Need some help with a dimming problem

Ok I was using the consumer preview build 8250 for about 2 weeks with two monitors my main one being an actual lcd monitor connected by a DVI connector and the other being my TV connected with HDMI. and I noticed no dimming issues what so ever. recently I have added a second lcd to my computer and removed my TV from the mix I now use my hdmi cable in my ASUS monitor that I was using previously but now I am having issues with the screen "randomly" dimming I say randomly loosely because it does it at certain times Most of the time.. when looking thru the steam store once I scroll down thru a list about a fifth of the way the screen will dim and stay dim till I scroll back up same goes with web pages with videos also I noticed it happening While playing mass effect 3 multiplayer for you guys that have played the game, when I would look towards a enemy and the orange box would highlight the enemy my screen would dim and remain dim until I killed it or looked away... this is really becoming an severe annoyance and if anyone knows a remedy I would greatly appreciate it.. let me know if you need specs.. I have tried several different drivers with my video card and its still same results.. im hoping its just a setting I have over looked.

Oh and a quick add too.. this is only happening on my main monitor that is connected to my PC using the hdmi cable

Hi,

Type services.msc in the start page and press enter. Disable the Sensor Monitoring Service and stop it too. See how it goes.

Tried the Disable sensor montoring, It was already off the diming is also happening when windows popup anyone got any other ideas?

I had this problem on my Inspiron 1564, a BIOS update fixed it. Another thing that can fix it is locking the brightness of the screen in the BIOS (or turning the sensor OFF there). However I don't know if your BIOS support such things.

~Aeny

Im using a desktop PC so i don't have any options like that.. ive also recent noticed that the windows that pop up and make my monitor dim if i move them away from the center the screen undims

Anyone else got any great ideas.. its starting to get really old..

Did you update your motherboard bios yet?

Did you run a Windows Update to see if it installs a monitor driver? If the monitor is generic in the device manager, look into visiting the monitor's hardware manufacturer to get a driver to install.

Did you check the monitor properties to be sure that it is running at a resolution and also frequency intended by the manufacturer?

Ya man, the more I think about this, it sounds like HDCP kicking in and/or going wrong.

The stuff in my last post should set it well. I am guessing you don't have a monitor driver installed for it yet.

High-bandwidth Digital Content Protection - Wikipedia, the free encyclopedia

I didn't mention this in the thread I had in the Crashes and... section, but while there was a problem brewing, as well as random freezes, the screen brightness fell, and became better when the problem was resolved.