Video to Pixcelated on 8600GT

[Montek]

I trying to playback video files on my pc with VLC and Windows Media 9 and for some reason they are very pixelated especially noticible on edges of contrast colors i dont understand reason, i tried alot o settings nothing helps, someone know how to fix it?
I only noticed it as i upgraded my video card and installed nvidia drivers.
Forceware v169.21, video 8600GT DVI2VGA adapter CRT 1024x768, hardware acceleration set to full in control panel.

Example, 2 times magnification it should not show any pixelation.
http://img339.imageshack.us/img339/475/pixge4.jpg

 

[BernardP]

What the picture is showing is aliasing/stairstepping, not pixelisation. Pixelisation shows often as squares on surfaces of near-but not-quite uniform color

This could have more to do with setting up decoding preferences in the video codec (I assume Xvid or Divx ) You should look for some kind of edge-smoothing option.

 

[Montek]

Cant find anything that can fix this in divx xvid options

Though there seems to be some bug in my windows when i uninstalled both DivX and XviD i still able to play this videos, probably codecs messed up.

 

[BernardP]

You can try self-contained MPUI to see if the problem is codec or Windows related.

http://sourceforge.net/projects/mpui

Years ago, I had a similar problem with Windows 98. It had appeared after I installed and uninstalled a game demo. After much useless fiddling, I had to reinstall Windows to get rid of this aliasing.

 

[Montek]

No its still same although it slightly better for one file but same crappy for another. Could bt some driver setting or conflict i remember installing crap load of drivers on this OS, also there was some option in nvidia drivers to maker Deinterlancing i am not sure whatever this on or off cant find it now.

 

[Montek]

Phew reinstalled windows seems to be ok now, it was actually driver issue.

 

[BernardP]

Originally posted by: Montek
Phew reinstalled windows seems to be ok now, it was actually driver issue.

Sometimes, it is impossible to find out what is wrong and a reinstall is the only practical way to go. It was not the videocard after all.