What to do if my Lenovo L28u-30 screen is blank and the power indicator is amber?
If your Lenovo monitor's screen is blank and the power indicator shows amber, it likely means the monitor is in Standby/Suspend mode. To restore operation, press any key on the keyboard or move the mouse. Also, check the Power Options settings on your computer.
General| Color depth | 10 bit |
|---|---|
| Pixel pitch | 0.16 x 0.16 mm |
| Screen shape | Flat |
| Pixel density | 157.35 ppi |
| Response time | 6 ms |
| Backlight type | W-LED |
| Display diagonal | 28 \ |
| Display technology | LED |
| Native aspect ratio | 16:9 |
| Maximum refresh rate | 60 Hz |
| Response time (fast) | 4 ms |
| NTSC coverage (typical) | 99 % |
| Viewable size, vertical | 359.78 mm |
| Contrast ratio (dynamic) | 3000000:1 |
| Contrast ratio (typical) | 1000:1 |
| Display number of colors | 1.07 billion colors |
| Viewable size, horizontal | 631.93 mm |
| Display brightness (typical) | 250 cd/m² |
| Supported graphics resolutions | 3840 x 2160 |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50 - 60 Hz |
| Power consumption (max) | 48 W |
| Power consumption (off) | 0.3 W |
| Power consumption (standby) | - W |
| Power consumption (typical) | 31 W |
| Color name | Raven Black |
| Certification | CCC, TÜV Rheinland Eye Comfort |
| Product color | Black |
| Market positioning | - |
| Tilt angle range | -5 - 22 ° |
| Cable lock slot type | Kensington |
| Number of OSD languages | 8 |
| On Screen Display (OSD) | Yes |
| Panel mounting interface | 100 x 100 mm |
| DisplayPort version | 1.2 |
| VGA (D-Sub) ports quantity | 0 |
| Package depth | 127 mm |
| Package width | 738 mm |
| Package height | 452 mm |
| Package weight | 7500 g |
| Cables included | AC, HDMI |
| HDMI cable length | 1.8 m |
| Sustainability certificates | RoHS, ENERGY STAR |
Weight and Dimensions| Bezel width (side) | 2 mm |
|---|---|
| Depth (with stand) | 219.98 mm |
| Width (with stand) | 636.94 mm |
| Height (with stand) | 450.82 mm |
| Weight (with stand) | 5200 g |
| Bezel width (bottom) | 22.8 mm |
| Depth (without stand) | - mm |
| Weight (without stand) | - g |
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