Help

Start a discussion
UNSOLVED

rickhuizinga

updated

19 years ago

Closed

R

rickhuizinga

4 Posts

0

11786

December 18th, 2007 05:00

XPS M1330 Screen Brightness Fluctuations Normal?

I just purchased a refurbished XPS M1330, and have noticed that there are slight screen brightness fluctuations when using the laptop on battery power.  The fluctuations occur during use of the laptop as the overall content of the display changes.
 
As an example, when viewing this page as I enter this text, the screen is slightly darker when scrolled to the top of the page, and brighter as I scroll down and get the dark "forums Learn. Share. Explore." graphic off the screen.  If I scroll back up (with the graphic on the screen, the brightness of the screen dims.
 
This doesn't seem normal to me, and am debating if I need to return this laptop.  Am I missing something?  Is there some auto-screen-brightness feature that is causing this?
 
Thanks!
  • R

    rickhuizinga

    4 Posts

    217

    0

    Posted December 18th, 2007 16:00

    I found the cause of the screen brightness fluctuations:
     
    Intel DPST (digital power savings technology) was enabled, causing dynamic changes to the backlight brightness based upon what was currently being displayed on the screen.
  • H3

    Harry 3G Tech

    17 Posts

    217

    0

    Posted December 23rd, 2007 06:00

    Hi rickhuizinga,
     
    I have a similar problem: When I install the latest nvidia driver form Dell the display brightness goes down considerably. Have you noticed this on your M1330? Could this also be due to Intel DPST taking over some settings? How did you manage to stop this from happening? In the advanced settings (power menu) there is no instance of Intel DPST (Vista Ultimate). Thanks in anvance for your feedback. 

Dell Support Resources

Latest Solutions

View More