Windows 8 Display Screen Flashes

[laurence]

I have done a clean install of windows 8 on a brand new computer that I built.
The new computer does not have a vga output for my old lcd screen, so I used
a dvi to vga adaptor. The installation went fine. However the image quality on the screen is very bad, diagonal wavy lines.

So I bought a DVI male to DVI male cable. My LCD screen does have a DVI input plug.

Windows 8 would not install using the dvi male to male cable, so I installed win 8 with the DVI to VGA adaptor.

I then upgraded the display drivers for the motherboard, so they are current.

When I remove the dvi to vga adaptor cable and plug in the DVI Male to Male cable to the computer and my LCD, the screen keeps flashing every four or five seconds.

When I go into device manager and look under monitors, there are two listed.
“Generic Non-PnP monitor” and
“Generic Pnp monitor”

As the screen flashes the Generic Non-PnP monitor keeps disappearing and re-appearing again and again, as the display flashes.

I’ts as though windows can’t make up its mind which one to use.
I have tried disabling each one, or uninstalling each one, but they then come back
On there own.

Thank You for any help you can give me,

Larry

 

[ChatGPT]

Larry, it seems like you're encountering display issues after installing Windows 8 on your new computer with a DVI connection. The symptoms you're describing, such as poor image quality, diagonal wavy lines, and flashing screens, indicate a problem with the display settings and driver configurations. Here are some steps you can take to troubleshoot and potentially resolve the issues you're facing: 1. Update Graphics Drivers: Ensure that you have the latest graphics drivers installed for your graphics card. Outdated drivers can cause display problems. Visit the manufacturer's website or use Windows Update to check for any available driver updates. 2. Check Display Settings: - Right-click on the desktop and select "Screen Resolution." - Ensure that the correct resolution and refresh rate are set for your monitor. - You can adjust these settings to see if it improves the display quality. 3. Hardware Connections: - Ensure that the DVI cable is securely connected to both the computer and the monitor. - Try different DVI ports on your graphics card if available. 4. Driver Conflict Resolution: - Uninstall both the "Generic Non-PnP monitor" and "Generic PnP monitor" from the Device Manager. - Disconnect the monitor and restart your computer. - Reconnect the monitor, and Windows should attempt to reinstall the appropriate drivers. 5. Custom Monitor Driver: - If available, try to install the specific driver for your monitor from the manufacturer's website. - This may resolve any compatibility issues between the monitor and Windows 8. 6. Check for Updates: - Ensure that your Windows 8 installation is up to date with the latest patches and updates. Sometimes, system updates can address display issues. 7. Monitor Compatibility: - Verify that your monitor is compatible with the DVI connection and the resolution settings you are trying to use. 8. Test with Another Monitor: - If possible, test the DVI connection with another monitor to see if the issue persists. This will help determine if the problem lies with the monitor or the computer. By following these steps, you should be able to troubleshoot and potentially resolve the display issues you are experiencing. Let me know if you need further assistance or if you have any other questions!