1 Reply Latest reply on Oct 13, 2009 10:25 AM by Felix_M

    Intel 945GM

    Green Belt

      Hi all,


      I am trying to figure which is the register to write to for controlling the L_BKLTEN pin. I have tried using the LBB (Legacy Backlight Brightness) register but that only controls the intensity of the backlight, not able to turn it off entirely.


      Thanks in advance,


        • Re: Intel 945GM
          Felix_M BlackBelt

          Hi Terence:


          Welcome to the Intel® Embedded Community.  Let's start by confirming that your are working on an embedded system rather than a consumer-class laptop.  Can you say anything about your application?


          In the meantime, it sounds like you've already tried one approach which probably means that you have some relevant docs.   Just in case you don't already have it, let me give you a link to the 945 datasheet.  I have to tell you that I have no technical knowledge on this chipset but I did search this doc and there are several references to controlling the backlight in addition to the LBB register that you tried. 




          Let's see if someone out there in the community can help you.