NEC EA271U-BK User Manual - English - Page 36

DisplayPort, USB Type-C compatibility for 3840 x 2160 resolution Image is Noisy If the image of 3840 x 2160 resolution is noisy with a DisplayPort connection, please confirm the following: • Change the refresh rate to 30 Hz by using the computer graphic adapter's setting. Image is unstable or missing If the image is unstable or no image is displayed with a DisplayPort connection, please confirm the following: 1. Turn off the computer. 2. Touch the "MENU" key to open the No Signal OSD menu. 3. Touch the " " key to open the VIDEO INPUT menu. 4. Touch the " " or " " key to set the DisplayPort switch menu. Item Selection Description DP VER. 1.1 Set to DisplayPort 1.1a. * BIT RATE is set to HBR automatically. 1.2 Factory setting. Set to DisplayPort 1.2. BIT RATE* HBR HBR2 DisplayPort 1.2 setting with 3840 x 2160 (30 Hz) Maximum resolution. Factory setting. DisplayPort 1.2 setting with 3840 x 2160 (60 Hz) Maximum resolution. *: BIT RATE setting is available when DP VER is selected "1.2". 5. Press MENU to close the OSD menu. 6. Turn on the computer. 3840 x 2160 (60 Hz) resolution with USB-C connection If the image of 3840 x 2160 (60 Hz) is displayed with USB-C connection, please set USB2.0 in USB SETTING (see page 18). NEC has noted that some higher resolution DisplayPort signals, HDMI signals, or signals via USB-C, can occasionally become unreliable. The typical symptom is that no image is displayed or the image is corrupted. The described OSD menu option offers additional firmware processing for DisplayPort signals to optimize the native resolution support and therefore improve signal reliability. English-34