Lenovo ThinkVision M14 14" 16:9 Portable IPS/LCD Monitor - Manual (Page 19)

Table3-2.Troubleshooting (continued)
Problem Possible cause Suggested action Reference
Screen is blank and power
indicator is steady amber
or flashing white
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
2-5
The power indicator is
white, 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 power indicator is
white, but there is no
image.
The monitor brightness is
at the lowest setting.
Adjust the brightness setting on
the Brightness control.
“Adjusting your monitor
image” on page 2-4
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:
1920 x 1080 at 60 Hz.
“Selecting a supported
display mode”
on page 2-4
● 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.
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.
• Monitor consumes power
from notebook or phones
when connected with
adaptor
• Adaptor has no USB-C
PD function
Use USB C to C adaptor
connecting with M14 and
charging your notebook or
phone.
“Understanding power
management” on page
2-5
• M14 can’t be powered on
by notebooks or phones
• USB C ports of
notebooks or phones
can’t support power
output or Alt-mode.
• Notebooks or phones
have no enough power
to support M14.
• Check the USB C ports of
notebooks or phones and make
sure they support PD 2.0 and DP
1.2 Alt mode.
• Connect notebook with adaptor
then power on M14.
“Connecting and turning
on your monitor” on
page 1-4 and
“Understanding power
management” on page
2-5
• Normally display when
M14 connecting with 45W
power adapter and
notebook, but no charging
symbol showing in
notebook
• Power input of
notebook must be 45w
or above, M14 can’t
provide enough power
for notebook.
• You can connect the adapter and
M14 with notebook, then
notebook can be charged by
adaptor and can power on M14.
• Use 65W or above adaptor to
connect with M14, and then
charge notebook.
“Understanding power
management” on page
2-5
Chapter 3.Reference information 3-3