I have two Dell P1110 monitors and 2 video cards in my system:


01:00.0 VGA compatible controller: nVidia Corporation NV5 [RIVA TNT2/TNT2 
Pro] (rev 15)
02:07.0 VGA compatible controller: ATI Technologies Inc 3D Rage Pro 215GP 
(rev 5c)

trying to run both at:

1600 x 1200 at 85 Hz

using xfree-4.3.0-r3 (gentoo)

at a depth of 24 one will be at 106.1 Khz/85 Hz 1600x1200 and the other at 
87.7Khz/70Hz 1600x1200
at a depth of 16 both are at 106.1Khz/85Hz 1600x1200 (and I don't feel 
like I'm going to puke!)

I don't understand why one monitor will drop down in hsync and 
VerticalSync.  Maybe my XF86Config file is lacking?  Can I force refresh 
rates (H and V) on the mode lines?  Anyone have a favorite resource for 
figuring this out..  I must be googling with the wrong word.  not getting 
much info.

here's what I do have inmy XF86Config:

Both monitors are the same so here's the monitor section:

Section "Monitor"
          #DisplaySize      400   300     # mm
          Identifier   "Monitor0"
          VendorName   "DEL"
          ModelName    "DELL P1110"
          Option      "DPMS"
          HorizSync   30-121
          VertRefresh 48-160
EndSection


Here's the vid cards section (leaving out comments):
Section "Device"
.
.
          Identifier  "Card0"
          Driver      "ati"
          VendorName  "ATI"
          BoardName   "3D Rage Pro 215GP"
          ChipSet     "ati"
          ChipId      0x4750
          ChipRev     0x5c
          BusID       "PCI:2:7:0"
EndSection

Section "Device"
.
.

          Identifier  "Card1"
          Driver      "nv"
          VendorName  "nVidia Corporation"
          BoardName   "NV5 [RIVA TNT2/TNT2 Pro]"
          BusID       "PCI:1:0:0"
EndSection

the Display subsections  in the Screen sections (for each screen) are like 
this for depths of 8,15,16,24 and 32:


Subsection "Display"
              Depth 16
              Modes "1600x1200" "1400x1050" "1280x1024" "1280x960" 
"1152x864" "1024x768" "800x600" "640x480"
     EndSubsection

john

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