Solution: Make sure that:

–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 as follows:

For Windows 7:

1.Right-click on the desktop, and click Personalize.

2.Click Display at the left.

3.Select Change display settings. Check whether the screen resolution is correctly set.

4.Click Advanced Settings.

5.Click the Adapter tab.

6.Make sure that the correct device driver name is shown in the adapter information window.

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

7.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 the device is working properly. If not, click the Troubleshoot button. Close the Properties window.

8.Click the Monitor tab. Check whether the color quality is correctly set, make sure other information is also correct.

9.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 the device is working properly. If not, click the Troubleshoot button.

For Windows Vista:

1.Right-click on the desktop, and click Personalize.

2.Click Display Settings and check whether the screen resolution and color quality are correctly set.

3.Click Advanced Settings.

4.Click the Adapter tab.

5.Make sure that the correct device driver name is shown in the adapter information window.

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

6.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 the device is working properly. If not, click the Troubleshoot button.

7.Click the Monitor tab.

8.Make sure the information is correct.

9.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 the device is working properly. If not, click the Troubleshoot button.

For Windows XP:

1.Right-click on the desktop, and click Properties to open the Display Properties window.

2.Click the Settings tab.

3.Check whether the screen resolution and color quality are correctly set.

4.Click Advanced.

5.Click the Adapter tab.

Chapter 10. Troubleshooting computer problems 219

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Lenovo X220I TABLET, X220 TABLET, X220-4287, 42872W5, 42875TU, 4290WFZPC10D518, 42912XU, 429133U Click the Adapter tab
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4291BR6PC10B616, 42875TU, 428742U, 4294CTO, X220-4287 specifications

Lenovo's X220i, X220i Tablet, and their respective models such as 42872W5, 42912XU, and 429133U are part of the ThinkPad series, renowned for their reliability, performance, and innovative features tailored for both business and personal use. The X220i and X220i Tablet stand out in the ultrabook category, offering a perfect balance between portability and functionality, making them ideal for professionals on the go.

The X220i features a 12.5-inch display, which delivers vibrant visuals and clear text, ensuring users can work efficiently in various lighting conditions. The display options may include HD resolutions with anti-glare technology, minimizing reflections and enhancing visibility. The X220i Tablet takes portability a step further by incorporating touchscreen capabilities, allowing for a more interactive experience, which is particularly useful for presentations and drawing applications.

Under the hood, both models are powered by Intel Core processors, providing solid performance for multitasking and demanding applications. The X220i comes with options for up to 8GB of RAM, ensuring smooth operation even when handling multiple applications simultaneously. Storage options typically include fast SSDs, which not only enhance boot times but also improve file access speeds, contributing to overall responsiveness.

A key feature of the ThinkPad series is its exceptional build quality. The X220i and X220i Tablet are constructed with durable materials, including magnesium alloy and reinforced hinges, designed to withstand the rigors of daily use. Additionally, they are tested against military specifications, ensuring reliability in challenging conditions.

Connectivity options are extensive, featuring USB 3.0 ports, a VGA port, and HDMI, allowing users to connect to various peripherals and external displays. Advanced wireless connectivity options such as Wi-Fi and Bluetooth enable seamless communication and file sharing.

Battery life is another area where the X220i series excels. The laptops are designed to last an extended period on a single charge, often exceeding 8 hours, making them suitable for long workdays without the need for a power outlet.

In conclusion, the Lenovo X220i, X220i Tablet, and their variants like 42872W5, 42912XU, and 429133U are exemplary devices that blend portability, performance, and durability. Ideal for professionals and students alike, these devices cater to a range of computing needs while maintaining a compact and lightweight profile.
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