Interleaved when playing scaled videos

[puterguy]

I suspect that the following problem is an nVidia driver problem and would like to get other people's inputs here.

I have been using mplayer to play back avi clips and dvds.

Mplayer displays videos perfectly sharp when playing AVI files or DVDs at normal size.

When I try to play at double-screen size or full-screen size
(1280x1024), the picture doesn't seem to scale properly. Looking
closely at the screen, it seems that instead of properly scaling the
picture, 1 pixel thin horizontal black lines are interleaved between
every few original image lines in a regular pattern. It looks
somewhat like this (where even between the closest-spaced black lines, there are perhap 5 or 6 normal image lines):

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etc.


The effect is worse at full-screen than at double-screen. The result
is that the picture looks very jagged and blurry and thus is almost
impossible to view.

I have tried playing with some of the options on the gmplayer menu
e.g. turning on/off interleaving, adjusting cache size, turning on/off
direct rendering, adjusting postprocessing...

I am running RH8.0/Linux2.4.20 on a P4 2.53GHz with 1Gig PC2700 DRAM
and a Leadtek Ultra A250 GF4 (nvidia 4600) graphics card running the
latest nvidia drivers (NVIDIA_GLX-1.0-4191.i386.rpm
NVIDIA_kernel-1.0-4191.src.rpm)

I am using the following packages downloaded from psyche.freshrpms.net
mplayer-0.90-fr0rc2.1.i386.rpm
aalib-1.4rc5-fr1.i386.rpm
libdvdread-0.9.3-fr2cvs.i386.rpm
divx4linux-4.0-fr3.20011025.i386.rpm
lirc-0.6.5-fr3.i386.rpm
lame-3.92-fr5.i386.rpm
libdv-0.98-fr2.i386.rpm
libdvdcss-1.2.4-fr1.i386.rpm

I suspect that this is more of a driver than an mplayer problem.
Any thoughts on what might be going on here???

[Bonbo]

I was using these new drivers until i had some nasty bugs popup while using mplayer

was watching video and all of sudden hardlock.
->boot
was watching video and overlay exploded (xv)
was still able to watch thru -vo gl2 (opengl) but xv was gone.
well no more new drivers after that 31 works fine.