Triplehead config problem - one monitor stays black
I've searched a lot around this forum and other sources, but could not find anything helpful. If someone had an idea or a good guide that would be appreciated.
My Setup: 2x graphiccard (quadro fx 3400+quadro fx 3500) with 3 monitors (tft, 20") attached to 2x fx3500 and 1x fx3400) on linux ubuntu 8.04. All cards, monitors, cables are ok (switched primary card in bios, changed monitors).
I want to have all three monitors together in X as one display. I DON'T want high performance, 3d, compiz or other stuff, I have to work with it and only need some terminals, editors and rdesktops.
What I did: Install the nvidia driver, run nvidia-xconfig, then nvidia-settings. I select all three displays as own screens (no twinview since I have 3 monitors) and use Xinerama (checkbox in nvidia-settings). I save the config (no merge to have a clean config) and restart X, but the third screen (attached to the fx3400) stays black.
Althrough X sees both cards and all three monitors, it only processes the first two screens.
No Error and no warning, it's just ignored!
When I run nvidia-settings again, the third monitor is again disabled (see screenshot).
I have no more ideas. I've tried setup with twinview plus one screen, with different displays, changed the position and panning - no change.
I've attached the logs+config (bug report), does anyone have an idea? The setup worked on my old system, so there must be a way! As I said, I do not want any glx or high performance, just my three monitors!
Thanks and best regards