7. Troubleshooting

Frequently asked questions (FAQ)

The image is blurred:

Read the instructions on the link "Adjusting the Screen Resolution" on the CD, and then select the correct resolution, refresh rate and make adjustments based on these instructions.

How do you use a VGA extension cable?

Remove the extension cable for the test. Is the image now in focus? If not, optimize the image by working through the instructions in the "Adjusting the refresh rate" section on the link "Adjusting the Screen Resolution". It is normal for blurring to occur due to conduction losses in extension cables. You can minimize these losses by using an extension cable with better conduction quality or with a built-in booster.

Does the blurring only occur at resolutions lower than the native (maximum) resolution?

Read the instructions on the link "Adjusting the Screen Resolution" on the CD. Select the native resolution.

Pixel errors can be seen:

One of several pixels is permanently black, one or more pixels are permanently white, one or more pixels are permanently red, green, blue or another color.

•Clean the LCD screen.

•Cycle power on-off.

•These are pixels that are permanently on or off and is a natural defect that occurs in LCD technology.

The image has a faulty coloration:

It has a yellow, blue or pink appearance.

Select MENU > PICTURE > Color > Reset Color, and then choose “YES” in the “Caution” message box to reset the color settings to the factory defaults.

If the image is still not correct and the OSD also has faulty coloration, this means one of the three primary colors is missing in the signal input. Now check the signal cable connectors. If any pin is bent or broken off, please contact your dealer to get necessary support.

No image can be seen:

Is the prompt on the display illuminated in green?

If the LED is illuminated in green and there is a message “Out of Range” on the screen, this means you are using a display mode that this monitor does not support, please change the setting to one of the supported mode. Please read the “Preset display modes” section from the link "Adjusting the Screen Resolution".

Faint shadow from the static image displayed is visible on the screen:

• Activate the power management function to let your computer and monitor go into a low power "sleep" mode when not actively in use.

•Use a screensaver to prevent the occurrence of image retention.

32 Troubleshooting

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BenQ GL940A, GL941A, GL2040A, GL2440, GL2240A user manual Troubleshooting, Frequently asked questions FAQ
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GL2240A, GL940, GL2240, GL940A, GL2040A specifications

The BenQ GL series, which includes models such as GL941, GL2040, GL2440, GL941A, and GL2040A, is designed to deliver a range of options catering to both professional and casual users. Each monitor in this series aims to provide a comfortable viewing experience while showcasing impressive technological features.

The BenQ GL941 is an affordable 19-inch monitor that boasts a 5ms response time, ensuring minimal motion blur during fast-paced activities like gaming or watching videos. With a native resolution of 1280x1024, it delivers sharp and vibrant images. The monitor is equipped with BenQ’s proprietary Senseye technology, which enhances image quality by optimizing colors and contrasts based on viewing scenarios.

The GL2040 steps up with a larger 20-inch display, offering a resolution of 1600x900. With the same 5ms response time, this model is particularly suitable for multi-tasking and professional applications. Its eco-friendly LED backlight not only reduces energy consumption but also extends the monitor's lifespan. Additionally, the GL2040 supports a wide viewing angle, ensuring that color accuracy is maintained even when viewed from the sides.

Next in line, the GL2440 features an expansive 24-inch screen, achieving full HD 1920x1080 resolution. This model enhances the multimedia experience, making it a great option for gamers and content creators. Like its predecessors, it incorporates the Senseye technology and a 5ms response time, ensuring smooth visuals. Its slim design and refined aesthetics also add to its appeal in modern workspace settings.

The GL941A and GL2040A models are designed with some added convenience features. The GL941A offers similar specifications to the GL941 but includes a VESA mount option for users who wish to customize their setups. Meanwhile, the GL2040A maintains the GL2040's features while adding an integrated cable management system, promoting a clutter-free workspace.

Overall, the BenQ GL series provides a diverse range of monitors that cater to various needs, balancing performance, energy efficiency, and user comfort. With shared technologies such as Senseye, 5ms response times, and eco-friendly designs, the GL series stands out as a reliable choice for both home and office environments. Each model in this lineup presents a worthwhile investment for users seeking visual clarity and ergonomic benefits.
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