6 Replies Latest reply on Mar 22, 2016 9:34 PM by vilaria

    Graphics Driver + Other Problems


      Okay, so I recently bought a DELL XPS 15 (L521x)

      At first it was amazing, ran all my games awesome, and more importantly, I could adjust the brightness.

      Recently I am now not able to adjust my brightness. I believe it has to do something with the Intel HD Graphics 4000 driver I have installed....Here's why.

      If I uninstall my HD GFX 4000 Driver, I can then actually adjust the brightness. Now with the 4000 driver the scroll goes up and down, but the actual screen brightness stays the same. So I uninstall the 4000 GFX driver, but then about a minute later, my screen will flash black a few times, and POOF, the 4000 driver is re installed automatically, and then I can't change the brightness again.


      An addition to the brightness problem is that as you can see in [IMAGE 1] that some of my Skype Icons are pixelated, and in [IMAGE 2] that the check marks in my Windows 8 Start Menu, turn up as [] instead.


      My second problem is now all of a sudden my computer performance has DRASTICALLY decreased. The FPS has gone down about 50 fps, and even when I render a video, in my instance in Sony Vegas 12, it says it will take about 17 HOURS to render a 10 minute video. A 10 minute video used to take usually 1 hour at MOST.


      Please help, this was a very expensive laptop, and I want it to work again! Please!



      [IMAGE 1]




      [IMAGE 2]http://gyazo.com/68b5b43f21d67cca7b98bd5b37e8626d.png

        • 1. Re: Graphics Driver + Other Problems

          People please reply!

          • 2. Re: Graphics Driver + Other Problems



            Have you tried re-installing the manufacturer provided drivers?

            • 3. Re: Graphics Driver + Other Problems

              I did that and it worked, I put in the CD that came with the laptop and downloaded those drivers. Thanks! The brightness works now, and so does the start menu. The driver I was using must not be stable for my laptop yet. The Skype icons are still pixelated, but I guess it's just a derpy version of Skype.

              • 4. Re: Graphics Driver + Other Problems



                Glad you got the problem fixed. I've been having the same problem and have not found a permanent solution. I am looking for the drivers that you reinstalled from the CD because i have a XPS 14z and it came without the CD with the drivers (or I may have lost it). Is there a way you could upload a copy?

                • 5. Re: Graphics Driver + Other Problems

                  Intel HD Graphics 4000 and Windows 10 & Windows 8.1   ( Brightness fix with latest driver)




                  Brightness Fix with Driver Date 8/17/2015 )




                  Brightness problem Solved


                  Intel HD Graphics 4000 with NVIDIA® GeForce® GT650M graphics.




                  Intel HD Graphics 4000 Driver,     Driver Date: 8/17/2015


                  Driver Version:


                  Make sure you backup your registry first before proceeding!!!!


                  open regedit  in  Run Command


                  Registry has wrong value:


                  Currently reads as :


                  [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000] "FeatureTestControl"=


                                                                                            "Edit DWORD 32 bit"=       f000


                  Registry with New Value:


                  You needed to change the value in registry to:  (   f008   )


                  [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000] "FeatureTestControl"=


                                                                                           "Edit DWORD 32 bit"=        f008


                  Then Restart Computer


                  Brightness Fixed with Latest driver.


                  Let me know if this was helpful to you



                  • 6. Re: Graphics Driver + Other Problems

                    It's worked! Thanks bro!