Paul W. Abrahams wrote:
At the moment I can't even run Sax2 because I'm back in the state where the screen fills with vertical lines. But I haven't tried sax2 -l yet, and that might help a little.
Boot to runlevel 3, log in as root, and run sax2 (no parameters) from the console. The screen will come up in a "suggested" video mode, which should be a standard SVGA mode.
using X-configure and adding two stanzas to the Monitor section of XF86Config:
HorizSync 31.5-48.5 VertRefresh 40-70
I don't know how to get that effect out of Yast or Sax2, however.
This is from memory: sax2 will come up with an expandable tree on the left. The top selection is monitor/video card configuration. Expand that tree. The frequency ranges can be entered in one of the tabs in the monitor configuration selection, which I believe is the first selection.