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Table 3-2. Troubleshooting (continued)
Problem
Possible cause
Screen is blank
The monitor is in
and power
Standby/Suspend
indicator is steady
mode.
amber or flashing
White.
The power
The video signal
indicator is White,
cable is loose or
but there is no
disconnected from
image.
the system or
monitor.
The monitor
brightness and
contrast are at the
lowest setting.
One or more of
This is a
the pixels appear
characteristic of the
discoloured.
LCD technology and
is not an LCD defect.
Fuzzy lines in
Image setup has
text or a blurry
not been
image.
optimized.
Horizontal or
Your system
vertical lines
Display Properties
through the
setting have not
image.
been optimized.
The image is not
It has not set the
acceptable when
optimum resolution
switching to dual
for each mode.
mode.
Suggested action
Press any key on the
keyboard or move the
mouse to restore operation.
Check the Power options
settings on your computer.
Be sure the video cable is
connected with the system
properly.
Adjust the brightness and
contrast setting on the OSD
menu.
If there are more than five
pixels missing, contact the
Customer Support Centre.
Adjust the resolution settings
on your system to match the
native resolution for this
monitor: 2560 x 1440 at 60 Hz.
Perform automatic image
setup. If automatic image
setup does not help, perform
manual image setup.
When working in the native
resolution, you may find
additional improvements by
adjusting the Dots Per Inch
(DPI) setting on your system.
Use ThinkVision Duo
software to optimize the
dual screen operation.
Adjust graphic card
resolution manually.
Reference
"Understanding power
management" on page
2-9
"Connecting and turning
on your monitor" on
page 1-3
"Adjusting your monitor
image" on page 2-6
Appendix A, "Service
and Support," on page
A-1
"Adjusting your monitor
image" on page 2-6
"Selecting a supported
display mode" on page
2-9
See the Advanced section
of your system's display
properties.
"Using the direct access
controls" on page 2-6
Reference information
Chapter 3
3-3
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