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*Huge* problem affecting all codecs.. can't reformat, help!
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serpentor
Newbie
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23. June 2004 @ 15:17 |
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About 2 months ago, without changing any codecs except the odd Xvid upgrade here and there, I started to notice vertical bands on many files types. Over the past 2 months, the bands have increased in number and size, affect nearly all file types (mpeg2,divx,xvid,asf,wmv). I've tried multiple codec installations/deinstallations (always making certain to unregister and delete the .ax files). The bands simply change color and increase in quanity when switching between Divx 5.1, Xvid 1.0, ffdshow, 3ivx, etc. Oddly enough, screenshots of the artifacts come out perfect.. so I had to take pictures of my screen with my phone's digicam. You can see how distracting the artifacts/bands are to all video watching..
http://www.geocities.com/bentleybrian/image1.jpg
http://www.geocities.com/bentleybrian/image2.jpg
I believe I have isolated it to a NON-codec issue. After uninstalling my video driver (nVidia 28.42's on a Geforce4 Go 420, Toshiba Tecra laptop), I noticed that while in plain XP VGA mode, the artifacts completely disappear and movies play fine (though choppy since no driver is installed). I have since tried over 6 different driver revisions and yet still, the problem remains. I've also upgraded to DirectX 9.0b with no luck.
I have literally been pulling out my hair trying to figure out what's causing these strange artifacts (intensive googling and codec forum searching has come up dry). Reformatting is not an option unfortunately. Any help, ideas, or suggestions would be TREMENDOUSLY APPRECIATED!
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serpentor
Newbie
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23. June 2004 @ 15:24 |
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Praetor
Moderator
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23. June 2004 @ 17:38 |
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Quote:
I believe I have isolated it to a NON-codec issue.
Makes sense cuz if it was a codec issue... WOW lol
Quote:
nVidia 28.42's
Quote:
I have since tried over 6 different driver revisions
Have you tried anything recent? The 28's are aaaaaaaaaaaaaaaaancient. Does this only happen when you play your movies fullscreen?
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serpentor
Newbie
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24. June 2004 @ 05:51 |
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I'm using the 28.42's as they are the most recent versions supported by Toshiba.. I have tried many more recent versions, including the latest on nVidia's site, with no luck.
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serpentor
Newbie
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24. June 2004 @ 12:33 |
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Happens in both windowed and full-screen mode.
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Praetor
Moderator
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24. June 2004 @ 13:59 |
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Any luck if you drop the color depth to 16bit?
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serpentor
Newbie
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25. June 2004 @ 10:37 |
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Altering color depth has no affect..
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serpentor
Newbie
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1. July 2004 @ 07:54 |
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Ok after trying every nVidia driver version known to man, I've narrowed it down to specifically a *directdraw issue*. Enabling directdraw hardware acceleration causes the artifacts, disabling it and the video is back to normal (although framerate/resolution suffer). I'm running the very latest DirectX 9.0b. I'm pretty sure the issue wasn't present under DirectX 8.1, although I cannot uninstall 9.0b, and overwriting the ddraw.dll with 8.1's version is not successful.
Does anyone have any ideas on how I could rectify this situation? This problem has plagued me for months and I feel like I'm finally close to solving it for good. Thx for all the help thus far.
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Praetor
Moderator
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1. July 2004 @ 08:46 |
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Well this is interesting... i wouldnt have thought DDraw to cause that kind of problem! Might it be something with the "overlay" settings?
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serpentor
Newbie
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1. July 2004 @ 09:54 |
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nView overlay settings are disabled. I also tried adjusting every setting in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\DirectDraw with no success..
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serpentor
Newbie
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3. July 2004 @ 08:05 |
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Reverting back to Directx 8.1 did not fix it either..
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