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Refurb Toshiba L655 Screen Brightness Controls Problem

by maxxdout / February 1, 2011 7:06 AM PST


I recently acquired a refurbished Satellite L655 from Toshiba as a replacement for my L455. It's a great laptop, much better than the one I sent in to get fixed. Thank you Toshiba Happy

Anyways, I have a problem with the brightness controls.

When I use the brightness adjustment keys (function+F6 and F7), the brightness doesn't go up/down like it should. For example, when my screen is at 100% brightness, I press F6 key four times and the screen stays at the same brightness level, until I hit the F6 key a 5th time, it goes down to it's lowest setting. If I continue to hit the F6 key, the screen brightness goes back up a bit, then dims lower like it should after each hit of the F6 key.

I took a quick video with my iPod so hopefully that helps as I am not so good at explaining things like this:

Thank you!

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by pgc3 / February 2, 2011 12:09 AM PST

Can you adjust the brightness from power settings in control panel?

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by maxxdout / February 2, 2011 2:06 AM PST
In reply to: Brightness

And when I adjust it through power settings, it does the same thing the brightness keys do.

With my laptop I had before this one, the brightness would gradually decrease/increase smoothly, unlike this one.

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Screen Brightness Controls Problem with toshiba P500-12D
by smenager / July 30, 2011 10:15 PM PDT


I'm the owner of a Toshiba P500-12D and I have the same adjust brightness problem.

Have you found a way to solve it ?

I hope you can help me.


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Just fixed one last month.
by R. Proffitt Forum moderator / July 31, 2011 3:57 AM PDT

The owner had used registry cleaners and keep cleaning and they had killed the Toshiba TVAP application. I got lucky and found it on the Toshiba downloads for their machine and that fixed half the problems.

Makes you wonder why folk use registry cleaners.

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Unfortunatly, it didn't fix the problem.
by smenager / July 31, 2011 10:53 PM PDT


Thanks for the answer.
I follow your suggestions.
I uninstalled TVAP (TOSHIBA Value Added Package)
then I cleaned the registry with Ccleaner and reboot the computer.
Unfortunatly, it didn't fix the problem.

Can you give me the name of the tool you used to clean the registry ?

Have you an other way ?

Thanks a lot

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by R. Proffitt Forum moderator / August 1, 2011 2:38 AM PDT

I installed the TVAP and that cured that one. We liked that because the next step is a factory restore.

I do not use registry cleaners because they cause issues rather than cure them.

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by maxxdout / August 3, 2011 10:08 AM PDT

I thought we were getting somewhere finally after 4 months but it didn't seem to work, even after uninstalling TVAP and reinstalling a freshly downloaded TVAP. Any ideas?

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by R. Proffitt Forum moderator / August 3, 2011 10:57 AM PDT
In reply to: Nope

If drivers and TVAP do not correct it and SYSTEM RESTORE doesn't help we reload the OS.

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