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Mini DisplayPort to VGA adapter not working under Vista (Boot Camp).

66422 Views 144 Replies Latest reply: Mar 10, 2010 6:34 AM by FredMastro RSS
  • vistabook Level 1 Level 1 (0 points)

    hopefully the guys in Italy will be able to help.

    The thing that anoys me most is that I haven't heard of that problem in the first place. It is really becoming a serious problem for me at work.

    Anyway, keep me posted on any solutions.

  • innorevo Calculating status...

    I am intending to purchase a Macbook Pro.
    Do you have this problem on XP?
    And what do you mean SHORT CABLE? is it about 2 meters?

    Macbook Pro, Windows Vista
  • vistabook Level 1 Level 1 (0 points)
    Hey guys,

    I just wanted to share my not-so-great-but-still-its-a-solution-solution to this problem. I switched to parallels and I am now using the bootcamp partition via parallels also.

    Of course you will have to figure out how to activate Office on both parallels and bootcamp. I called the MS Support, owning legal licences of all programs, and they did help me!

    Next thing is the performance issue, especially if you (like I do) have to work with massive ppt files including a lot of videos. If you disable 3d support in parallels, be sure to give vista and mac osx enough RAM (I got 4gb in my MB so I devided it in two 2 gb half). Also be sure to have the latest parallels and parallels tools built (new one came yesterday or today).

    Now It seems to work fine for me. No problems with .wmv and performance is almost as good as in bootcamp (except of course 3d, which I don't need)

    Thats the solution I went for after spending a whole lot of time searching the web, considering buying a usb video card, trashing my MB, hating vista, hating Apple.

    If anyone has a solution to the MiniDisplayport problem for bootcamp vista, share the knowledge!


    Message was edited by: vistabook

    Message was edited by: vistabook
  • Jorge Rui Machado Calculating status...
    I have this issue too. But only on Vista 64 and Windows7 64bits
    Windows XP SP3 seems to work fine.
    Then it's a driver issue
    Macbook Pro Late 2008, Mac OS X (10.5.6), 4Gb RAM - Hard Drive 320Gb
  • Jorge Rui Machado Level 1 Level 1 (0 points)
    yes I'm Sure. The exacte same projector, and always work

    Message was edited by: Jorge Rui Machado
    Macbook Pro Late 2008, Mac OS X (10.5.7), 4Gb RAM - Hard Drive 320Gb
  • tlonian Level 1 Level 1 (0 points)
    I wonder if we might be able to do a little more troubleshooting here.

    For example, I have noticed that when I'm hooked directly to a projector with a VGA cable, Windows/NVidia drivers recognizes the projector (i.e., the name shows up in the monitor list), and I'm able to get all supported resolutions on both my screen and the projector.

    On the other hand, if I have the computer hooked up to a projector via a switch, the projector is not recognized. The second monitor is listed as something like a generic display device, and the computer will not output a signal to the projector higher than 640x480.

    Is anyone else noticing this behavior in this way? Are people having trouble outputing to a projector connected directly to the computer (e.g., with a very long VGA cable, but still directly connected)? Or is the problem always when there is a switch or some connecting device in between the computer and the projector? When you have trouble getting the higher resolution, is the projector recognized or do you have a generic device listed?

    Clearly it's a driver issue all around, but maybe there is a way of forcing a particular display device? I know there is a community of folks somewhere that provides alternative config files for NVidia drivers. Has anyone tried these?
    Apple, Windows Vista
  • tlonian Level 1 Level 1 (0 points)
    I had luck again this afternoon directly hooking up to a different projector. For me, it definitely seems like the switch is not being recognized by Windows/NVidia or some combination.
    Dell, Windows Vista
  • Jorge Rui Machado Level 1 Level 1 (0 points)
    I can confirm that it works with XP SP2 - 32bits
    VGA drivers - bootcamp 2.1 that came with the unibody MBP
    Macbook Pro Late 2008, Mac OS X (10.5.7), 4Gb RAM - Hard Drive 320Gb
  • unidesk_ch Calculating status...

    Has anyone been able to get any further on this particular issue? I can verify it is happening on both a unibody 15" and 17" MacBook Pro. Like previous posts if I connect directly to a projector (Hitachi CP-A100 in this case) everything works fine but when I use our Gefen Extenders to a 4x4 video switch I cannot get a resolution above 640x480 within Vista to save my life (naturally the Mac OS works just fine). Tried the latest nvidia drivers, verified the mini display port to VGA adapter firmware was updated and still no luck.

    I haven't tried an XP system mostly because all of our users here are Vista or Mac OS X based and older MacBook Pro's work fine. I would like to contact Apple about this but not really sure what if anything they will be able to do and I feel that I will spend an hour or more describing the issue.

    I would appreciate any thoughts or help.

    MacBook Pro (15" and 17"), Windows Vista
  • Heofz Calculating status...
    Add me to the list, just tried to get it working on my university projector (I have my thesis presentation in a week) and I also can only get 640x480, screen resolution selector greyed out. Really lame because I went and bought a Mini-DP-to-VGA adaptor specifically for this reason. And it cost me £20 no less!

    I was using nVidia 176.xx drivers before, and it was very sketchy even trying to get a picture. Just updated to latest and now I can now pick up the projector but still no higher than 640x480.

    Strange thing however: I connected it to my 24" dell monitor and it worked perfectly. What gives???

    I'm home now and won't be back in uni for a while, but can anybody try going into your device manager and manually updating your projector "Generic PnP Monitor" driver to: (Standard Monitor types) -> "Super VGA 1024x768" or above, and see if that fixes your 640x480 issue?

    You will have to untick the "show compatible hardware" box. Maybe it'll work then?
    Macbook Pro 15" Unibody, Other OS, Windows 7 x64 RC - 4GB ram, 2.4Ghz
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