Demian -- this is *very* interesting and helpful.
I have tried a couple of your suggestions and have found the following:
1. Running another small video first (I just use a small avi) does work as long as I start the video I want while the other dummy one is still running.
The clear screen persists even after the original video finishes and even if I continue to shuttle back and forth between normal and full-screen.
1. Setting: Option "NvAgp" "0" (or "1")
doesn't seem to make a difference for me.
I added the above line to my XF86Config, restarted the X-server (with ctl-alt-backspace) and tried again. I looked in the XF86 log and confirmed that AGP was indeed disabled.
3. I am not sure which specific kernel modules you are referring to by AgpArt.
My kernel configuration (adapted from the RH8.0 one and recompiled for 2.4.20) contains the following AGP references:
# CONFIG_AGP_AMD_8151 is not set
AGP support does seem to be compiled as a module though.
Do you mean something different by AgpArt??
Great work though!!!!
To me it is still not clear whether the problem is in XF86, the AgpArt kernel driver, or the nVidea driver
Hopefully we can continue to narrow down the problem and get it fixed the right way!
Fedora Core6/Linux 2.6.x
nVidea driver: 9631
Asus P4PE motherboard
Intel P4 2.8GHz
1.5GB PC2700 DDR Kingston
Leadtek Ultra A250 GF4 4600 128MB with VIVO/TVO
WinFast TV2000XP Deluxe
Dell 1901FP 19" LCD
Antec 400W Power Supply