Macbook not recognizing mini dvi to dvi adapter

Hi,
I have a 2011 macbook pro, i have been using the mini dvi to dvi adapter to connect to a dvi to hdmi cable into my tv. It has worked for the past 6 months since i have owned my mac but just recently nothing happens when i plug the adapter into my mac. My friend has the same setup and nothing happened either when i plugged his into my mac so im thinking it is something to do with the computer thunderbolt port? any suggestions? thanks.

Here is an Apple article on the subject of having no video on an external monitor. It's written about the Mac mini, but it applies equally to any other Mac.
http://docs.info.apple.com/article.html?artnum=301345
And here is another Apple article that is more generalized and with fewer suggestions, though it might be a good place to start from. Good luck.
http://support.apple.com/kb/HT1573

Similar Messages

  • Really frustrating - Macbook not recognizing built-in ethernet cable

    I am a college student who purchased the macbook one year ago
    My macbook is not recognizing the ethernet cable plugged into it.
    I thought it was the ethernet cable itself but I tested my roommate's cable and it wasn't also recognized (his computer's internet works fine)
    This is frustrating because I am relying on the college wireless and the signal is flaky at best from my dorm
    I am guessing that either some harddrive or software is messed up
    Anyone can help me?
    Do I have to go to the apple store? My warranty is expired and a very busy semester is about to start so I don't want to send it in for a long time

    Have you used the MacBook in multiple locations in the dorm (on the same subnet)? If you connect through a mini-hub or -switch (rather than plugging directly into the Ethernet port provided by the school), the hub or switch may be holding on to the MacBook's MAC address even when the MacBook is disconnected. When you then plug in in another room, the school's networking equipment may think that the same MAC address (the same computer) is connected on two ports at once -- which just doesn't work. You may get an IP address, but be unable to do anything; or you may get a 169.x.x.x IP address. The school's networking folks can look at the network infrastructure equipment -- the big switches in the wiring closets -- to see if the MAC address is registered on multiple ports.
    The best solution is to replace those bad min-hubs or mini-switches -- they shouldn't hang onto MAC addresses for computer that are no longer connected. But if that's not an option (or just to test the theory), unplug (power off) every hub or switch you have plugged into, and see if you can get online after powering them up again. You would have to power cycle the hub or switch every time you use one.
    Another test is to try to connect somewhere else on campus, on a different subnet. If it also doesn't work on another subnet, the solution described above does not apply. There are other potential culprits, such as the subnet running out of IP addresses, rogue routers installed by other students, and needing to register for the school's network, misconfigured network settings, and of course, defective hardware. You might try starting up from the MacOS Installer disc and running the Network Utility to rule out misconfigured network settings.

  • Question re: MacBook not recognizing hard drive...

    Question: When a MacBook is not recognizing it's hard drive, what are the basic steps one can take to fix?
    Have been reading through the posts the past few hours, and do see information on this, but am wondering/hoping someone can simplify a bit for me? Am not very computer savvy...
    Would so greatly appreciate any help

    Boot from your Install DVD and go to Disk Utility and find the hard drive from there and repair it.
    If DU can't find the HD then it's probably defective.

  • MacBook not recognizing Keyboard and trackpad

    Our white MacBook has suddenly devepoped the problem of not recognizing any of the internal input devices. A dialog box appears seeking keyboard and trackpad connections over bluetooth on the desktop after start up. I was able to work around this with a USB keyboard and mouse. What might be the problem?

    sorry you say your built in trackpad.  and your built in keyboard.  reboot.  reset your pram.  maybe your smc
    see if that helps

  • Macbook not recognizing USB ports from external monitor.

    I have a Dell Monitor hooked up to the VGA port and have several items (printer, external hard drive) hooked into the ports on the Dell monitor. My Macbook is not recognizing the things that are plugged into the monitor.
    These ports were working at one point but when I moved my setup and had to plug everything back in I can't get the USB ports on the monitor to work.
    Along the same lines...I tried connecting the monitor to my laptop with a USB cable (female port from back of monitor to male port on Macbook) along with the VGA port. This did not fix the problem but I just wanted to know (had my laptop been recognizing the ports) if this was even necessary.
    Since this setup has worked before I'm thinking it is something small that I am missing but any help would be appreciated.
    Macbook Pro   Mac OS X (10.4.7)  

    Hi,
    Please go to the following site and click Scan now:
       http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?os=228&lc=en&cc=us&dlc=en&sw_lang=&product=31841...
    Hope this helps.
    BH
    **Click the KUDOS thumb up on the left to say 'Thanks'**
    Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

  • MacBook not recognizing external hard drive

    After months with no problem, my MacBook Pro is not recognizing my external hard drive (USB3.0) as my time machine backup.  Yet, when I enter time machine, the backups appear.

    Thank u! it worked
    Cheers!

  • MacBook not recognizing HardDrive after freezing and crashing

    This is the second time I had this problem since I bought my macbook (from the online apple store) at the start of August.
    What happens the first time is that I leave to go do something and leave an application (such as Itunes) open on my computer long enough for the computer itself to go to sleep. Generally, this isn't a problem for me as I go for days without shutting down my computer (most recently for finals). But for these two times, (the first being in september), I come back to my computer to be greeted with a totally frozen machine. Though it will light up so I can see the screen and the mouse moves, I cannot close anything and commands will not work. after 15-20 minutes of waiting for the computer to recognize the quit command, I manually shut down the computer and let it sit for an hour or so.
    Upon booting the machine back up, I am greeted with a blank gray screen that seems to go unchanged for a long time. Finally, I get a single folder icon with a question mark that flashes, stating that it cannot recognize the OS.
    Now, the first time this happened, I was still under the phone service from the new purchase so I called applecare and spent close to an hour an a half with the rep on the other line and we tried dozens of ways to try and access the hard drive, none of them worked. He thought it might be soemthing with the hard drive connection itself so I sent the computer off to a repair store and recieved it back within a week, and I haven't had any complaints since. This was in september.
    Tonight, I come back and my computer is frozen. I try everything I can to quit the programs open (itunes, ichat, word) and nothing works, so I force quit and wait an hour. I get the folder icon/question mark again, so i shut down the computer and wait two more hours. This time it boots up long enough for me to check my email and try working on a project in word. I go to open ichat and it freezes again. Now it is only presenting me with the folder/question icon.
    The only thing that is similar between these two cases is that they both occured when I need my files the most for projects, and I would hope fate isn't against me. I tried to find some way to request a direct mail/pick up again on this site but I'm having trouble navigating it.
    Has anyone else had this issue? The last time this happened, the invoice seemed to indicate that they replaced the cables and possibly some part of the motherboard and/or cpu (I had a hard time decifering the shorthand). I do not have my osX disc with me because I'm on Christmas Break and I left all my CD's at school. Does anyone have any suggestions with what to do? I am going to back up everything if it gives me a chance to, but I don't think whatever is wrong with it was fixed last time and I'm starting to think I have a faulty computer.
    The only programs that start on startup (this site this may be a cause) is my alarm clock, Auroura, (sp) which takes little CPU space and even a smaller amount of ram.
    Suggestions? Other stories?

    Thanks for the help, but nothing is working. Even when I had the disc and was online with Apple Support, nothing shows up. I cannot start the computer in safe mode, or in single user mode, or anything because it says that I don't have a hard drive so it recognizes nothing. When I had the disc and tried to use disk utility, it only gave the option of repairing the DVD itself, and said that there were no other drives present on the system.
    I know of one other person who had this problem at my school, but his cleared up within the day. Mine doesn't seem to be doing that.
    As far as my computer is concerned, it has ram, but no OS, and more importantly, nothing from which to get information off of.
    This is my first Mac purchase, and the first time anyone I know has chosen a mac (with the exception of college friends). I love the operating system, and from what I've read on here ,the newest generation of Macbooks are much more stable, but I'm starting to get really frustrated with my computer dieing like it is. Hopefully I'll be able to run down to an apple store (the nearest is a little more than an hour away) and get it fixed again, but I don't want this to be a reoccuring problem, which it seems to be. Hopefully, if it is a hardware issue, they'll upgrade my computer accordingly. I can't afford to do so myself at the moment.

  • Slow net speed on MacBooks, not on Mini or iPad

    Roadrunner ISP, Airport Extreme wireless router. If I run the TW speed test app on either my 2010 17" MacBook Pro or my wife's white-body MacBook (both running Mavericks) I see a download speed of only 3Mbps instead of the 20 my plan provides. If I run the speed test on my Mac Mini Server (also running Mavericks) or my iPad Air, both on the same network, I get the full 20 down. 
    The behavior on both laptops is the speed needle jumps up to the full 20 for a second or two, then ramps down until it settles at around 3 for the rest of the test, and the final average is around 3.
    I've gone round and round with TW, replaced the cable modem, and also verified that this problem happens on the laptops if I Ethernet them directly into the model and bypass the Airport, so it's not a router/wi fi issue.
    So, the question seems to be what is unique about the two laptops that causes them to be throttling the download speeds, while the desktop and the iPad are not?
    Thanks in advance.

    Problem resolved. The test method I was using was the URL given to me by Time Warner for testing Roadrunner speeds. I just re-ran the tests using the service at speedtest dot net. That one shows I actually am getting proper download speeds on all my Macs. Clearly TW's service is flawed.

  • My built-in webcam is not working. Macbook not recognizing it?

    Ive had no problems with my built in webcam before but for some reason today and yesterday my Built in Macbook camera is not showing.. No Green light and no camera? Skype, photobooth, Imovie, online sites, Ichat, Nothing Works with my camera, it says No camera Connected? Please help. Macbook 10.5.8  Version.

    HI,
    Go to the Apple icon menu and hold the ALT key down whilst doing so.
    Select System Profiler (it changes when and if you hold the ALT key down)
    IN the System Profiler open up the Hardware > USB option
    Does this list the camera ?
    If not then do a SMC/PMU reset (the model Specific bits are at the bottom)
    If it does appear then Log in a different Mac User Account (You may need to create one in System Preferences > Accounts)
    Do those same Apps "see" the camera now ?
    8:41 PM      Saturday; December 31, 2011
    Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
      iMac 2.5Ghz 5i 2011 (Lion 10.7.2)
     G4/1GhzDual MDD (Leopard 10.5.8)
     MacBookPro 2Gb (Snow Leopard 10.6.8)
     Mac OS X (10.6.8),
    "Limit the Logs to the Bits above Binary Images."  No, Seriously

  • MacBook Pro 1,1. OS X 10.6.8 Trying to connect an Edirol FA-101 via FireWire, Macbook not recognizing device.

    Hello,
    I'm trying to connect an Edirol FA-101 to my MacBook Pro. I'm running Snow Leopard 10.6.8. Other fireWire devices and drives work on the port, but the Edirol is not showing up in Audio MIDI setup or anywhere. I've tried both DC power and Bus power on the Edirol. Did the SMC reset, flashed the PRAM. Reset Permissions in safe mode. Still nothing. The lights on the device show that it is on and connected, but in system profiler I get "Warning: Unable to list firewire devices."
    Any ideas?
    Josh

    Hate to say it, but it sounds like the device has gone kaputt.

  • WD MyBook worked on MacBook, not recognized on iBook

    I had to send my Macbook (with latest Tiger) in for repairs, and backed up everything to my western digital mybook essential. I am using my fiancee's iBook (with panther) until then, but it says "you are using a disk with volumes that Mac OS X cannot read...." and gives me options to "initialize", "eject" or "ignore."
    I now realize that hitting "initialize" may have been very stupid. My question is "how stupid?" When I hit initialize, thinking it meant "mount the stupid disk", it took me to disk utility but none of the options to anything were available other than to eject. Did I destroy my data?
    Please help!

    Yes erasing does take time. Initializing does not erase all of data but it does clear the directory structure. You will need to use a recovery application like File Salvage or Data Rescue to get access to your information.

  • Why is my macbook not recognizing iPhone 4s?

    Hello. For some reason my Macbook has stopped recognizing my iPhone 4s. It doesn't appear in Finder when connected, nor does it appear in iTunes or iPhoto. This happened at pretty much the same time as I updated to the latest iTunes, so I'm thinking that may be the culprit somehow.
    I have Macbook 4.1 running Snow Leopard. Software version 10.6.8.
    I've tried using my connector cable with my iPhone on my flatmates Macbook Pro and everything was fine on that. I've tried my external HD in both USB ports, so they seem fine. I've tried uninstalling and reinstalling iTunes  and that hasn't helped. I've tried resetting the phone whilst it's been plugged in (I haven't tried a factory reset - but I want to avoid this, especially as the phone is recognised on my flatmates Mac).
    I've already tried everything on this: http://support.apple.com/kb/ts1591 and this: http://support.apple.com/kb/ht1747
    Any more suggestions?

    Ok, I've also tried something else now too: My flatmate let me check her iPod with my Macbook (and my cable) and it was recognized straight away. This just keeps getting stranger....

  • Macbook not recognized by iphone5

    I am trying to pair my new macbook pro with my iphone 5 and for some reason the iphone says the macbook is not supported by the iphone?? anyone else having this problem??

    pdmedic wrote:
    I am trying to pair my new macbook pro with my iphone 5 and for some reason the iphone says the macbook is not supported by the iphone??...
    See the answer here...
    https://discussions.apple.com/message/17664595#17664595
    More Info Here  >  Supported Bluetooth Profiles
    http://support.apple.com/kb/HT3647
    And Here  >  iPhone User Guide (For iOS 6 Software)

  • Macbook not recognizing HDD

    I was typing and my macbook suddenly shut off and when I restarted there was a flashing folder with a question mark. I tried to restore the folder with the restore disk but my hard drive wasn't present in the disk utility. I even tried to choose re installation but again, no hard drive showing at all. Any tips on how I can fix this?

    do you here a weird clicking noise? wether you do or don't it could mean hard drive failure
    now if you do here a clicking noise it could mean mechanical failure and in that case you better have had your data backed up because there is a small chance at recovery then

  • Screen goes black when hooking up to TV via mini-DVI to video adapter...

    Hello,
    Ever since I upgraded my PB12" to 10.5.x (now running 10.5.5, but this issue has been there since upgrading to 10.5.1), when I hook up the mini-DVI to video adapter (different adapter than for hooking up to an external display as the mini-DVI to video adapter has composite and sVideo out) to my TV, the PB screen goes black. It's set up to mirror the PB on the TV, and the PB continues to run, picture works on the TV, but I loose picture on the PB. Only way to get it back is to reboot the PB (with the mini-DVI to video adapter unplugged). So, basically, if I try and use the mini-DVI to video adapter, I loose picture on the PB. This never happened under 10.4.x — only since upgrading to 10.5.x.
    Anyone have this issue? Know of a fix?
    Thanks,
    Kristin.

    If you connect the MacBook using a Mini DisplayPort to HDMI adapter you will probably need to use external speakers or a 3.5mm stereo headphone jack to RCA sound plugs connected to a stereo sound system if your TV doesn't have separate RCA input plugs or a 3.5mm stereo input plug for audio with the HDMI plug. The Mini DisplayPort to HDMI doesn't carry audio unless you have the Mid 2010 model 7,1 and there're no audio plugs on most TVs to work with HDMI since it's expecting audio with the HDMI.
    If you have the Late 2008 model 5,1 Aluminum Unibody or Late 2009 model 6,1 White Unibody with the Mini DisplayPort rather than the Mini-DVI there is an adapter that can combine video and audio to HDMI.
    http://www.monoprice.com/products/product.asp?c_id=104&cp_id=10428&cs_id=1042802 &p_id=5969&seq=1&format=2

Maybe you are looking for