Quote Originally Posted by Ryo_
My bad, wasn't clear enough, sorry...

My (old) graphics card is an ATI@PLAY, 4MB chipset, using mach64 chip, i think. It supports 1024x768 32bbp.

But the monitor itself can only do 1024x768 in interlaced mode. The horizontal refresh rate i got under Windows is: 87 hz interlaced.

So Knoppix's autodetect correctly sees the card, but uses it in 1024x768 with an invalid refresh rate for the monitor (can't tell which), thus the console / XWindow is totally unreadable (everything is duplicated 4 times...)

Using fb800x600 works, of course, but i'd rather have 1024 since i CAN do it...

Thanks in advance.
I have an old ATI Rage with 4mb and monitor on a machine here try at the boot: prompt knoppix noddc xmodule=ati xvrefresh=60 screen=1024x768 that's was the only way I could ever get the higher resolution.