Here is the graphics card.

Anyone knows what the 3 jumpers are for and if any of them might help with this problem?

What about motherboards, have you tried with a different motherboard?

Jumpers are usually for IRQ, 0-wait states,... try switching them and see what happens.

Same thing happens if I try the graphics card on my 486 or super socket 7 system. At first I thought I had bought a broken card, but it seems to work fine on other monitors I have.

This is a problem with the monitor not accepting video timings particular to the video mode the card is outputting. I have one Samsung which preduces similar result with a number of resolutions from old video cards. In theory it is possible to hack the video ROM to adjust the timings a little bit but it probably is not trivial, so change of card or the monitor is only viable option. I changed monitor and all problems are gone.

Tiido wrote:

This is a problem with the monitor not accepting video timings particular to the video mode the card is outputting. I have one Samsung which preduces similar result with a number of resolutions from old video cards. In theory it is possible to hack the video ROM to adjust the timings a little bit but it probably is not trivial, so change of card or the monitor is only viable option. I changed monitor and all problems are gone.

Is it normal then that the same monitor works with the vlb card that also has tseng labs et4000 series chip?
The monitor also works fine with even older trident ISA card.

Baoran wrote:

Is it normal then that the same monitor works with the vlb card that also has tseng labs et4000 series chip?
The monitor also works fine with even older trident ISA card.

Perhaps it's the "fault" of the VGA BIOS or the RAMDAC chip.
Or maybe a jumper setting for the VGA monitor causes an odd sync frequency.
Some older ISA cards had jumper settings for several monitor types (Standard VGA, NEC Multisync, VGA Mono, etc)

Baoran wrote:

Is it normal then that the same monitor works with the vlb card that also has tseng labs et4000 series chip?
The monitor also works fine with even older trident ISA card.

All the video timings are under software control, dependent on particular video BIOS used (or possibly driver in Windows, if it chooses to program everything directly without using any BIOS functions).

Could oldschool VESA/Refresh Rate utilities maybe force the two to get along? I don't know if something like UniRefresh would support such an old card as the ISA ET4000...