Screen problems
Problem Solution
The screen goes blank while the hub is on.
• The hub voltage matches the voltage available at the electrical
outlet for your country or region.
• Tap the screen to wake the hub.
• The brightness and contrast is set correctly.
The image appears to be flickering.
• The screen might be affected by interference from nearby
equipment. Magnetic fields around other devices, such as
transformers, appliances, fluorescent lights, and other monitors,
might be causing the problem. Move fluorescent desk lighting or
any equipment that produces magnetic fields farther away from the
screen. If the problem persists, turn off the hub. Then, adjust the
placement of the hub and other devices so that they are at least
305 mm (12 inches) apart. Turn on the hub.
• Reset the refresh rate.
1. Right-click a blank area on the desktop.
2. Click Display settings. On the Display tab, click Advanced
display settings ➙ Display adapter properties for Display 1.
3. Click the Monitor tab, and then reset the refresh rate to be the
highest and noninterlaced.
The image is discolored.
• The screen might be affected by interference from nearby
equipment. Move fluorescent desk lighting or any equipment that
produces magnetic fields farther away from the screen.
• Turn off the hub. Then, adjust the placement of the hub and other
devices so that they are at least 305 mm (12 inches) apart. Turn on
the hub.
Chapter 5. Troubleshooting, diagnostics, and recovery 39
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