Lenovo Q24h-10 User Manual page 25

Table3-2.Troubleshooting (continued)
Problem
Screen is blank and power indicator
is steady amber or flashing white
The power indicator is white, but
there is no image.
One or more of the pixels appear
discoloured
● Fuzzy lines in text or a blurry
image.
● Horizontal or vertical lines
through the image.
The image is not acceptable when
switching to dual mode
Possible cause Suggested action
The monitor is in ● Press any key on the
Standby/Suspend keyboard or move
mode the mouse to restore
operation.
● Check the Power
options settings on
your computer.
The video signal Be sure the video cable
cable is loose or is connected with the
disconnected from system properly.
the system or
monitor.
The monitor Adjust the brightness
brightness and and contrast setting on
contrast are at the the OSD menu.
lowest setting.
This is a If there are more than
characteristic of the five pixels missing,
LCD technology contact the Customer
and is not an LCD Support Centre.
defect.
● Your system
Adjust the resolution
Display Properties
settings on your system
setting have not
to match the native
been optimized.
resolution for this
monitor: 2560x1440 at
60 Hz.
When working in the
native resolution, you
may find additional
improvements by
adjusting the Dots Per
Inch (DPI) setting on
your system.
It has not set the ● Use ThinkVision Duo
optimum resolution software to optimize
for each mode the dual screen
operation
● Adjust graphic card
resolution manually
Reference
"Understanding
power management"
on page
2-8
"Connecting and
turning
on your monitor" on
page 1-3
"Adjusting your
monitor image" on
page 2-3
Appendix A, "Service
and Support," on page
A-1
"Adjusting your
monitor image" on
page 2-3
"Manual image setup"
on page 3-3
See the Advanced
section
of your system's
display properties.
"Using the direct
access controls" on
page 2-3
Chapter 3. 3-3