Originally Posted by Dewg
Download the latest drivers for the nVidia 425M. Run the install which will extract the files to C:\\NVIDIA\\[version]\\Vista\\International Go to: c:\\NVIDIA\\DisplayDriver\\[version]\\Vista\\International\\Display.Driver
You will see a file called nvmm.inf - edit that file in notepad. In the section [Manufacturer] there are two subsections: [NVIDIA_SetA_Devices.NTx86.6.0] and [NVIDIA_SetA_Devices.NTx86.6.1]
In the first section, add the following: %NVIDIA_DEV.0DF0.01% = Section006, PCI\\VEN_10DE&DEV_0DF0&SUBSYS_90771B0A
In the second section, add the following: %NVIDIA_DEV.0DF0.01% = Section008, PCI\\VEN_10DE&DEV_0DF0&SUBSYS_90771B0A
Save the file and run the SETUP.EXE in the c:\\NVIDIA\\DisplayDriver\\266.58\\Vista\\International folder. Should work now. BTW - this if for 32-bit Windows 7. If you're using 64-bit the sections in the INF file will be NTamd64 instead of x86.
This worked fine for the installation. THANKS. Very clear instructions.
Now my second display is wacky. Wacky means...
Win7 boots using the DVI connection on this older 15" screen, then switches to the new HDMI 24" monitor...But then instead of two screens, Win7 turns off the first monitor. When I move windows around, I can tell that the OS thinks the 15" monitor is on, but the signal has been turned off for some reason.
Any suggestions? I disabled and removed the device via Control Panel. No help.
I disconnected the HDMI cable and the system boots to the 15" monitor, but the monitor still gets shut off. I plugged the HDMI cable back in and the system is there on the 24" waiting and ready.
So I did everything again. Back to Safe Mode, ran Driver Sweeper, reinstalled 275.33 in normal mode with only the 15" DVI monitor. HDMI monitor was NOT connected at all. Everything was normal and the install proceeded normally on the 15" monitor. On final reboot, the 15" monitor was SHUT OFF. I plugged in the HDMI and there was the Win7 desktop waiting. The 15" monitor off without signal.