Screen does not light after the start, but after standby on Satellite M100

Hello
I have some experience with computers and laptops, but this problem exhausted all of my knowledge.
My girlfriend has a Toshiba Satellite M100, PSMA1E. He currently works on Windows XP, SP3.
The laptop has always had problems closing/stand bye. He would stand bye and the screen would not. She would usually be manually turn off (holding the power button) and restart.

Same thing happened last week, but with me. I turned off the power button but when I turned it on the screen was completely black. After a few attempts, I realized that everything worked; I could hear the usual audio files and XP Boot, but there was no way I could get the job of the screen.

The strangest thing is that the CMOS/BIOS, one with the Toshiba logo settings screen, also does not appear. If it's an OS problem, I thought that I would be able to access the BIOS at least, but it does not work. FN + F5 does not work.

Then, strange yet something happened. I was turning it on and off with keyboard shortcuts and I realized that if I put on stand bye using shortcuts and then go back on the screen turns on perfectly well (there is a cause of adjustment resolution icons are irrelevant, but it works perfectly fine).

From that on I tried everything I know. Update the BIOS, all Windows XP updates, all Toshiba QuickFix, cleaning the registry with different tools, uninstall and reinstall the video driver (ATI Radeon X 1400) utility, shortcuts keyboard, power saver, tools hardware Toshiba, looking to start up programs, services, everything I could possibly think off.

What intrigues me is that the Toshiba start screen will not be displayed. I can't access the BIOS, but I tried to restore the standard values of the BIOS with Toshiba hardware tools. It did not work. I don't even know if reinstalling XP will work because whenever I turn it on it is all black and I have to make the stand bye / Tower on Tower.

When I have it plugged into an external monitor, I could see all starting the process (initial screen of the BIOS and Windows). I then tried to access the video driver display configuration but it would show only the external monitor. It would only detect the laptop screen after a stand bye / turn back on, and then it worked perfectly: the screen two screens simultaneously, extended, everything. Ah, changing BIOS selection automatic the LCD + external monitor does not work.

I am really puzzled here and I can't understand it. I really don't think it's a hardware problem, because the screen works 100% after the stand bye. I guess that XP is do something during the closing down that completely 'stops' my screen, even after starting, and then I can only turn it on with the thing stand bye.

Any help would be really appreciated!

Best,

Hi guys

I had a similar problem on a series of Satellite A200 and I could solve works to update the BIOS and update the graphics driver.
In addition, you must make sure that all available MS fixes and patches have been installed.

Unfortunately, but that's all I can suggest. If the problem persists and you would not be able to solve update components then an ASP needs to check.

Good luck

Tags: Toshiba

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