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I was able to clone my working 10.6.7 from a 2.1 Macbook to the 2.4 in FW disk mode. The 2.4 showed up as a boot disk in System Prefs.
 
I shut everything down and replaced the drive inwent back to the 2.4 Macbook. Booted, but got 3 flashing lights, so bad RAM. Replaced the RAM, tried to boot, the Apple logo came up, the boot process started, the spinning cog wheel went on for about 2 minutes, then the screen suddenly went black and the Macbook went into Sleep.
I shut everything down and replaced the drive inwent back to the 2.4 Macbook. Booted, but got 3 flashing lights, so bad RAM. Replaced the RAM, tried to boot, the Apple logo came up, the boot process started, the spinning cog wheel went on for about 2 minutes, then the screen suddenly went black and the Macbook went into Sleep.
 
I replaced the hard drive and tried to boot from a Retail Snow Leopard DVD, it booted fine, then the screen went black at about the same time as before. I could still hear the DVD spinning up and I'm pretty sure it got to the Install window. With the screen still black, I waited for the DVD to spin a bit more, then I hit Enter and it sounded like it was ready to install.
 
At that point, I connected an external monitor, but it didn't get a signal from the Macbook.
 
I rebooted and then the external display received a video signal and I got to the Snow Leopard install screen. All this time the Macbook display has remained BLACK.
 
I went to Disk Utility and reformatted the new drive, then started the installation, which is now proceeding.
 
Any thoughts?
 
Why would the Macbook display work fine at boot (Apple logo, etc.), but then cut out after about 2-3 minutes?
 
Why would the Macbook screen remain black while I got a video signal on an external monitor?
 
Does this sound heat-related in some way? I should note that while booting from the DVD and now installing Snow Leopard, the fans are going pretty fast.
 
I just want to point out that this was an absolutely pristine, impeccable Macbook until these recent problems. It is in fantastic condition, none of the usual chips out of the top case and trackpad area. After the latest fresh install of 10.6.0 it was perfect upon reboot. Fast, perfect Airport and Bluetooth, FW and USB worked perfectly with a FW drive and USB mouse I hooked up.
 
Then all the problems started AFTER THE FIRMWARE UPDATE.
 
I don't know how much stock can be put in the firmware update being the cause of the problems, but the sequence here would bear that out. These are also somewhat unusual problems, at least in my experience.
 
One of the odd things was when I first went to wake the Macbook after the firmware update: the "fuzzy" screen and the segmented progress bars. And it was just before the segmented bars completed progress from left to right that the display cut out and went black. And from that time on, I've had the aforementioned problems.
 
Any ideas or links to similar problems would be greatly appreciated, e.g. possibly firmware related, or where the Macbook screen works but goes black after a couple minutes. And now that I've been able to connect to an external monitor, it would seem that the video signal is okay too.
 
This is really weird. And it couldn't have come at a worse time. I've kept the Macbook perfect and pristine and have decided to sell it, due to economic constraints, i.e., tough times. I've received a good offer for it and was about to conclude, but now these problems have cropped up. Really bad timing.
 
Anyway, if anyone's got a good suggestion or two, I would truly be grateful.

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原帖由: Simple Simon ,

文本:

Updates:

I was able to clone my working 10.6.7 from a 2.1 Macbook to the 2.4 in FW disk mode. The 2.4 showed up as a boot disk in System Prefs.

I shut everything down and replaced the drive in the 2.4 Macbook. Booted, but got 3 flashing lights, so bad RAM. Replaced the RAM, tried to boot, the Apple logo came up, the boot process started, the spinning cog wheel went on for about 2 minutes, then the screen suddenly went black and the Macbook went into Sleep.

I replaced the hard drive and tried to boot from a Retail Snow Leopard DVD, it booted fine, then the screen went black at about the same time as before. I could still hear the DVD spinning up and I'm pretty sure it got to the Install window. With the screen still black, I waited for the DVD to spin a bit more, then I hit Enter and it sounded like it was ready to install.

At that point, I connected an external monitor, but it didn't get a signal from the Macbook.

I rebooted and then the external display received a video signal and I got to the Snow Leopard install screen. All this time the Macbook display has remained BLACK.

I went to Disk Utility and reformatted the new drive, then started the installation, which is now proceeding.

Any thoughts?

Why would the Macbook display work fine at boot (Apple logo, etc.), but then cut out after about 2-3 minutes?

Why would the Macbook screen remain black while I got a video signal on an external monitor?

Does this sound heat-related in some way? I should note that while booting from the DVD and now installing Snow Leopard, the fans are going pretty fast.

I just want to point out that this was an absolutely pristine, impeccable Macbook until these recent problems. It is in fantastic condition, none of the usual chips out of the top case and trackpad area. After the latest fresh install of 10.6.0 it was perfect upon reboot. Fast, perfect Airport and Bluetooth, FW and USB worked perfectly with a FW drive and USB mouse I hooked up.

Then all the problems started AFTER THE FIRMWARE UPDATE.

I don't know how much stock can be put in the firmware update being the cause of the problems, but the sequence here would bear that out. These are also somewhat unusual problems, at least in my experience.

One of the odd things was when I first went to wake the Macbook after the firmware update: the "fuzzy" screen and the segmented progress bars. And it was just before the segmented bars completed progress from left to right that the display cut out and went black. And from that time on, I've had the aforementioned problems.

Any ideas or links to similar problems would be greatly appreciated, e.g. possibly firmware related, or where the Macbook screen works but goes black after a couple minutes. And now that I've been able to connect to an external monitor, it would seem that the video signal is okay too.

This is really weird. And it couldn't have come at a worse time. I've kept the Macbook perfect and pristine and have decided to sell it, due to economic constraints, i.e., tough times. I've received a good offer for it and was about to conclude, but now these problems have cropped up. Really bad timing.

Anyway, if anyone's got a good suggestion or two, I would truly be grateful.

状态:

open