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Brightness adjustment disappeared

Davel -  
 Muslim88 -
Hello,

I have an issue with two PCs.
One is a HP Pro running Win7 64 with ATI hardware.

My screen has been very dark since this morning. Knowing Windows well, I’m looking for the appropriate settings in power options, but it turns out that the "Adjust screen brightness" menu no longer appears.

The screen accessible from [Windows]+[X] isn’t working either.

Strangely, I noticed the same problem on my personal PC last night, except that in this case, the brightness is turned all the way up and the adjustment is still not available. This PC is a Lenovo with an Intel chipset.

Both PCs are running Win7 64, one is professional and the other is home.

Has anyone ever had this problem? Could it be a Windows update causing it? It’s strange that two machines have the same issue at the same time.

Thanks in advance.

Configuration: Windows 7 / Chrome 30.0.1599.101

5 answers

  1.
    steph810 Posted messages 1865 Registration date   Status Member Last intervention   152
     
    Hello,

    go to Start
    type
    Device Manager and enter

    go to Monitor "the one in question"

    right-click and uninstall make sure the driver is uninstalled as well

    there you go, it's done normally you should be able to adjust the brightness again
    10
    1. Snake77310 Posted messages 33 Status Member 15
       
      A big thank you, a few hours of struggle trying to fix the brightness on my Asus laptop until I came across your message... Everything is working again! ;)
      0
    2. oceane
       
      Hello, I have the same problem with a Medion Windows 7. Do I need to uninstall the digital flat screen? :o
      0