Lenovo ThinkVision LT2423 24-inch FHD LED Backlit LCD Monitor - Manual (Page 16)

The display modes shown below have been optimized at the factory.
Table 20-3. Factory set display modes
Addressability Refresh rate
640 x 480 60 Hz, 72 Hz, 75 Hz
720 x 400 70 Hz
800 x 600 56 Hz, 60 Hz, 72 Hz, 75 Hz
832 x 624 75 Hz
1024 x 768 60 Hz, 70 Hz, 75 Hz
1152 x 864 75 Hz
1280 x 1024 60 Hz, 70 Hz, 75 Hz
1366 x 768 60 Hz
1440 x 900 60 Hz
1600 x 900 60 Hz, 75 Hz
1680 x 1050 60 Hz
1920 x 1080 60 Hz
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.
2-6 Flat Panel Monitor User’s Guide