My Daughters iBook G4

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Joined: Apr 16 2008
Posts: 3

Hi everyone,
My daughter has landed me with her iBook G4 as it has a problem. The screen suddenly went black or rather grey, complete lose of display!
I thought she had dropped it or spilt something on it , she swears blind she has not! I managed by using an external monitor and the adaptor to get it running. Weird thing is, it only works with the external monitor connected. By this I mean both the iBook screen and the external monitor work, but when I disconnect the external monitor I loose both screens! This to me suggests the default screen is set to be the external monitor, although I am told this cannot be the case! I have reset the PRAM with no effect. Not being very familiar with MAC I am now lost . Anyone know what the problem could be and best of all how to get the iBook screen to work without using a monitor??

Thanks Danny

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cwsmith's picture
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Joined: Oct 13 2005
Posts: 699
Have you tried ...

Reset the NVRAM. Power up the computer. Immediately after the startup chime, hold down Apple-Option-O-F until the screen lights up grey (or for about 30 seconds if the screen doesn't come on). Type the following two lines *exactly* as you see them here, and press Return after each line:

reset-nvram
reset-all

The machine should now boot normally. Did this fix the problem? If not, try this:

Force the machine to rescan its system bus. Open the keyboard. Remove the Airport (or Airport Extreme) card if present. Use a small Phillips screwdriver to remove the RAM shield. If the exposed RAM slot is full, remove the card. If the RAM slot is empty, find a proper card to put in temporarily. Reassemble the computer and start up. The machine should rescan the system bus and *hopefully* reset the video preferences.

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Dozens of Macs; a handful of PCs; Apple ][e, ][c and ][gs; a few iPods; lots of parts
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Offline
Joined: Apr 16 2008
Posts: 3
iBook g4

Thanks cwsmith,

I'll try that this evening.

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Joined: Apr 16 2008
Posts: 3
iBook G4

Hi cwsmith,

Your a hero in my house buddy, it worked by reseting the NVRAM, I really thought it was going to be a case of throwing it in the bin.
Thankyou very much for your time.

Danny

cwsmith's picture
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Joined: Oct 13 2005
Posts: 699
That's awesome!

Glad it worked for you. Stick around here, kid, and your Macs will go places!

__________________

Dozens of Macs; a handful of PCs; Apple ][e, ][c and ][gs; a few iPods; lots of parts
17 guitars, 2 baritone guitars, alto guitar, 6 bass guitars, bajo sexto, 3 ukuleles, mandolin, banjo, sitar
3/4 scale upright bass, 4pc drum kit, congas, travel congas, bongos, cajon, cabasa, 12 harmonicas
http://www.cwsmith.fmhttp://www.facebook.com/cwsmith2620