Chapter 3. Reference Information 3-3
Table3-2.Troubleshooting(continued)
Problem
Possible cause
Suggested action
Reference
Screen is blank
and power
indicator is
steady amber
or flashing
green
The monitor is in
Standby/Suspend
mode
●
Press any key on the
keyboard or move the
mouse to restore
operation.
●
Check the Power options
settings on your
computer.
“Understanding power
management” on page
2-6
The power
indicator is
green, but
there is no
image.
The video signal
cable is loose or
disconnected from
the system or
monitor.
Be sure the video cable is
connected with the system
properly.
“Connecting and turning
on your monitor” on
page 1-3
The monitor
brightness and
contrast are at the
lowest setting.
Adjust the brightness and
contrast setting on the OSD
menu.
“Adjusting your monitor
image” on page 2-3
One or more
of the pixels
appear
discoloured
This is a
characteristic of the
LCD technology
and is not an LCD
defect.
If there are more than five
pixels missing, contact the
Customer Support Centre.
Appendix A, “Service
and Support,” on page
A-1
●
Fuzzy lines
in text or a
blurry image.
●
Horizontal
or vertical
lines through
the image.
●
Image setup has
not been
optimized
●
Your system
Display
Properties setting
have not been
optimized.
Adjust the resolution
settings on your system to
match the native resolution
for this monitor: 1920x1080
at 60 Hz.
“Adjusting your monitor
image” on page 2-3
“Manual image setup”
Perform automatic image
setup. If automatic image
setup does not help,
perform manual image
setup.
“Selecting a supported
display mode” on page
2-6
When working in the native
resolution, you may find
additional improvements by
adjusting the Dots Per Inch
(DPI) setting on your
system.
See the Advanced section
of your system’s display
properties.
The image is
not acceptable
when
switching to
dual mode
It has not set the
optimum
resolution for each
mode
●
Use ThinkVision Duo
software to optimize the
dual screen operation
●
Adjust graphic card
resolution manually
“Using the direct access
controls” on page 2-3
Manual image setup
If automatic image setup does not establish the image that you prefer, perform
manual image setup.
Note:
Have your monitor powered on for about 15 minutes, until the monitor warms up.
1.Press
at the bottom of the monitor to open the OSD menu.
2.Use
or to select
and press to access.
3.Use
or
to select Clock and Phase adjustment.
●
Clock
(pixel frequency) adjusts the number of pixels scanned by one Horizontal
sweep. If the frequency is not correct, the screen shows vertical Stripes and the
Summary of Contents for ThinkVision LI2215s
Page 1: ...Lenovo LI2215s User Guide ...
