Cannot adjust the brightness of the screen after the new installation of Windows 7

I have a Pavilion dv2945se notebook. I have completely updated the Nvidia geforce 7150 m drivers. My laptop came with Windows Vista Home Premium 64-bit, and I did a new install of Windows 7 Home Premium 64-bit. I can't adjust the brightness of the display. I narrowed down the problem to the generic PnP Monitor driver. How can I solve this problem?

Edit: I mean "impossible to adjust the brightness of the display" that every time I go into power options and trying to use the cursor, Windows Explorer crashes. Also, my fn + F7 and F8 keys light work before I connect to windows, but not after. I think that something will charge when I connect to windows that is causing the problem. So I went in Mode safe, but then all that allows to control the brightness has not loaded when I went into safe mode, which was not helpful. I also went into MSConfig and disabled all startup programs, but again, I have the same problem. The brightness of the keys work before connect you to Windows, but not thereafter.

When I turn off the device generic PnP monitor (1) can't adjust the brightness at all and (2) the Power Options window stops freezing. That's how I've narrowed the problem to the generic PnP Monitor driver.

I finally solved this by uninstalling the driver for the ALPS touchpad. Because there are no Windows 7 drivers for my laptop even though it is listed in the models capable of upgrading to Windows 7, I used Windows Vista touchpad drivers. It was the cause of my problem with brightness adjustment. I don't know why it worked, but I've narrowed it down by disabling all processes start and then from their one at a time to see what caused the problem. As soon as I started Apoint.exe, I started to have problems.

Now, I just have to find a way to disable the touchpad tapping without the ALPS drivers.

Tags: Notebooks

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