William, Have you tried the latest NVIDIA drivers, since I notice you are using an older version (180.44) and my dual monitor has improved with the latest version.
http://www.nvidia.com/Download/index.aspx?lang=en-us And I think you require this one. http://www.nvidia.com/object/solaris_display_185.18.14.html Andrew > It gets more interesting; when I changed from a Dell 2001 FP to a 20.1" Sun > monitor for the second display, an attempt to configure it just crashes the X > server when I click "apply": > > (II) NVIDIA(0): Setting mode "nvidia-auto-select" > (WW) NVIDIA(0): Due to hardware capability constraints, disabling display > (WW) NVIDIA(0): device SUN X7200A (DFP-1) in MetaMode > (WW) NVIDIA(0): > "DFP-0:nvidia-auto-select at 1920x1200+0+0,DFP-1:1600x1200_60 at > 1600x1200+1920+0". > (II) NVIDIA(0): Setting mode > (II) NVIDIA(0): > "DFP-0:nvidia-auto-select at 1920x1200+0+0,DFP-1:1600x1200_60 at > 1600x1200+1920+0" > > Backtrace: > 0: /usr/X11/bin/amd64/Xorg'xorg_backtrace+0x32 [0x4a82a2] > 1: /usr/X11/bin/amd64/Xorg'xf86SigHandler+0x41 [0x4d2101] > 2: /lib/amd64/libc.so.1'__sighndlr+0x6 [0xfffffd7fff2bb076] > 3: /lib/amd64/libc.so.1'call_user_handler+0x2a7 [0xfffffd7fff2adfaf] > 4: /usr/X11/lib/modules/extensions/NVIDIA/amd64/libglx.so.1'0xc45ae > [0xfffffd7ffd9c45ae] > 5: [0x0] > 6: [0xc9c90000] > > Fatal server error: > Caught signal 11. Server aborting > > I've filed http://defect.opensolaris.org/bz/show_bug.cgi?id=9486 on it. > > These configurations were trouble-free with my old Quadro FX 1400; perhaps I > need to remove the NVS 290 and replace it with the older card. :( > > William Kucharski