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SN22A1 50
Troubleshooting
Display problems
Symptom Possible solution
There is nothing visi-
ble on the screen.
• Check the power cable and power adapter are well connected.
• Check the Power button indicator.
- If the indicator does not light up, your computer is not being
supplied power from an external power source via the power
adapter. Check the connection between your computer, the
power adapter, and the nearby outlet.
- If the indicator flashes in blue, your computer has entered
Sleep mode. Move your mouse or click any button on the key-
board to wake the system.
- If the Power button indicator lights up in blue, the computer is
being supplied normally with power. Reconnect the power
adapter and restart the system.
• Check if the LCD display power indicator stays in blue.
- If the indicator flashes white, your monitor has entered Sleep
mode. Press the Power button on the front panel to turn on
the screen.
• Check if the brightness level of the display is adjusted
correctly, and is not set too low or too high. Use the
Brightness control by pressing the Brightness/Increase or
Decrease buttons on the front panel to adjust the brightness
level.
The images on the
screen are too large or
too small, or the
images are blurred.
• Press the Auto-adjust button on the front panel of the
computer.
• Check if the monitor is running at its native resolution.
- Right-click the desktop, and then select Screen Resolution.
In the opened window, set the Resolution to 1920 x 1080,
and then click Apply and OK to complete the settings.
The images on the
screen are too bright
or too dark.
• Press the Auto-adjust button on the front panel of the
computer.
• Check if the brightness level of the display is adjusted
correctly, and is not set too low or too high. Use the
Brightness control by pressing the Brightness/Increase or
Decrease buttons on the front panel to adjust the brightness
level.