Computers output resolutions that are out of range from what most LCD and Plasma units will display. With this in mind, try changing the output resolution of your computer in the display control panel. You'll probably need to output either 640X480, 1280X720, or 1920X1080 for your display to show the image. All of these must also be set to a 60Hz refresh rate.
If you don't have any of these resolutions available in your control panel and you are using Windows®, you can install Powerstrip. This program offers greater control over video parameters than what is standard in most computers. If your computer has an advanced graphics card, you may be able to configure Powerstrip to work. Follow these instructions to setup Powerstrip with advanced graphics cards. Ultimately, you'll need a dedicated scaler as a robust solution to change the output resolution of your computer to one that your display can handle.
- Powerstrip Configuration
- 1. Once Powerstrip is installed, there will be a small icon on the bottom right hand corner of the screen.
- 2. Right click the icon and go to ‘Display Profiles’ and then click on ‘Configure’. A new window will pop up that displays the current display resolution setting.
- 3. Click on the tab labeled ‘Advanced Timing Options’. A second window will pop up that has blue arrow keys on the left.
- 4. Click the tab below the arrow keys labeled ‘Custom Resolutions’. If you are not able to click this tab, then your graphics card does not support custom resolutions and Powerstrip will not work for this application.
- 5. Once you have access to the custom resolutions on the left side of the screen, scroll down to the 720p range of resolutions. They will have 720P in parenthesis next to the resolution. There are many of these resolutions to choose from.
- 6. Choose one of these resolutions then click the ‘Add New Resolutions’ tab to the right. If you are prompted to restart your computer then your graphics card cannot handle the resolution you just picked. Simply choose another until your computer accepts the resolution.
- 7. Once you have a resolution that works, simply click the close tab on the right hand corner. This will bring you back to the screen with the blue arrows.
- 8. To the bottom of the arrows are four tabs with + & - signs. Always choose the – signs for both Horizontal and Vertical.
- 9. Next, to the right of the blue arrows there is a Horizontal geometry scan rate. Click the down arrows until the display locks in and an image appears. This scan rate will generally need to be below 45khz in order to work.