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3-4 T22i-20 Flat Panel Monitor User's Guide
Table3-2.Troubleshooting(continued)
Problem
Screen is blank
The monitor is in
and power
Standby/Suspend
indicator is
mode
steady amber or
flashing white
The power
The video signal
indicator is
cable is loose or
white, but there
disconnected from
is no image.
the system or
monitor.
The power
The monitor
indicator is
brightness and
white, but there
contrast are at the
is no image.
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 image.
● Your system
● Horizontal or
vertical lines
through the
image.
● Fuzzy lines in
● Image setup has
text or a
blurry image.
● Your system
● Horizontal or
vertical lines
through the
image.
● Fuzzy lines in
● Image setup has
text or a
blurry image.
● Your system
● Horizontal or
vertical lines
through the
image.
The image is not
It has not set the
acceptable when
optimum resolution
switching to
for each mode
dual mode
Possible cause
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
not been
settings on your system
optimized
to match the native
resolution for this
monitor:
Display
Properties setting
1920 x 1080 at 60 Hz.
have not been
optimized.
Perform automatic image
not been
setup. If automatic image
optimized
setup does not help,
perform manual image
setup.
Display
Properties setting
have not been
optimized.
When working in the
not been
native resolution, you
optimized
may find additional
improvements by
adjusting the Dots Per
Display
Inch (DPI) setting on
Properties setting
your system.
have not been
optimized.
● Use ThinkVision Duo
software to optimize
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 1-4
"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
"Selecting a supported
display mode" on page
2-7
See the Advanced section
of your system's display
properties.
"Using the direct access
controls" on page 2-3