Dual Monitors Setup – Dual Screen Setup Generic Non-Pnp Monitor Problem

by admin on July 19, 2013

Dual Monitors Setup – Generic Non-pnp Monitor

The other day we needed to setup dual monitors. And we knew how to setup dual monitors but we ran into a different problem. We installed a dual video card which would allow for the Dual monitors setup installed the driver but when we tried to adjust the resolution on one of the monitors we could not. The option to adjust the display resolution was grayed out.

The problem was that that specific monitor was installed as A generic non-pnp Monitor. And Windows 7 would not allow you to change the way it installs the Generic monitors. If Windows seven install a certain drive you cannot modify its settings unless you modify the registry.

So we started searching the registry for the Generic Non-pnp Monitor and we found it. Then since we had a dual screen setup we looked a the setting of the proper monitor since they were identical, and modified the appropriate ones. Then we merged the new registry settings from the Generic non-pnp monitor back into the registry and the issue was fixed.

The registry settings below belong to the Generic PNP Monitor but they have been altered to make changes to the registry for the Generic Non – Pnp Monitor.

How did we fix this Dual Screen Setup:
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E96E-E325-11CE-BFC1-08002BE10318}\0001] if you look at the address after the last Back slash you find monitor “0001″. 0001 is the identifier of the monitor which had the problem. And 0002 was the identifier of the monitor which was working properly. So all we did was to change the identifier of the exported registry setting and apply the working monitor’s settings to the non working monitor.

For this you need to export the registry settings for both monitors and have them saved in case you run into problems. If you cant get your image to appear on the screen, then power off the computer and when powering it on press the F8 function key. From the menu select with the arrow keys the “Enable low-resolution Video (640×480)”

Good Luck.
Generic PNP Monitor Settings

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E96E-E325-11CE-BFC1-08002BE10318}\0001]
“MaxResolution”=”1600,1200″
“DPMS”=”1″
“InfPath”=”monitor.inf”
“InfSection”=”PnPMonitor.Install”
“ProviderName”=”Microsoft”
“DriverDateData”=hex:00,80,8c,a3,c5,94,c6,01
“DriverDate”=”6-21-2006″
“DriverVersion”=”6.1.7600.16385″
“MatchingDeviceId”=”*pnp09ff”
“DriverDesc”=”Generic PnP Monitor”

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E96E-E325-11CE-BFC1-08002BE10318}\0001\MODES]

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E96E-E325-11CE-BFC1-08002BE10318}\0001\MODES\1600,1200]
@=”"

 

 

Generic NON PNP Monitor Settings

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E96E-E325-11CE-BFC1-08002BE10318}\0001]
“InfPath”=”monitor.inf”
“InfSection”=”NonPnPMonitor.Install”
“ProviderName”=”Microsoft”
“DriverDateData”=hex:00,80,8c,a3,c5,94,c6,01
“DriverDate”=”6-21-2006″
“DriverVersion”=”6.1.7600.16385″
“MatchingDeviceId”=”monitor\\default_monitor”
“DriverDesc”=”Generic Non-PnP Monitor”

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E96E-E325-11CE-BFC1-08002BE10318}\0001\MODES]

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E96E-E325-11CE-BFC1-08002BE10318}\0001\MODES\640,480]
@=”"

 

This Generic Non-Pnp Monitor fix can be used not only for Dual Monitors Setup but also for other instances where Windows automatically install a generic non-pnp monitor setup. To do so, just search the registry for the {4D36E96E-E325-11CE-BFC1-08002BE10318} registry class, and from there alter the configuration of your monitor setup.

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