Mac mini, no video signal problem

Discussion in 'Mac mini' started by bier-meister, Mar 16, 2009.

  1. bier-meister macrumors regular

    Joined:
    Nov 25, 2008
    Location:
    Hamburg, Germany
    #1
    I received my new mac mini last week and installed a few things on it over the weekend so that I can run it as an HTPC. Works great but I am having one issue and that is with the video signal. I have the mac mini connected to my Samsung 720p LCD TV with VGA using Apple's miniport to vga adaptor.

    When the TV is already turned on and I start the mini or bring the mini out of sleep then everything works OK. However if the TV is off and I start the mini or bring it out of sleep and then turn on the TV, I get a "no video signal" message.

    I've tried un-plugging the vga cable and plugging it in again, doesn't work. I've remote desktoped into the mini and I can see it is on, I checked the screen resolution and it is ok, I tried resettting the resolution by changing it to a random resolution and changing it back again but no luck. The only solution is to restart the mini.

    Anyone come across this problem and know of a fix? (Apart from turning on the TV first :D)

    Thanks!
     
  2. Richard8655 macrumors 6502

    Joined:
    Mar 11, 2009
    Location:
    Chicago suburbs
    #2
    My impression is that the monitor always needs to be on before starting the machine (Mac Mini), so it can determine the monitor signal requirements at startup.
     
  3. bier-meister thread starter macrumors regular

    Joined:
    Nov 25, 2008
    Location:
    Hamburg, Germany
    #3
    Maybe this is an OSX issue. Every morning I come to work I turn on my windows PC, get a coffee and then turn on the monitor, never a problem. I had before the mini a windows media center box under the TV and didn't have this problem.

    I saw on another forum a similar issue about the mini losing the EDID, which sounds similar to what you are saying. The only solution I've come across so far is purchasing a device similar to this. That to me is too expensive of a solution, almost a quarter of the mini's price :eek:
     
  4. wrldwzrd89 macrumors G5

    wrldwzrd89

    Joined:
    Jun 6, 2003
    Location:
    Solon, OH
    #4
    This issue is actually caused by buggy firmware in the Mini DisplayPort to VGA adapter for the Mac Mini. Apple released a firmware update today to address this. Check your Software Update.
     

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