Internal display normal during start up but goes black with external monitor showing desktop

My MacBook Pro (2.4 Ghz, Santa Rosa with infamous nVidia card) acts strange. It shows the normal gray screen with Apple logo and animation flawlessly during start up but the internal display goes black without any rendering at all when all is loaded. (shining a light on display show nothing) If an external monitor is connected through the DVI port it will remain black during start up and then show the desktop as the internal display goes black. This happens both while booting to Mountain Lion and Windows XP. I have checked "About my Mac" and only the external display is listed. The same is the case if I use the nVidia Control panel in Windows XP.
My questions: Is this a hardware problem or is it related to software maybe even firmware? What controls the display during start up, graphics card or something else?

I found an article about the same issue. Screen looks exactly the same with bloated apple logo.

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Display goes black with external monitor

I teach and use the Macbook pro used in classroom hooked up to a projector with my dvi/vga connector. After about ten minutes of playing a DVD, the macbook's screen goes black. Movie keeps playing, can get the DVD control on screen BUT the screen on macbook pro never comes back. Plus the cursor, mouse on the projected screen doesn't function. Have to eject DVD, and restart the computer. Very annoying. Had the problem beofre, called apple, reinstalled system software. Was better until yesterday. Any ideas"?
macbook pro Mac OS X (10.4.3)

Mine is doing the same thing with a new 20" Cinema Display. Apple support got me to reset the power manager and zap the PRAM (the old standbys), but no joy. They acknowledged they know about the problem and are working towards a solution, but that was the limit of the conversation.
My tech guys thought it might be when attaching an external keyboard and monitor it might be putting the MBP display into closed lid mode, but using only the MBP's keyboard did not prevent the problem.
For me it tends to happen when I'm taxing the processor with PhotoShop or some other workhorse program. iTunes, too. I use dual display, not mirroring.
Additionally, moving stuff to the black MBP screen will cause a hard crash. Even the spinning beachball of death freezes. So be warned, save those open files before rebooting (Apple's current 'fix').
Coincidentally, my top right fan assembly was clicky/whiny right out of the box. Got that replaced under warranty and still have the display shut off issue. I had mused it might be the fan not working was causing the video processor to overheat and shut off, but no such luck.
Looking forward to a firmware/system update.

Display out, how to boot from OSX CD with external monitor

Folks,
My LCD display is broken and I have been using an external monitor for some time, however I'm ready to sell my laptop and wanted to wipe the drive and reload OSX. When I try to boot from the OSX CD I can see part of a desktop on my external monitor and I can see the curser move but some of the desktop is out of view as if the screen wasn't being scaled properly. Any way to make this work so I can see everything?

Hi, mrhifi. I typed a reply earlier, but I must have hit the "Back" button instead of "Post Reply".
After booting to your CD or DVD, press the F7 key to toggle between mirroring and extended-display mode on the external screen. This may give you a complete, usable desktop on that display. However, I don't know that it will work as it should with your built-in display broken. You'll just have to try it and see.

Temperature goes up with external monitor

Hi,
I'm using a 22" LCD monitor connected to my MacBook via DVI. And it's working pretty well. But the system temperature goes up whenever I plug in the monitor.
When I don't have the monitor connected the idle temperature is about 40-45 degrees celcius. When I connect the monitor it quickly goes up to 60-65 degrees celcius at idle.
This is pretty disturbing since the fan starts spinning loudly very easily.
And it doesn't matter if I turn off the MacBook display either. (by putting it to sleep and waking it up)
Is this really normal? Is this due to the weak graphics chip in the macbook? Doesn't seem reasonable that the difference would be 15-20 degrees.

Well. It bothers me a lot to have to put up with all this fan noise just because I plug in a second monitor. I use it all the time when I'm not on the road, so it's not just every now and then.
I guess I should buy an iMac or Mac mini. But having to sync the data all the time gets a bit tiresome.
Thanks for confirming my issues though! I wonder if the Macbook Pro has the same problems?

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My T400 display works at BIOS startup but goes black was soon as Windows 7 starts to load.. Video out put works and I can see an UN Backlit image on the display. Is there some sort back light controller /driver that may be broken.
Solved!
Go to Solution.

Sorry, should have been more specific
I don't mean you should switch to Linux, just run it out of a live CD or USB Stick so that we can rule out a hardware failure. If it works in Linux ok for a while, it can mean that you have some sort of software problem.
If your T400 screen goes dark with Linux as well, you may be facing a hardware problem, which could be a defective backlight, a defective inverter (or LED card) or a defective cable.
Can you post here the model type of your T400? It's a 7 digit code that can be found in a black and white sticker at the bottom of the laptop.
/L40SX/240/240X/2*340CSE/360PE/365XD/380D/380E/380XD/380Z/390/560E/560X/2*570/2*600/600E/750Cs/755C/760CD/760EL/760XD/770E/A20p/A22p
A31/i1600/G40/R50p/R61i/S30/SL510/2*T22/4*T4x/11*T6x/6*T4x0x/6*T5x0/3*W5x0/W700/3*X2x/4*X3x/3*X4x/5*X6x/3*X6xT/10*X2xx/2*X200T/4*X30x/Z60m/3*Z61x
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An internal error occurred during: "starting server -weblogic server 8.1".

I am using bea workshop studio 3.2, I am always getting an error like the following:
an internal error occurred during: "starting server -weblogic server 8.1".
anybody have an idea why this happen? The funny thing is that I can only start IBM websphere server, but not any of the BEA server (neither 9 nor 8.1). The moment I clicked green "start server" button, immediately I got a pop up window that says "an internal error occurred during: starting server -weblogic server 8.1".
I used to work with IBM websphere, now I changed my job to work with BEA. Based on my experience, WebSphere is way better and easier to use. BEA sucks!
But I have to use BEA and I have been fighting with this problem for 3 days and I am desparate now, please help!!!!
Thank you very much in advance for the help!
Jingzhi

Yes, I did create a webapplication before I started the server. The more scary thing is that: I somehow managed to start the server once, I do not know how I did it. But now I cannot start it again no matter what. I compared the two settings: I swear that they are idential, but one is starting, the other is still having the same problem. Could you please give me some more hints? I followed exactly the same steps in the articles you referred.
Thanks,
Jingzhi

An internal error occurred during: "Starting BEA WebLogic Server v8.1 at lo

Hi,
On "Start the server in debug mode"
file .log
eclipse.buildId=I20090611-1540
java.version=1.6.0_13
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=es_AR
Command-line arguments: -os win32 -ws win32 -arch x86
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!MESSAGE An internal error occurred during: "Starting BEA WebLogic Server v8.1 at localhost".
!STACK 0
java.lang.NullPointerException
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     at oracle.eclipse.tools.weblogic.legacy.GenericWeblogicServerBehaviour.setupLaunch(GenericWeblogicServerBehaviour.java:226)
     at org.eclipse.jst.server.generic.core.internal.ExternalLaunchConfigurationDelegate.launch(ExternalLaunchConfigurationDelegate.java:101)
     at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:853)
     at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:703)
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     at org.eclipse.wst.server.core.internal.Server.startImpl2(Server.java:3057)
     at org.eclipse.wst.server.core.internal.Server.startImpl(Server.java:3007)
     at org.eclipse.wst.server.core.internal.Server$StartJob.run(Server.java:294)
     at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
OS= Windows XP SP2
Eclipse Java Version= 1.6.0_13
Workspace Java Version= 1.4.2_08
BEA Weblogic= 8.1.6
Eclipse= 3.5.0
WTP= 3.1.0
Project Facets= Dynamic Web Module 2.3
Java= 1.4
Tanks and sorry my English.
Gustavo

I am also experiencing the same NullPointerException when launching Weblogic 8.1 in debug mode within Eclipse 3.5. Is there any anticipated fix for this issue, or a bugtraq record that we can follow to know when the issue is addressed? I do not expect JSP debugging to work (as it wasn't available with Weblogic 8.1 under Eclipse 3.4 either) - BUT right now I cannot debug ANY server-side code within Weblogic 8.1 in Eclipse 3.5 as the server cannot start in debug mode at all.
Many thanks.

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Hello ddominikaa and welcome to community,
Kindly remove the battery and disconnect the power adapter, press the power button for 10 seconds connect the power adapter and check if the display comes.
If the display does not come and laptop is in warranty then contact the support center and get the service case log.
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Welcome to Apple Discussions!!
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Internal display normal during start up but goes black with external monitor showing desktop

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