U3818DW Monitor Troubleshooting Guide

U3818DW Monitor Troubleshooting Guide





Follow the guidelines provided below to troubleshoot the Dell U3818DW LCD monitor.


Table of Contents:

  1. How to Achieve the max resolution of 3840 x 1600 @ 60Hz.
  2. Light Leakage
  3. USB Type-C Charging
  4. No Image When Using USB Type-C
  5. Picture in Picture (PIP) / Picture by Picture (PBP) - How to use them
  6. PIP / PBP - No Sound from speaker
  7. USB Port Not Working
  8. Image Retention / Image Sticking
  9. Image Ghosting, Motion Blur, Image Trailing
  10. Slight color variation, especially on four corners of the screen.
  11. Running Monitor Built-In Diagnostics
  12. Checking Model Number, Firmware Version
  13. No video when using a DisplayPort (DP) connection

How to Achieve the max resolution of 3840 x 1600 @ 60Hz.

The U3818DW monitor is capable of displaying a max resolution of 3840 x 1600 @ 60Hz.

To set the maximum resolution for the monitor In Windows® 7, Windows® 8, and Windows® 8.1:

NOTE: For Windows® 8 and Windows® 8.1 only, select the Desktop tile to switch to classic desktop.
  1. Right-click on the desktop and click Screen Resolution.
  2. Click the Dropdown list of the Screen Resolution and select 3840 x 1600.
  3. Click OK.

In Windows® 10:

  1. Right-click on the desktop and click Display settings.
  2. Click Advanced display settings.
  3. Click the dropdown list of Resolution and select 3840 x 1600.
  4. Click Apply.
NOTE: If you do not see 3840 x 1600 as an option:
  1. Check you graphics driver. Ensure you have the latest graphics drivers installed.
  2. Check your HDMI setting. U3818DW ships with HDMI 2.0 as default setting. If your graphics card only supports only HDMI 1.4, 3840 x 1600 will not appear in under the resolution table. Do the following to get 3840 x 1600 on the resolution table.
    • From the Monitor OSD > Input Source
    • On your current HDMI connection (e.g. HDMI1 or HDMI2), press and hold Confirm button for 8 seconds to switch monitor from HDMI 2.0 to HDMI 1.4.

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Light Leakage.

U3818DW has a curved screen, hence optimal viewing position should be from the center of the screen.

Light leakage should not be inspected in dark room. All monitors are inspected per industry standard with 150Lux ambient lighting (similar to typical office lighting). Any visual inspection should be done in the same manner.

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USB Type-C Charging.

The USB Type-C Power Distribution for U3818DW is up to 95W (60W for Dell systems).

  1. Check that you use the USB Type-C cable that shipped with your monitor.
  2. If you are using USB Type-C connection from the monitor to charge a Dell notebook which requires higher wattage, charging time may be slow.
  3. Check that the connected device is compliant with the USB Type-C specification. The USB Type-C port supports USB 3.1 with speeds up to 10 Gbps and a power output of 95 watts (Dell systems are limited to 60 watts).
  4. Update your system BIOS and Graphics driver to the latest version.

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No Image When Using USB Type-C.

No image when using USB Type-C connection from monitor to notebook or PC.

U3818DW supports USB Type-C Alternate Mode with DP1.2.

  1. Verify if the PC or Notebook USB Type-C interface supports Alternate Mode. DP1.2. DP1.1 is not supported.
  2. Check that you use the USB Type-C cable that shipped with your monitor.
  3. Update your system BIOS and Graphics driver to the latest version.

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Picture in Picture (PIP) / Picture by Picture (PBP) - How to use them.

Picture-In-Picture (PIP) and Picture-By-Picture (PBP) is supported by U3818DW.

To use PIP/PBP:

  • Go to Monitor On-Screen Display (OSD) Menu > PIP/PBP > PIP/PBP Mode
  • PIP/PBP is supported under the connection configurations: (Figure 1.)

    Picture in Picture options
    Figure 1. - Picture in Picture options

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PIP / PBP - No Sound from speaker.

You can selected source to come from either the Main Window or Sub-Window.

Ensure you have selected the correct audio source. To do this:

  1. Go to Monitor OSD Menu > PIP/PBP > Audio
    Select "Main" if your audio source is from the Main Window, or "Sub" if your audio source is from the Sub-Window.
  2. Go to Monitor OSD Menu > Audio
    Ensure Speaker is "Enable" , and that the Volume is above 30.

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USB Port Not Working.

U3818DW has a USB Selector that allows you to set the USB upstream port for the input signals (DP, HDMI 1, and HDMI 2), thus the monitor's USB downstream port (eg. keyboard and mouse) can be used by the current input signals when you connect a computer to either one of the upstream ports. If the USB Selector is not set correctly, the USB downstream ports will not work.

Ensure USB Selector is set correctly.

Go to Monitor OSD Menu > USB Selector
Ensure that your USB Upstream port is paired correctly to the input signals (DP, HDMI1, HDMI2) that you want.

NOTE:
  1. When you use only one upstream port, the connected upstream port is active.
  2. To prevent data damage or loss, before changing USB upstream ports, make sure that NO USB storage devices are in use by the computer connected to the monitor’s USB upstream port.

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Image Retention / Image Sticking.

Slight image retention may occur when a static image is displayed on the screen over extended periods of time. This is normal In-Place Switching (IPS) panel behavior.

Do one or more of the following.

  1. Always use a screen saver where possible.
  2. Run LCD Conditioning to reduce minor cases of Image Retention.
    1. Go to Monitor OSD Menu > Others > LCD Conditioning > Enable
    2. The screen will cycle through solid color screens.
    3. Let the display conditioning run for 20 minutes.

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Image Ghosting, Motion Blur, Image Trailing .

U3818DW is factory tuned to provide the best viewing performance for office and graphics productivity usage. On certain applications with fast moving images (e.g. fast moving games), imaging ghosting, which appears as a trailing shadow, may occur. (Figure 2.)

Ghosted image
Figure 2. - Ghosted image

Change the Response Time.

  1. Go to Monitor OSD Menu > Display > Response Time
  2. Switch between "Normal" or "Fast" to find the best performance for your application.

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Slight color variation, especially on four corners of the screen.

U3818DW has a curved screen, hence optimal viewing position should be from the center of the screen. Due to the screen curvature, some corners of the screen may appear slight yellowish or pinkish, especially when displaying a dark image in a dark room. This is normal monitor behavior for curved screen and typically does not affect overall viewing performance.

Turn on Uniformity Compensation

  1. Always view from the center of the screen for optimal viewing performance.
  2. Turn On Uniformity Compensation
    Go to Monitor OSD Menu > Display > Uniformity Compensation

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Running Monitor Built-In Diagnostics.

U3818DW has a built-in diagnostic tool that helps to determine if the screen abnormality you are experiencing is a problem with the monitor or with the video card on your computer.
When you notice screen abnormalities like distortion, clarity, horizontal or vertical lines, color fade etc., it is always a good practice to isolate the monitor by running the Built-In Diagnostics.

To run built-in diagnostics:

  1. Make sure that the screen is clean (no dust particles on the surface of the screen).
  2. Unplug the video cable(s) from the back of the computer or the monitor. The monitor will now enter self-test mode.
  3. On the front panel, press and hold Button 1 for 5 seconds. A gray screen appears.
  4. Carefully inspect the screen for abnormalities.
  5. Press Button 1 on the front panel again. The color of the screen changes to red.
  6. Inspect the display for any abnormalities.
  7. Repeat step 5 and step 6 to inspect the display in green, blue, black, white and text screens.
  8. The test is complete when the white screen appears.
  9. Press Button 1 to exit the Built-In Self Test diagnostics.
NOTE: If you do not detect any screen abnormalities upon using the built-in diagnostic tool, the monitor is functioning properly. Check the video card (GPU) and the computer.

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Checking Model Number, Firmware Version.

Additional monitor information can be accessed from the monitor's OSD (On Screen Display).

Press any OSD button on the monitor to access the OSD Menu.

  1. Model Number: (OSD Menu > Others > Display Info).
  2. Firmware Version: (OSD Menu > Others > Firmware).

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No video when using a DisplayPort (DP) connection

NOTE: The default out of factory setting in the U3818DW is DisplayPort 1.2 (DP1.2).

If the monitor fails to show any content after the DisplayPort cable is connected, follow the procedures below to change the settings from DP 1.2 to DP 1.1.

  1. Press the second button next to the power button to activate the On-Screen Display menu.
  2. Use the up and down selection buttons to highlight Input Source, then uses the right button to enter the submenu.
  3. Use the up and down selection button to highlight DP.
  4. Press and hole the check make button for approximately ten (10) seconds and the DP configuration message appears.
  5. Use the Check button to select Disable, and change the settings. (See Figure 3)


Figure 3. - DisplayPort 1.2 disable

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Article ID: SLN307029

Last Date Modified: 11/20/2018 08:58 AM


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