I am experiencing the same problem on my iBook G4 14" (1.42 GHz).
I tried accessing Open Firmware but got a white screen. I powered down, rebooted, let it power up and waited for a few minutes. I was able to hear the beeps that result from adjusting the volume with a corresponding level of loudness. I then pressed the power button and the enter key, and the iBook shut down.
I rebooted with external video ready to go.
External video works!
The primary image went directly to the external video monitor. I was not able to set up an extension to the desktop. Any changes I made to either video failed to get an image on the LCD.
I'm thinking the video cable's gone bad (or perhaps needs reseating) because a good cable would at least signal the iBook to setup extending the desktop to the external monitor. I will confirm once I get a replacement video cable and/or LCD.
Thanks for reading!
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== Update ==
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I just replaced the LCD with another one. I didn't test whether the replacement was working.
I am experiencing the same problem on my iBook G4 14" (1.42 GHz).
I tried accessing Open Firmware but got a white screen. I powered down, rebooted, let it power up and waited for a few minutes. I was able to hear the beeps that result from adjusting the volume with a corresponding level of loudness. I then pressed the power button and the enter key, and the iBook shut down.
I rebooted with external video ready to go.
External video works!
The primary image went directly to the external video monitor. I was not able to set up an extension to the desktop. Any changes I made to either video failed to get an image on the LCD.
I'm thinking the video cable's gone bad (or perhaps needs reseating) because a good cable would at least signal the iBook to setup extending the desktop to the external monitor. I will confirm once I get a replacement video cable and/or LCD.
Thanks for reading!