jagered video pixels

gem56
gem56 used Ask the Experts™
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hey guys,

i recently installed windows 7 and now im having problems with my videos. whenever i try and play a movie in VLC or MPC, the video quality is really pixelated when i go into full screen mode. its looks as if theres no 'blending' between pixels and everything becomes really jagered.

im running an 8800gts and ive just updated and reinstalled my gpu drivers and vista + klite codec packs. doesnt change anything....and the crap thing is that windows media player seems to be working just fine.

anyone have any ideas?

cheers
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Do you have the 186.18 Series Driver or the new 190.38 Beta Drivers?  Or do you have the WDDM 1.1 Drivers that come with Windows Update for the nVidia cards?

Author

Commented:
Hello Makaveli, thanks for your reply.

i have the '186.18_desktop_win7_winvista_64bit_english_whql' drivers.

after playing around a little more with it, i found that if i change the settings for "Output Mode" under Playback/Output to anything besides "System Default", then it works fine.

any idea why this is being caused or how i can change the system default to something more useful?

cheers
There has been a change to the way Windows 7 uses drivers.  They must be WDDM certified to be fully compatible.  The 186.18 drivers, while operational, were not WDDM certified.  If you ever happen to get a change, look at the Device Manager.
Right after you install Win7 you will see that it comes with a WDDM 1.1 certified driver.  But once you install a driver from the nVidia site, even though they work and are classified as Win7, they dont pass the WDDM certification.  So they are not listed as such.
WDDM from my understanding is Windows Device Driver Management.  I could be wrong.  But i believe that is what it stands for.  nVidia has not gone through the process to get all of the drivers they have released certified because they have released many updates since the Beta went live and well it would be pointless as it is only a Beta.
You might be able to find something within the nVidia control panel that might be of help.  Can also try to update to the new 190.38 Drivers.  While they have the Beta Tag they operate fine.  I am using them myself.

Author

Commented:
awesome. thanks for your help champ :)

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