ViewSonic PD1611, User Manual

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9
3. Troubleshooting
3.1 Screen problems
Problems Recommended actions
No picture * Check whether USB cables at computer end and screen
end are connected properly.
* Try to use another USB interface of the computer.
* Confirm whether the computer is under sleep mode.
Press the keyboard or move the mouse, and reboot the
system.
* Press [Screen] power button and confirm whether the
screen is starting up.
* Try to adjust the brightness.
* Confirm whether the computer is starting up
* In case of laptop, please confirm whether the outer-link
(RGB) output is selected.
* Check whether DisplayLink driver is installed.
Screen
completely
dark * Adjust the brightness control.
* Long-time operation will decrease backlight efficiency
and may affect the screen brightness.
Image noise * Other electrical devices may trigger electrical
disturbances.
Image blur * Using the original resolution of 1280 x 800 may provide
the optimum quality.