The key features of the Dell S2721QSA monitor are:
This section provides some technical specifications of the Dell S2721QSA monitor. For more information, see the user manual of the Dell S2721QSA monitor.
Ports and connectors |
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For the best viewing experience, assemble the monitor stand, connect and organize the cables, and set up the monitor ergonomically.
The standard monitor stand is detached when the monitor is shipped from the factory. To learn how to attach the standard monitor stand, see the user manual of the Dell S2721QSA monitor.
To learn how to set up any other monitor stand or monitor arm, see the setup guide of the product.
Where you put your monitor is almost as important as what model you buy.
To connect your Dell S2721QSA monitor to your computer:
For additional product-specific information, see the user manual of the Dell S2721QSA monitor.
Dell S2721QSA monitor orientation must always be in landscape mode. This includes any wall-mounted monitors, monitors on a stand, or a monitor arm. In a multiple monitor setup, Dell S2721QSA should not be rotated either to 180° (landscape) or 90° (portrait).
When setting up your Dell S2721QSA monitor, ensure that the monitor front panel buttons are at the bottom right.
With the stand that is attached to the monitor, you can tilt and swivel the monitor for the most comfortable viewing angle.
Figure 1: Using Tilt and Swivel on Dell S2721QSA monitor.
When mounted on the wall or on a monitor arm, the setup must comply with the recommended panel orientation and working angle.
Figure 2: Orientation of Dell S2721QSA.
Figure 3: Rotate of Dell S2721QSA
Use the buttons on the monitor to access the on-screen display (OSD) menu of the monitor. To access the on-screen display (OSD) menu, press Button 3 (Figure 4) at the bottom of the monitor.
To learn more about navigating through the on-screen display (OSD) menu, see the user manual of the Dell S2721QSA monitor.
Figure 4: Dell S2721QSA front panel buttons.
Button | Function | Description |
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Button 1 | Shortcut key/Preset Modes | Use this button to choose from a list of preset color modes. |
Button 2 | Shortcut key/Volume | To directly access the Volume adjustment slider. |
Button 3 | Menu | Use the MENU button to launch the On-Screen Display (OSD). |
Button 4 | Exit | Use this button to exit the OSD main menu. |
Button 5 | Power (with power light indicator) | To turn the monitor on or off. Solid white light indicates that the monitor is turned on and functioning normally. Blinking white light indicates that the monitor is in Standby Mode. |
Resetting a monitor to factory defaults can help resolve many video or display-related issues. To reset your Dell S2721QSA monitor to factory default settings:
Figure 5: Dell S2721QSA Factory Reset
If the Dell monitor has a blank screen, blurry image, flickering, or other screen abnormalities, running a diagnostic test helps determine if the Dell monitor is functioning normally.
If you are experiencing any of the following symptoms, verify that the monitor is working correctly by running a diagnostic test.
Your Dell S2721QSA monitor provides a self-test feature check that allows you to check if the monitor is functioning properly. If the monitor and computer are properly connected but the monitor screen remains dark, run the monitor self-test by following these steps:
If the monitor screen remains blank after you use the above procedure, check your video card (GPU) and computer, because your monitor is functioning properly.
Your Dell S2721QSA monitor has an integrated diagnostic tool. It helps to determine if the screen abnormality you are experiencing is a problem with the monitor or with the video card on your computer.
If you notice any screen abnormalities, it is a good practice to isolate the monitor by running the built-in diagnostics (BID).
If you do not detect any screen abnormalities in the diagnostics test, the monitor is functioning properly. Check the video card (GPU) and the computer.
If you notice any abnormalities in the diagnostics test, contact Dell Technical Support for repair options.
During the LCD manufacturing process, it is not uncommon for one or more pixels to become fixed in an unchanging state. Such pixel issues are hard to see and do not affect the display quality or usability. Learn more about Dell LCD Monitor Pixel Guidelines.
The following table contains information about troubleshooting common display-related issues on your Dell S2721QSA monitor.
Alternatively, learn How to Troubleshoot Display or Video Issues on a Dell Monitor or check our Dell monitor self-help guide.
Common Problem | What User Experiences | Possible Solution |
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No Video - Power LED Off | No picture. |
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No Video - Power LED On | No picture or no brightness. |
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Poor Focus | Picture is fuzzy, blurry, or ghosting. |
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Shaky or Jittery Video | Wavy picture or fine movement. |
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Missing Pixels | LCD screen has spots. |
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Stuck On/Off Pixels | LCD screen has bright spot. |
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Brightness Problems | Picture too dim or too bright. |
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Geometric Distortion | Screen not centered correctly. |
NOTE: When using DisplayPort input, the positioning adjustments are not available.
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Horizontal or Vertical Lines | Screen has one or more lines. |
NOTE: When using DisplayPort input, the positioning adjustments are not available.
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Synchronization Problems | Screen is scrambled or appears torn. |
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Safety-Related Issues | Visible signs of smoke or sparks. |
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Intermittent Problems | Monitor malfunctions on and off. |
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Missing Color | Picture does not have color. |
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Wrong Color | Picture color is not good. |
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Image Retention from a Static Image Left on the Monitor for a Long Period | Faint shadow from the static image appears on the screen. |
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Screen image is too small. | Image is centered on screen, but does not fill entire viewing area. |
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Image Ghosting | Fast moving images leave a trail of shadow images. | On certain videos and applications with fast-moving images, imaging ghosting, which appears as a trailing shadow, may occur. Change the Response Time to Fast using the On-Screen Display (OSD) menu. |
No Input Signal when user controls are pressed. | No picture, the power LED light is white. |
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The picture does not fill the entire screen. | The picture cannot fill the height or width of the screen. |
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Monitor has sound icon when Dell S2721QSA is connected to a laptop using HDMI. | Dell S2721QSA does not support audio or sound using HDMI. Speakers or headphones must be connected using the audio connector on the computer. |
To resolve the audio icon displaying, update the video or graphics (GPU) driver to the latest version. Learn How to Download and Install Dell Drivers. |
The following table contains information about troubleshooting USB issues on your Dell S2721QSA monitor.
Troubleshooting USB Issues | ||
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Specific Symptoms | What User Experiences | Possible Solution |
USB interface is not working. | USB devices are not working. |
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High-Speed USB 3.0 interface is slow. | High-Speed USB 3.0 devices working slowly or not working at all |
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Wireless USB devices stop working when a USB 3.0 device is plugged in. | Wireless USB devices responding slowly or only working as the distance between itself and its receiver decreases. |
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USB-C port does not supply power. | USB devices cannot be charged. |
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USB ports on the monitor do not work when the monitor is connected to a computer using USB-C. | If the monitor is powered-off and powered-on too quickly, the laptop will not recognize the system change. |
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Monitor does not wake up using the USB keyboard or mouse that is connected to the monitor. | In sleep mode, the monitor does not receive power to the USB 3.0 ports. | Wake up the laptop using the built-in keyboard or touchpad |
Learn how to view or download the Manuals and Documentation for your Dell Product.
For more information, click to expand a section below.
In Windows 8 or 8.1, and Windows 7:
In Windows 10 and Windows 11:
To change the resolution using the Nvidia Control Panel:
To change the resolution using the AMD Catalyst Control Center:
Go to the reset to the Dell S2721QSA monitor to factory settings section of this article or see the user manual of the Dell S2721QSA monitor.
The Dell S2721QSA monitor has two built-in diagnostics that are available:
Self-Test Feature Check - The self-test feature check on the Dell S2721QSA monitor allows you to check whether the monitor is functioning properly.
Built-In Self-Test - The Dell S2721QSA monitor has a built-in self-test that helps you identify if the screen abnormality is with the monitor or the video card (GPU) on your computer. When you notice screen abnormalities such as distortion, clarity, horizontal or vertical lines, color fade. It is always a good practice to isolate the monitor by running the built-in diagnostics.
Learn how to run a diagnostic test on the Dell S2721QSA monitor.
The troubleshooting section of this article provides information about troubleshooting common issues with your Dell S2721QSA monitor.
This section has troubleshooting steps on how to resolve power issues, video issues, color or clarity issues, distortion issues, horizontal or vertical lines, brightness issues or pixel issues, and so on.
Learn how to access the on-screen display (OSD) menu on the Dell S2721QSA monitor. For additional product-specific information, see the user manual of the Dell S2721QSA monitor.
Information about the monitor such as the model number, firmware version, and Service Tag can be accessed using the on-screen display (OSD) menu of the monitor.
Learn how to access the on-screen display (OSD) menu on the Dell S2721QSA monitor. For additional product-specific information, see the user manual of the Dell S2721QSA monitor.
For information about the supported orientation to set up the Dell S2721QSA monitor, see the monitor orientation section of this article.