Missing Resolution External Monitor

Discussion in 'OS X Mountain Lion (10.8)' started by monkeymajik, Oct 1, 2012.

  1. monkeymajik macrumors newbie


    Jul 19, 2010
    Hello guys, i need some help. I already searched for this for the whole weekend, but still don't have the clue.

    I have 19" external monitor (LG Flatron W1953SE), and i connect it to Mid-2009 MacbookPro by Mini Display port to VGA.

    Before it was running fine, mountain lion detect the monitor native res (1360x768).

    After a few days, suddenly, mountain lion couldn't detect the native res. And when i click the detect display, mountain lion will suggest to 800x600 res.

    I tried to add custom resolution the the mountain lion, but couldn't figure it out yet.
    I already tried reseting NVRAM, didn't work.

    I think the problem is because, mountain lion suddenly can't detect the correct driver for my LG monitor. It shown "DISPLAY" on system profiler. Before, if i wasn't mistake, it shown the type of the monitor product ( W1953SE). I don't think there are any drivers for monitors.

    To use SwitchResX is my last option.

    Please, if anyone have the solution for this.

    Many big thanks !

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