iBook external screen resolution (with hack)

Discussion in 'General Mac Discussion' started by ShaggyLR, Jun 22, 2004.

  1. macrumors member

    Joined:
    Jan 12, 2004
    Location:
    Montreal
    #1
    I am looking into getting a non-Apple CRT screen to hook up to my 12" iBook. Once I install the "mirroring override Hack", while I be able to get high resolutions with the 32meg Video card? And will it really slow things down as it is used to maxing out at 1024x768?

    Also, does this hack end my warranty on the iBook? Even though it's sofware and not hardware being added?

    Thanks in advance.
     
  2. macrumors regular

    Joined:
    Apr 17, 2003
    #2
    The maximum resolution will be 1024x768 on the external monitor, and the video memory will be split evenly between your ibook and external screens (ie 16MB each)

    Depending on the number of windows you have open, Exposé can start to get choppy.

    The hack will void your warranty :(
     
  3. thread starter macrumors member

    Joined:
    Jan 12, 2004
    Location:
    Montreal
    #3
    If I were to buy a 17" screen, even with the Hack installed I would still be limited to 1024x768? Then what does the hack do?
     
  4. macrumors 6502a

    Finiksa

    Joined:
    Feb 23, 2003
    Location:
    Australia
    #4
    The hack will NOT void your warranty. It only alters an open-firmware value that can easily be reset by clearing the PRAM.

    I'm not sure what exact resolution you'll be able to get on the external display but you'll definitely be able to go higher than 1024x768.

    The performance should be pretty good, but since Quartz Extreme needs a minimum 16MB per display you'll probably take a bit of a performance hit.
     
  5. macrumors 68000

    Joined:
    May 10, 2004
    Location:
    Nottingham
    #5
    You don't even need to reset PRAM. There is a function in the app to undo all the changes it has made, at any time.
    I had both my G3 and G4 iBooks running at 1600*1200 on an external CRT without problems. Exposé wasn't at all choppy, either, on the G4. Go for it.
     
  6. macrumors member

    Joined:
    Jun 3, 2003
    Location:
    Seattle, Washington
    #6
    I'm running the hack on my iBook G4 800 and a 17" LCD in spanning mode at 1280x1024 (since mirroring only can mirror at 1024x768). Quartz Extreme is noticeably choppier than without dual displays, but I can live with it. Works great!
     
  7. macrumors 6502a

    Finiksa

    Joined:
    Feb 23, 2003
    Location:
    Australia
    #7
    Yeah I know I was just trying to point out that it doesn't make any kind of serious or permanent change, but you're right.
     
  8. macrumors member

    Joined:
    Jun 6, 2004
    Location:
    WV
    #8
    Even at 1024x768 you would then have 2048x768 of work space. It lets you have two displays.
     
  9. macrumors newbie

    Joined:
    Jun 1, 2004
    #9
    I am confused?

    With my 12' powerbook I am able to get the same resolution on my CRT as the laptop screen. I can go higher but, the screen on my CRT will shrink leaving empty space on the screen.

    If I put the powerbook to sleep and connect an external CRT, it wakes up and then I can set the resolution to what ever I wish with only the CRT active.

    What would the hack do differently?
     
  10. macrumors 68000

    Joined:
    May 10, 2004
    Location:
    Nottingham
    #10
    Nothing. It's designed for the iBooks, which have those external modes you use disabled by default.

    (A twelve foot Powerbook? AWESOME!)
     
  11. macrumors 68040

    jxyama

    Joined:
    Apr 3, 2003
    #11
    iBook, by default, only let's you mirror on ext. displays. (i.e. you will see the same image on the ext. display as the iBook display.)

    PB, by default, also allows dual monitors. (i.e. external will be like another desktop.) this hack lets iBook do the dual monitoring.
     
  12. 7on
    macrumors 601

    7on

    Joined:
    Nov 9, 2003
    Location:
    Dress Rosa
    #12
    Adjust the CRT width/height using the controls on the monitor itself if higher resolutions are leaving a black border around the picture. And if you're interested you don't have to sleep a book to get an external display recognized. What I do is in System Preferences>Displays (option + F1 on laptops) I set the "Show displays in menu bar" to checked. Then whenever I hook up another monitor I click the display icon in the menu bar and tell it to "Detect Displays." And i can also set the resolution there.
     

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