Brand: Lenovo
Category: Monitor
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for L15
Uploaded: Nov. 21, 2025, 6:13 p.m.
Manual Publish Date: 2021-06-01
Warranty Information
Refer to the Lenovo Statement of Limited Warranty for full details.
Getting Started
Unpack contents, connect USB-C cable for normal usage or charging.
Power on the monitor. Install drivers from Lenovo website if needed.
Adjusting and Using
Optimize comfort and accessibility by arranging your workspace and positioning the monitor.
Use direct access controls for brightness, contrast, low blue light, and overdrive.
Select supported display modes and understand power management settings.
Care and Maintenance
Clean monitor with a soft, damp cloth. Avoid abrasive materials.
Wall mounting is optional, follow VESA mounting kit instructions.
Troubleshooting and error codes
| Problem | Possible cause | Suggested action | Reference |
| Out of Range message, flashing white power indicator | Unsupported display mode | Reconnect and adjust display mode; restart in safe mode; contact support. | "Selecting a supported display mode" on page 2-5 |
| Unacceptable image quality | Video signal cable not connected properly | Ensure cable is firmly plugged in. | "Connecting and turning on your monitor" on page 1-6 |
| Power indicator not lit, no image | Monitor not switched on; power cord issue; no power at outlet | Check power cord connection, outlet; try another cord/outlet; power on monitor. | "Connecting and turning on your monitor" on page 1-6 |
| Screen blank, steady amber or flashing white power indicator | Monitor in Standby/Suspend mode | Press a key or move mouse to restore; check power options. | "Understanding power management" on page 2-6 |
| White power indicator, no image | Video signal cable loose or disconnected | Ensure cable is properly connected. | "Connecting and turning on your monitor" on page 1-6 |
| Discolored pixels | Characteristic of LCD technology | If more than five pixels are missing, contact support. | "Appendix A, Service and Support" on page A-1 |
| Fuzzy lines or blurry image | Image setup not optimized; display properties not optimized | Adjust resolution to match native resolution (1920 x 1080 at 60 Hz); adjust DPI settings. | "Selecting a supported display mode" on page 2-5 |
| Monitor consumes power from notebook/phone without adapter | Adapter has no USB-C PD function | Use USB C to C adapter for charging. | "Understanding power management" on page 2-6 |
| L15 not powered by notebooks/phones | USB C ports lack power output or Alt-mode; insufficient power | Check USB C port capabilities; connect with adapter. | "Connecting and turning on your monitor" on page 1-6 and "Understanding power management" on page 2-6 |
| Normally displays charging symbol on notebook with 45W adapter, but no charging symbol on notebook | Insufficient power from L15 to notebook | Connect adapter to L15 and notebook to charge notebook. Use 65W+ adapter. | "Understanding power management" on page 2-6 |
| Monitor blinks or screen off when connecting with smartphones | Smartphones can't supply enough power; phone screen times out | Connect adapter to monitor, then monitor to smartphone. Set screen timeout to "never." | "Understanding power management" on page 2-6 |