Dual-head on Precision 490 running RHEL4

Lars_Olsson at Dell.com Lars_Olsson at Dell.com
Wed Jul 25 04:24:20 CDT 2007

I'm trying to run Dual-head on a Precision 490 running RHEL4 but have
ran into some problems. It seams to be impossible to enable dual-head
via the display settings options. The "Second Video Card" options are
I followed the instructions in the nvidia manual, Appendix P.
Configuring Multiple X Screens on One Card.
After following the instructions my dual-head setup works just fine
though I cant edit any options in the display settings.
If I go to the Dual head tab and enable "Use dual head" the drop list
"Second Video Card" is empty as it was before editing the xorg.conf
and if I do any changes my xorg.conf gets overwritten and my settings
for dual-head is of course gone.
I have tried two diffrent nvidia gfx cards, nvidia Quadro NV 285 and
nvidia Quadro FX4500 but still get the same (errors?)
Should I be able to activate dual-head via the display settings or must
I do this manually in xorg.conf?
Thank you for your time.
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