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How to Troubleshoot Video or Display Issues on Dell UP2720Q Monitor

概要: Learn how to troubleshoot and resolve display or video issues such as blank screen, black screen, screen resolution, USB devices not recognized, color calibration and more on a Dell UP2720Q monitor. ...

この記事は次に適用されます： この記事は次には適用されません： この記事は、特定の製品に関連付けられていません。 すべての製品パージョンがこの記事に記載されているわけではありません。
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Display or video issues can occur due to outdated video card (GPU) drivers, display configuration on the computer, monitor settings, hardware issue with the monitor, and so on.

Table of Contents

  1. No video displayed when the monitor is connected to a system using the USB-C cable
  2. USB devices are not detected after rebooting Precision 5510 connected to UP2720Q using the Thunderbolt 3 connection
  3. Cannot set the resolution to 3840x2160 @ 60Hz when the monitor is connected to Dell WD19 USB Type-C docking station
  4. Screen resolution not optimized when on PbP (picture by picture) mode when the monitor is connected using HDMI
  5. No Video when connecting the monitor using HDMI port (computer connected to the docking station using Thunderbolt 3, and the docking station connected to the monitor using HDMI)
  6. No video to daisy-chained P2719HC monitor after the monitor is powered off or on
  7. Color Calibration when the monitor is in portrait mode
  8. Software Development Kit (SDK) document for UP2720Q

No video displayed when the monitor is connected to a system using the USB-C cable

Dell UP2720Q monitor is shipped with a USB-C Active Thunderbolt 3 (TBT3) cable for connecting to a Thunderbolt 3 system for optimal video performance.

When this USB-C Active Thunderbolt 3 cable is connected to& a computer that only supports USB-C with DisplayPort alternate mode (USB-C over DP), the monitor will not display the video.
 

Note: For computers that only support USB-C with DisplayPort alternate mode, Dell Technologies recommends using a passive USB-C (MFDP also known as multi-function DisplayPort) cable. See the Dell UP2720Q user guide for more information about cable options.


Use the reference products mentioned below to purchase Thunderbolt 3 Passive cable.


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USB devices are not detected after rebooting Precision 5510 connected to UP2720Q using the Thunderbolt 3 connection

Disconnect, and then reconnect the Thunderbolt 3 cable to recover USB device functionality.


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Cannot set the resolution to 3840x2160 @ 60Hz when the monitor is connected to Dell WD19 USB Type-C docking station

Dell WD19 docking station supports resolutions up to 3840x2160 @ 30Hz refresh rate.


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Screen resolution not optimized when on PbP (picture by picture) mode when the monitor is connected using HDMI

Disconnect, and reconnect the HDMI cable to recover.


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No Video when connecting the monitor using HDMI port (computer connected to the docking station using Thunderbolt 3, and the docking station connected to the monitor using HDMI)

  1. Unplug the HDMI cable from the docking station.
  2. Plug the docking station Thunderbolt 3 cable to the computer.
  3. Plug the HDMI cable after 7 seconds.

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No video to daisy-chained P2719HC monitor after the monitor is powered off or on

When P2719HC is daisy-chained to UP2720Q using the USB-C cable, there is no video or signal after the daisy-chained monitor is powered off or on. To resolve this issue, disconnect and reconnect the USB-C cable to recover.


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Color Calibration when the monitor is in portrait mode

Note: Color calibration using the monitor's integrated colorimeter when the monitor is in portrait mode (vertical) is not recommended. Always calibrate when the monitor is in landscape mode (horizontal).

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Software Development Kit (SDK) document for UP2720Q

Note: SDK document for Dell UP2720Q monitor is available for download at UP2720Q Monitor - SDK Application.
 
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その他の情報

SLN128890_en_US__43Monitors More information and support for your Dell monitor, desktop, laptop, or tablet screen can be found on our Monitor Support site.

Out of Warranty support Out of warranty? No problem. Visit the Dell.com/support website and enter your Dell Service Tag and view our offers.

NOTE: Currently, offers are only available for US, Canada, UK, and France PC customers. Server and Storage not applicable.

対象製品

Dell UP2720Q
文書のプロパティ
文書番号: 000123851
文書の種類: How To
最終更新: 26 9月 2024
バージョン:  8
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