 with a Dell 3008WFP that's connected to the MBP through DisplayPort. It works some of the time but once in a while (only been using the new MBP for a couple of days now) the monitor won't come out of sleep mode. Turning it off/on causes OS X to completely ignore the monitor. I was able to get this setup to work again by pressing 'Detect Displays' in the System Preferences pane but most of the times that doesn't help. The only sure way to get the monitor working again is by booting into Windows through Bootcamp, Windows is able to use the monitor, if I reboot after that OS X sees the monitor again.
    Also saw a magenta line/stripe on the left side of my monitor and the monitor sometimes makes a buzzing sound when connected to the MBP through DisplayPort. That's what you get by using bleeding edge tech I guess :\ Only alternative is buying the mini-DP to dual-DVI connector but paying $99 just to be able to use an external monitor is rather insane. Besides that lots of users are having problems with this adapter.

  • External hdd doesn't detects from cold start

    My external (USB) hdd Transcend 250Gb doesn't detects if it was plugged before I turn on my system (not shown by lsusb). It detects and mounts fine if hotplugged.
    Bus 001 Device 003: ID 152d:2329 JMicron Technology Corp. / JMicron USA Technology Corp.
    who's guilty? hal? or myself? ;)

    cucullus wrote:
    My external (USB) hdd Transcend 250Gb doesn't detects if it was plugged before I turn on my system (not shown by lsusb). It detects and mounts fine if hotplugged.
    Bus 001 Device 003: ID 152d:2329 JMicron Technology Corp. / JMicron USA Technology Corp.
    who's guilty? hal? or myself?
    Maybe neither, I believe some motherboards have a buggy bios that can't initialize usb devices during boot properly (some devices at least) and then things will fail latter on. Try to look for a bios update or google for some other people with the same problem.

  • Lightroom 4 doesn't detect Photoshop Elements 9/10 for external editing

    Hi,
    I own Photoshop Elements 9 and recently decided to install trials of Lightroom 4 and Photoshop Elements 10.  For whatever reason, Lightroom doesn't detect Photoshop Elements 9 or 10 for external editing.  I need to make sure this functionality works before proceeding with purchasing Lightroom and possibly Photoshop Elements 10.  Does anyone know how to resolve this issue?
    Thanks,
    Matt

    List of supported Nikon cameras. I think you're out of luck for tether-shooting.
      Nikon   
    D3
    D3s
    D3x
    D90
    D300
    D300s
    D700
    D5000
    D7000
      Notes on Nikon cameras   
    If you trigger the shutter with the tether bar capture button, the image must finish downloading before another photo can be captured. Triggering a capture with the shutter release button on the camera does not have this limitation.
    Images do not save to the compact flash card. They are only downloaded to the computer.
    Only one Nikon camera can be attached at a time.
    Windows 7, Windows Vista, and Mac OS X 10.6 are not officially supported for the D3x, D90, and D5000, but they can still work.

  • Why doesn't my MBP recognize my DVI external display?

    After using my MBP and 30" Dell 3008WFP monitor for about 2 years... the system quit recognizing the display.
    No dropping the MBP, no software updates, no unusual activity, no cable changes... nothing. One day it works the next it doesn't.
    I've read so many blogs earlier today with people fixating on cables and adapters, but I'm not sure they have much to do with this one... because nothing has changed in my experience, but the MBP no longer detects the display and the display no longer detects the MBP?
    I've tried changing eerything, but no luck. Can anyone help me sort this out? Thanks in advance for your replies...

    You need to set them up via 'system preferences'.
    On your pop up screen go to preferences and then to print&fax
    From there use the + button to add a printer of your choice...
    Be aware that some printers do not have automatic drivers for mac and therefore you may need to get that from the internet... unfortunately most makers treat Windows as priority still!
    I have a very expensive pair of printers in my office the B&W works and the Colour cannot use a Mac driver, go figure!

  • MBP doesn't recognize FPD2185W Gateway Monitor

    I've had the previous model of the MBP and with the VGA adapter, it worked fine with the FPD2185W Gateway monitor. Now with the newest MBP, and with its new display port requiring having to buy a new adapter, the only thing I can do is mirror the display, and the display flickers and changes color at random intervals. Once, after going toggling mirroring displays and detecting them, I'll be able to actually have the external monitor act as an extra monitor, but there's no rhyme or reason to this. I'm sorry, but if I'm being forced to pay money to buy an adapter so Apple can push its new display port, is it too much to ask that it works with existing monitors?

    Thanks for your input.  Unfortunately, none of this works at all.  I've tried every possible variation on booting up but the sys pref/detect displays doesn't detect another display.  The strange thing is that once in a while I can get it going but for only a split second.  This is definitely not a cable problem, and the fact that it worked at one point makes me think that there is something inside that is loose or unstable.

  • Macbook doesn't recognize external display

    I am trying to use my tv as an external display. My Intel Macbook doesn't detect my tv as an external display, this is because I am using an unconventional connector (VGA to RCA connector).
    Anyways, I am wondering if there is a way to force my laptop to output video over the mini-DVI out port on my computer. I am thinking a utility or something would be able to do it.
    This is my setup:
    mini-DVI out from computer>
    mini-DVI to VGA cable from apple>
    VGA to RCA(yellow video cable) (from hong-kong)>
    AV in of TV (RCA yellow video cable)
    I realize that the VGA to RCA makes my computer not detect my tv, I am looking for a work-around.
    Macbook 2.0GHz (White)   Mac OS X (10.4.8)  

    You just need the Apple mini-DVI to video adapter. It has both a composite and s-video output.

Maybe you are looking for

  • Lens Blur not showing in After Effects CC 2014 Release

    Hi, As I'm new to the After Effects - Video Copilot environment I can't figure this out that why, after having the plugin in the Effects folder I can't see Lens Blur in Effects>Blur and Sharpen>Lens Blur? I'm working on the project named ParticleDesi

  • Which codec do you use?

    So I figured I asked the community and get a feel of which codec(for Quicktime) you use when rendering from Shake and why? I'm trying to find a nice balance between quality and size for importing Quicktime movie into iMovie. It seems I can't get the

  • LSMW for MB1B

    Hello, Can any one help me LSMW for MB1B tcode. Header details : Movment type,Plant,storage location Item details     : Receiving plant,Mat no ,qty ,batch no. Regards, Chitra

  • Wierd error any tips?

    hey guys am getting a error in my app which is wierd, it says E:\test>javac Example.java Example.java:126: cannot resolve symbol symbol : variable HeightField location: class Example heightString = HeightField.getText(); does unresolved symbol mean i

  • [ANN] FlexPMD 1.0 - FlexCPD 1.0 - FlexMetrics - FlexPMD Eclipse plugin has been released

    Finally, we got there... FlexPMD 1.0 has been released a couple of minutes ago. Here is the release note The big highlight of that release is: - Eclipse plugin - FlexMetrics - FlexCPD improved I hope you will like, and thanks to Xavi Beumala for deve