any experience with voodoo 4500/5500 framebuffer @ high pixclocks?

[Jurriaan on Alpha <thunder7@xs4all.nl>]

My voodoo 4500 pci doesn't work that well with 2.4.17pre1/2 and a
resolution of 1600x1200-16@80. I did get the latest 3dfx patches, but
they also don't work. X works perfectly. 

Is there any alpha user using a voodoo 4500/5500 with a framebuffer at
this resolution (or rather, at a pixel-clockrate of > 175 MHz) ?

I'd like to compare settings.

Thanks,
Jurriaan
-- 
"Bother!" said Pooh, as he saw the Predator knock out Arnold cold
GNU/Linux 2.4.17-pre1 on Debian/Alpha 64-bits 988 bogomips load:0.11 0.16 0.07