Lenovo ThinkVision Pro2820 28 inch FHD MVA LED Backlit LCD Monitor - Manual (Page 22)

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 1-4
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 picture does not have
the correct width.