Brand: Lenovo
Category: Monitor
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for P27h-20
Uploaded: Nov. 21, 2025, 6:33 p.m.
Warranty Information
Refer to the Lenovo Statement of Limited Warranty for a full explanation of warranty terms.
Getting Started: Follow the setup poster for a quick overview. Connect cables (DP, HDMI, USB-C) to your computer and monitor. Power on the monitor and computer. Install the monitor driver from the Lenovo website. Register your product online for updates and support.
Adjusting Your Monitor: Optimize your workspace for comfort and accessibility. Adjust monitor height, tilt, and swivel for ideal viewing. Minimize eye strain by managing glare, lighting, and taking regular breaks. Reduce flicker and blue light emissions through OSD settings.
Troubleshooting: If you encounter issues like 'Out of Range' or poor image quality, check cable connections, display modes, and OSD settings. Consult the troubleshooting table for specific problems and suggested actions.
Troubleshooting and error codes
| Problem | Possible cause | Suggested action | Reference |
| The words "Out of Range" are shown on the screen, and the power indicator is flashing white. | The system is set to a display mode which is not supported by the monitor. | If you are replacing an old monitor, reconnect it and adjust the display mode to within the specified range for your new monitor. If using a Windows system, restart the system in safe mode, then select a supported display mode for your computer. If these options do not work, contact the Customer Support Centre. | "Selecting a supported display mode" on page 2-10 |
| The image quality is unacceptable. | The video signal cable is not connected with the monitor or system completely. | Be sure the signal cable is firmly plugged into the system and connected with the monitor. | "Connecting and turning on your monitor" on page 1-4 |
| The image quality is unacceptable. | The color settings may be incorrect. | Select another colour setting from the OSD menu. | "Adjusting your monitor image" on page 2-6 |
| The power indicator is not lit and there is no image. | • The monitor's power switch is not switched on. • The power cord is loose or disconnected. • There is no power at the outlet. |
• Be sure the power cord is connected properly. • Be sure the outlet has power. • Power on the monitor. Try using another power cord. • Try using another electrical outlet. |
"Connecting and turning on your monitor" on page 1-4 |
| Screen is blank and power indicator is steady amber or flashing white | The monitor is in Standby/Suspend mode | • Press any key on the keyboard or move the mouse to restore operation. Check the Power options settings on your computer. |
"Understanding power management" on page 2-11 |
| The power indicator is white, 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 1-4 |
| The power indicator is white, but there is no image. | The monitor brightness and contrast are at the lowest setting. | Adjust the brightness and contrast setting on the OSD menu. | "Adjusting your monitor image" on page 2-6 |
| One or more of the pixels appear discoloured | 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 Centre. | Appendix A, "Service and Support" on page A-1 |
| • Fuzzy lines in text or a blurry image. • Horizontal or vertical lines through the image. |
Your system Display Properties setting have not been optimized. | Adjust the resolution settings on your system to match the native resolution for this monitor: 2560 x 1440 at 60 Hz. | "Adjusting your monitor image" on page 2-6 |
| • Fuzzy lines in text or a blurry image. • Horizontal or vertical lines through the image. |
Your system Display Properties setting have not been optimized. | 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. |