I can enable high resolutions on new iBooks

in Current Mac Hardware edited January 2014
I've only tested this in OS 9:

1) Plug in an external CRT into the mini VGA port

2) Insert an external keyboard or mouse

3) Put the iBook to sleep by closing the lid

4) Release the lid latch but do not lift the screen

5) Wake the iBook by pressing a button on the external mouse or keyboard

6) Once the harddrive spins up and the external screen starts to warm up, lift the iBook screen all the way

This should cause your computer to believe the the external VGA port is the primary monitor port. The LCD will be completely disabled while you're in this mode. This lengthens the display's lifetime.

If you time this procedure correctly, you'll be able to access resolutions up to 1920x1440, or some such. I myself only run at 1600x1200 so I can have 75 Hz on my paltry 19" monitor.

The same procedure using the TV adapter lets you access the lower resolution of 512x384, which is within NTSC without filtering and produces a clearer, more useable output.

It may take a little while for you to get the right timing on the procedure. Also, you may find yourself in a position where the computer won't stay asleep, but rebooting the computer fixes this and having the very high external resolutions is well worth the effort.

[ 07-25-2002: Message edited by: AllenChristopher ]</p>


  • Reply 1 of 6
    Nice. That would be enough to make me get an iBook. That is, if it works in X....
  • Reply 2 of 6
    Yeah, I had to wipe X for other reasons and I don't want to reinstall it without waiting for Jaguar and repartitioning. Undoubtedly someone can tell us sooner...
  • Reply 3 of 6
    emaneman Posts: 7,204member
    Too bad my 15" LCD doesn't go higher than 1024x768 because if it did I'd give it a try.
  • Reply 4 of 6
    cyko95cyko95 Posts: 391member
    YOU ARE THE MAN. It worked for me in OS 9, but not in OS X. But that means that there is certainy hope for X. Thanks a mil.

    BTW, I had my CRT CTX 17" up to 1280x1024 (I think thats it, 1280xWhatever) <img src="graemlins/surprised.gif" border="0" alt="[Surprised]" /> <img src="graemlins/surprised.gif" border="0" alt="[Surprised]" />
  • Reply 5 of 6
    jet powersjet powers Posts: 288member
    bump for iBook heroism.

    I wish someone would write a proggie that would take care of this once and for all.

    We've got people spanning iBooks, and now expanded res.....

    Go iBookers!

    ting5, who has a 19" CRT just begging to be used
  • Reply 6 of 6
    stewstew Posts: 6member
    How I wish something like this was possible with the previous iBook generations...the RageM3 chips are crippled in software too. There should be way of hacking these too, either by modifiying OF or by using a modified Darwin IOKit layer. Unfortunately, the source code of the ATI drivers is not in the Darwin CVS.

    Anyways, I'll be adding this thread to my <a href="http://www.keindesign.de/stefan/ibook.html"; target="_blank">site</a> with iBook hacks, and will continue my quest on taking advantage of all the capabilities my RageM3 has
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