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Dual monitors in WinXP w/ NVIDIA GeForce PCX 5750 - Unable to detect 2nd monitor

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Last Modified: 2013-11-08
Problem: Unable to detect 2nd monitor, although both monitors display normally on boot. Once Windows started, only one monitor displayed.

  - Single card has one monitor plugged on VGA, one on digital.
  - Not using Adobe Type Manager.
  - Changed graphic cards drivers, tried all Display Properties>Settings for multiple monitors.
  - After updating driver, 2nd monitor no longer displays normally during system boot (is blank)
  - Driver rollback "fails:" takes me to 4-bit driver
Comment
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Nvidia drivers typically come with the Nview window manager.  Have you tried setting up the second monitor in there? Here is an excellent walkthrough from EVGA

http://www.evga.com/Support/Guides/XP_NView.pdf

Hope that helps.

Author

Commented:
What applies doesn't work. I have the NVIDIA control panel>Set up multiple displays

Author

Commented:
Incidentally, The NVIDIA Smart Scan tool shows that for the NVIDIA GeForce PCX 5750 I have v175.19, which it considers "the latest driver installed for your GPU. No driver update is necessary at this time."

Author

Commented:
I also have installed the NVIDIA System Monitor, System Update and nTune
CERTIFIED EXPERT

Commented:
Try booting in either Safe Mode or VGA Mode - see if you can get the 2nd monitor to show anything.

Commented:
A couple of things to try:

Just to rule out the monitors themselves, if you can switch monitor connections, see if the behaviour is exactly the same with the monitors reversed.

Check your monitors themselves, I have several that have a channel selector, and if you happen to have it on the wrong channel it will not come up at all - or show as attached to the system!

Also, check your BIOS settings and ensure that everything is enabled.  The fact that the monitor is not even showing during system boot is very puzzling indeed, as the Windows driver has not even entered the game at that point.


Author

Commented:
I agree: I think the issue that the monitor WAS showing during system boot and then stopped showing during system boot is likely significant. Will try swapping connections/monitors.

Author

Commented:
VGA vs digital acts the same regardless of which monitor is plugged in

Author

Commented:
No changes to BIOS, monitor worked then didn't.
Might sound obvious but have you checked the pins in the VGA/DVI connectors, I have had problems in the past with bent pins.

Are the monitors different makes/modles/sizes?

Author

Commented:
VGA vs digital acts the same regardless of which monitor is plugged in [Comment: 11/11/09 06:16 PM]
Commented:
This one is on us!
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Author

Commented:
Good advice!

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