Satellite P300 - white screen after waking from sleep state

I'm having this problem:
The LCD screen may be empty when the computer is "awakened" from the sleep state. Nothing is visible on the internal LCD or an external monitor.

There seems to be a solution:
An update of the firmware for a component in the main circuit of the computer solves this problem. This update must be performed by an authorized Toshiba (ASP) Service provider. Until arrangements are made for the update, restart the computer by pressing the power on button for a few seconds.

described here: [white screen after awakening from fallback status |]
I also found this, but it didn't really help me much further.
[Satellite P200D and WinXP: no display after waking from sleep mode |]
In fact, I think I'm able to solve myself, and I don't like not my laptop to be gone for two weeks or more. I just need some advice on where to find a correct upgrade. Is - this driver BIOS or graphics? Which version should download, where... etcetera. More tips on how to solve the problem are also welcome.

Edit: link and no need for words of line. : s
Edit2: grammar correction.



> An update of firmware for a component in the main circuit of the computer solves this problem. This update must be performed by an authorized Toshiba (ASP) Service provider. Until arrangements are made for the update, restart the computer by pressing the power on button for a few seconds.
If you check the Toshiba document you would see that your Satellite P300 is not related to this issue.

In your case I would recommend upgrading the BIOS and graphics driver.
In addition to keep your operating system up-to-date.

I had this problem under Win XP and a MS patch and an update of the graphics card driver helped solve this problem.

Tags: Toshiba

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