Vostro v130 display brightness fix

We had problems with of some vostro v130 not able to change the brightness of the screen in Windows 7.  FN + Fn + down arrow or show the indicator light on the screen, but it would move only 1 bar upwards or downwards and the brightness will not change.  For a single user, this was very damaging because the brightness was frozen at the lowest setting, causing eye fatigue.

I wanted to share the FIX for this because it took us a few hours to understand (Yes, we tried the driver, video, chipset drivers settings updates, updates to the bios, re - install quickset, etc...)

All you have to do is to go into the Device Manager (start and type devmgmt.msc).

Expand monitors

Click monitor generic PnP (RM DPMS) and press DELETE on your keyboard.  Confirm this action.

Right-click at the top of the tree (the name of your computer) and choose check for material changes.

You will see the brightness of the screen instantly updated.  Expand monitors and now (RM DPMS) is charged to it and Fn + TOP or Fn + down arrow now work and you can change the scale of brightness (0 to 15 bar).

Hope I save you hours of troubleshooting and cleaning driver / updating / tweaking settings.

Eureka! You are a God!  I knew there was an easy solution, I did before and I forgot what it was.  Is better that throw the laptop!

Tags: Dell Laptop

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