Originally Posted by lvanek
how much on-board video memory does the GeForce4 card have?
is this an AGP card? if so, how much graphics aperture memory is your bios setup with?
does the xorg log (in /var/log dirctory) look ok? how much video memory does the log report?
Thank you for your reply and suggestions.
The card has 128MB of memory and is AGP. The aperture size in the BIOS was set ot 64 so I changed this to 128. The log reports the correct amount of memory.
The Xorg.log file shows some problem with refresh rates:
config file hsync range 30-71kHz not within DDC hsync ranges.
config file vrefresh range 43-85Hz not within DDC vrefresh ranges.
The manual for my monitor says the refresh rates are 30-86 Horizontal and 50-150 Vertical but I've tried these values but to no avail. I've got an install of Suse and it seems to be using the 30-71 and 43-85 range and the graphics performance is much better than with Fedora.
3D acceleration seems to be configured. Here is the output from glxgears:
12827 frames in 5.0 seconds = 2565.400 FPS
13894 frames in 5.0 seconds = 2778.800 FPS
13939 frames in 5.0 seconds = 2787.800 FPS
13941 frames in 5.0 seconds = 2788.200 FPS
13936 frames in 5.0 seconds = 2787.200 FPS
I've played some games with the current configuration and the performance is good. The problem seems to be with the trailing windows I mentioned in the original post.
It looks very shabby.
Any further hints greatly appreciated.