William Kucharski wrote:
> I've recently installed a new generic PC containing a Quadro NVS 290, but my
> dual monitor setup no longer works.
>
> Specifically, monitor 2 is a Dell 2001 FP.
>
> The NVidia driver correctly probes the monitor, but trying to drive it at its
> native 1600x1200 at 60 Hz fails to bring the monitor out of sleep mode.
>
> I can reduce the resolution to 1280x1024, and that will wake up the second
> monitor, but as that's a non-native resolution it looks horrible.
>
> This same setup worked fine with an older Nvidia card in an Ultra 20, so it
> appears to be an issue with the Quadro NVS 290 and Twinview.
>
> (I also when playing with this get lots of errors about bad metamodes.)
>
> Is this a known bug?
>
>
No.
Quadro NVS 290 is supposed to support at least 154MHz pixel clocks out
of the second digital output for 1920x1200 reduced blanking.
(I'm assuming you are not using an analog cable). However, if the Dell
asks for VESA 1600x1200 at 60Hz this will require 162MHz.
The contents of /var/log/Xorg.0.log will offer clues including the maximum
pixel clock for each output. Starting the X server with " -logverbose 5"
provides even more clues.
You can also try forcing the use of 1600x1200 at 60Hz with reduced blanking.
In the second monitor section of /etc/X11/xorg.conf add:
ModeLine "1600x1200rb" 132.3 1600 1608 1672 1776 1200 1205 1215
1239 +HSync +VSync
Then call out that name in the modes section:
Modes "1600x1200rb" "1280x1024" "1024x768" "800x600" "640x480"
