Lenovo 2448HB6 User Manual - Page 18
Selecting a supported display mode, Understanding power management, 60Hz
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Selecting a supported display mode The display mode the monitor uses is controlled by the computer. Therefore, refer to your computer documentation for details on how to change display modes. The image size, position and shape might change when the display mode changes. This is normal and the image can be readjusted using automatic image setup and the image controls. Unlike CRT monitors, which require a high refresh rate to minimize flicker, LCD or Flat Panel technology is inherently flicker-free. Note: If your system has previously been used with a CRT monitor and is currently configured to a display mode outside the range of this monitor, you may need to re-attach the CRT monitor temporarily until you have re-configured the system; preferably to 1440 x 900 at 60 Hz, which is the Native Resolution Display mode. The display modes shown below have been optimized at the factory. Table 2-3. Factory set display modes Addressability Refersh rate PAL 50Hz 640x350 70Hz 640x480 60Hz,66Hz,72Hz,75Hz 640x500 720x400 58Hz 70Hz 800x600 56Hz,60Hz,72Hz,75Hz 832x624 75Hz 1024x768 1152x864 60Hz,70Hz,75Hz 75Hz 1280x720 60Hz 1280x768 1280x1024 60Hz 60Hz,70Hz,75Hz,76Hz 1360x768 1440x900 60Hz 60Hz,R60Hz,75Hz Understanding power management Power management is invoked when the computer recognizes that you have not used your mouse or keyboard for a user-definable period. There are several states as described in the table below. For optimal performance, switch off your monitor at the end of each working day, or whenever you expect to leave it unused for long periods during the day. Table 2-4. Power indicator State On Standby/ Supsend Power Indicator Steady green Steady amber Off Off Screen Normal Blank Off Restoring Operation Press a key or move the mouse. There may be a slight delay reappears. Note: Standby also occurs if there is no image output to the monitor. Press power key to swich on . There may be a slight delay before the image reappears. Compliance ENERGY STAR ENERGY STAR 2-6 L1951p Wide Flat Panel Monitor User's Guide