–The display device driver is installed correctly.

–The screen resolution and color quality are correctly set.

–The monitor type is correct.

To check these settings, do the following:

1.Right-click anywhere on the desktop, and click Screen resolution.

2.Click Advanced Settings.

3.Click the Adapter tab to ensure that the correct device driver name is shown in the Adapter Information window. Then click the Properties button. If you are prompted for an administrator password or confirmation, type the password or provide confirmation. Check the Device status box and make sure that the device is working correctly. If the device is not working correctly, click the Troubleshoot button and follow the instructions on the screen.

Note: The device driver name depends on the video chip that has been installed on your computer.

4.Click the Monitor tab to ensure that the correct monitor type is shown in the Monitor Type window. Then click the Properties button. If you are prompted for an administrator password or confirmation, type the password or provide confirmation. Check the Device status box and make sure that the device is working correctly. If the device is not working correctly, click the Troubleshoot button and follow the instructions on the screen.

Note: The device driver name depends on the video chip that has been installed on your computer.

5.Click the Colour Management tab, and then click the Colour Management button. In the displayed Colour Management window, click the Advanced tab and ensure that the settings in the Windows Colour System Defaults area are set as desired. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

•Problem: Incorrect characters are displayed on the screen.

Solution: Did you install the operating system or application program correctly? If they are installed and configured correctly, have the computer serviced.

•Problem: The screen stays on even after you turn off your computer.

Solution: Press and hold the power button for four seconds or more to turn off your computer; then turn it on again.

•Problem: Missing, discolored, or bright dots appear on the screen every time you turn on your computer.

Solution: This is an intrinsic characteristic of the TFT technology. Your computer display contains multiple thin-film transistors (TFTs). A small number of missing, discolored, or bright dots on the screen might exist all the time.

External monitor problems

•Problem: The external monitor is blank.

Solution: To bring up the image, press F7 and select the desired monitor. If the problem persists, do the following:

1.Connect the external monitor to another computer to ensure that it works.

2.Reconnect the external monitor to your computer.

3.Refer to the manual shipped with the external monitor to check the resolutions and refresh rates that are supported.

–If the external monitor supports the same resolution as the computer display or a higher resolution, view output on the external monitor or on both the external monitor and the computer display.

Chapter 10. Troubleshooting computer problems 115

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Lenovo S540 manual External monitor problems, Click Advanced Settings
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S540 specifications

The Lenovo S540 is a sophisticated laptop designed for both performance and portability, making it an excellent choice for professionals and students alike. This device showcases a blend of modern aesthetics and powerful functionality, representing a notable entry in Lenovo's versatile lineup.

At the heart of the Lenovo S540 lies an Intel Core processor, available in multiple configurations, enabling users to select the level of performance that best suits their needs. These processors deliver exceptional speed and responsiveness, allowing users to seamlessly handle demanding tasks such as video editing, graphic design, or multitasking across various applications.

One of the standout features of the S540 is its stunning display. The laptop offers a Full HD display with vibrant colors and sharp details, whether you are watching movies, editing photos, or simply browsing the web. The narrow bezels around the screen enhance the viewing experience, making it an immersive option for both work and entertainment.

In terms of design, the Lenovo S540 boasts a sleek and lightweight chassis, making it ideal for on-the-go usage. Weighing in at just over 3.5 pounds, it easily fits into backpacks or briefcases, perfect for commuters or students moving between classes. The premium build quality ensures that it not only looks good but can also withstand daily wear and tear.

Battery life is another highlight, with the S540 offering impressive longevity that can last up to 12 hours on a single charge. This capability is crucial for users who may not have immediate access to a power source while out and about. Furthermore, it features rapid charge technology allowing users to recharge the battery quickly when needed.

Connectivity options on the S540 are generous, including USB-C, USB 3.1, HDMI, and a headphone/microphone combo jack. These ports facilitate easy connection to a variety of devices and peripherals, enhancing the overall usability of the laptop.

The Lenovo S540 also makes considerable use of modern technologies such as Intelligent Cooling, which adjusts performance and efficiency based on usage patterns, and TrueBlock Privacy Shutter, providing users with physical protection for the webcam when not in use.

With its balance of style, performance, and innovative features, the Lenovo S540 stands out as a formidable option in the competitive landscape of ultrabooks, making it a prime choice for anyone in need of a reliable and capable laptop.
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