Lenovo 6920AB1 User Manual - Page 19

Table 3-2. Troubleshooting (continued) Problem Possible cause Suggested action Reference Screen is blank and power indicator is steady amber or flashing green The monitor is in v Press any key on the Standby/Suspend keyboard or move the mode. mouse to restore operation. v Check the Power Options settings on your computer. "Understanding power management" on page 2-6 The power indicator is green, but there is no image. The video signal cable is loose or disconnected from the system or monitor. Be sure the video cable is connected with the system properly. "Connecting and turning on your monitor" on page 1-3 The monitor brightness and contrast are at the lowest setting. Adjust the brightness and "Adjusting your monitor contrast setting on the image" on page 2-3 OSD menu. One or more of the pixels appear discolored. This is a characteristic of the LCD technology and is not an LCD defect. If there are more than five pixels missing, contact the Customer Support Center. Appendix A, "Service and Support," on page A-1 v Fuzzy lines in text or a blurry image. v Horizontal or vertical lines through the image. v Image setup has not been optimized. v Your system Display Properties setting has not been optimized. Adjust the resolution settings on your system to match the native resolution for this monitor: 1440 x 900 at 60 Hz. "Adjusting your monitor image" on page 2-3 "Manual image setup" Perform automatic image setup. If automatic image setup does not help, perform manual image setup. "Selecting a supported display mode" on page 2-5 When working in the native resolution, you may find additional improvements by adjusting the Dots Per Inch (DPI) setting on your system. See the Advanced section of your system's display properties. Manual image setup If automatic image setup does not establish the image that you prefer, perform manual image setup. Note: Have your monitor powered on for about 15 minutes, until the monitor warms up. 1. Press at the bottom of the monitor to open the OSD menu. 2. Use or to select and press to access. 3. Use or to select Clock and Phase adjustment. Chapter 3. Reference information 3-3