New MBP Santa Rosa: Screen locks up when connecting extern monitor

Discussion in 'MacBook Pro' started by tubbtubb, Jul 10, 2007.

  1. tubbtubb macrumors newbie

    Jun 16, 2007
    I bought one of the 2.4 GHz MacBook Pros (Santa Rosa chipset) recently.
    Unfortunately, when I wake it up from sleep (by opening the lid) and plug in
    an external monitor (w/ VGA adapter) the screen locks up immediately,
    and I have to force power down.

    Has anyone else seen this?
    Is there a way to get it out of this state other than rebooting?
    If I can telnet into the macbook when its in this state, does anyone know
    what (if any) processes I can restart to fix this?
    (like in linux, you can restart the X11 process)

    It seems to lock up around 1 out of every 3 times I try plugging it in.

    I've had no trouble with my old PowerBook G4 and the same monitor.

    I've tried all the usual stuff, resetting the PMU, PRAM, etc.

    Connecting the monitor when running Windows XP in Boot Camp seems to work fine.

    I have to say I'm not entirely happy with my latest purchase from Apple.
    I've got this monitor lock up thing, and I've also had the kernel panics related to Airport.
  2. Multimedia macrumors 603


    Jul 27, 2001
    Santa Cruz CA, Silicon Beach
    Don't Connect An External Monitor That Is ON

    NEVER connect an external monitor that is ON. It must be OFF for sure before you connect it. It is also preferable that the MBP be OFF when connecting it. Then turn on the monitor before turning on the MBP. Since I don't have a Santa Rosa MBP, I may be all wrong. But this is what comes to mind at first blush.

    Would you mind telling us if your new MBP video card supports rotation in the Displays Preference Pane? Is yours 15" or 17"?
  3. Trepex macrumors 6502a


    Apr 5, 2007
    Ottawa, Canada
    Yeah technically the monitor should be off when connected, but the MBP does not need to be powered down.
  4. tubbtubb thread starter macrumors newbie

    Jun 16, 2007
    It is a 15", and it does appear to support rotation.
    Regarding the necessity of having the monitor power off when connecting: the IOs are built to be able to handle this. I've "hot swapped" VGA monitor cables for years on lots of different hardware without problems. Yeah, there are warnings, but it is extremely unlikely to damage anything from static since most newer chips have ESD protection built in, and the DVI and VGA connectors are shielded.
    (I used to be a IT support guy, now I'm an electrical engineer)
    Anyway, it still locks up occasionally whether the monitor is on or off at the time of the connection.
    Also, my PowerBook G4 never had this problem, and I don't have problems with the new MBP when running in Win XP, which would point to a graphics driver problem.
    Same problem when running OSX 10.4.9, 10.4.10, with and without that OpenGL driver update in the middle there, etc.
  5. Gymnut macrumors 68000


    Apr 18, 2003

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