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HUAWEI VP9050 Executive Video Terminal
User Guide
13 Maintenance and Troubleshooting
Issue 03 (2011-12-10) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd
95
Problem Possible Cause Solution
After the local site
joins a conference,
the remote video
can be displayed
continuously but the
video quality is not
satisfactory.
Contact and ask the
administrator of the remote
site to perform a local video
loopback test. If the video
quality is good, it indicates
that the video frame rate set at
the remote site is too high.
Contact and ask the administrator
of the remote site to disconnect
from the conference, reduce the
video frame rate, and then join the
conference again.
When the local site
is not in a
conference, the
local video is too
bright or too dark.
The video settings of the
terminal are incorrect.
Set the video parameters of the
terminal and the display to default
values.
The video settings of the
display are incorrect.
Set the video parameters of the
terminal and the display to default
values. If the problem persists,
change the settings as follows: If
the video is still too bright, set
Room light to Bright. If the video
is too dark, set Room light to
Dark.
The camera is faulty.
Send the camera to the camera
distributor for maintenance.
After the local site
joins a conference
and a remote site
shares its computer
desktop, the VGA
display at the local
site cannot display
the computer
desktop of the
remote site.
The resolution of the computer
that is used for the VGA input
at the remote site exceeds the
maximum resolution
supported by the local
terminal.
Contact and ask the administrator
of the remote site to change the
resolution and refresh rate of the
computer that is used for the VGA
input to a combination of the
values supported by the local
terminal.
The local VGA display is not
supported.
Replace the VGA display.
A computer is
connected to the
local terminal but
the local VGA
display does not
show the computer
desktop.
The capability of the VGA
display is limited. The
resolution or refresh rate of the
local SXGA output is too high
to be supported by the VGA
display.
Set the resolution and refresh rate
of the local SXGA output interface
to a combination of the values
supported by the VGA display.
The local terminal supports
only certain combinations of
resolutions and refresh rates.
The combination of the
resolution and refresh rate set
on the computer that is used
for the VGA input, however,
is not supported by the
terminal. Therefore, the local
site cannot display or properly
display the remote computer
desktop.
Set the resolution and refresh rate
of the computer used for VGA
input to a combination of the
values supported by the terminal.