Quadrox QGuard Installation Manual - Manual (Page 71)

GuardNVR Installation Manual 71
Version 4.4 Series
A black image is shown
•
DirectX not installed or outdated
Check by Start > Run, type “dxdiag”. The DirectX version
should be at least 9.0c
o Download and install the latest DirectX version
from http://microsoft.com/directx
•
Video drivers of the client computer are outdated
o Download the latest video drivers from the
website of the client computer manufacturer
•
Firewall blocks image transfer
o Check whether all firewalls (server and client
side) are correctly configured.
No grid is displayed in
the
activity detection
screen.
•
Video card has less than 16 MB of video memory.
Go to the Display settings, go to the Settings tab, click
Advanced. A new window appears, click the Adapter tab. Check
that Memory Size is at least 16 MB.
•
DirectX 9.0c or higher is missing
o Download and install the latest DirectX version
from http://microsoft.com/directx
•
Not enough hardware acceleration
o See the section on client configuration
Very bad image quality
(image shows big planes
of the same color)
•
The color depth in the display settings isn't set to 24 or
32 bits
o Change the color depth to 24(32) bits instead of
16 bits in the display properties. Right click on the Desktop,
choose Properties. Go to the Settings tab, and set the color depth
to 24(32) bits.
•
Wrong combination of graphics controllers and/or
drivers
o Contact Quadrox support
PTZ supporting camera
doesn't have PTZ
•
Problem with camera configuration (source numbering)
o Delete all IP devices. Add them again using the
Camera Wizard. Make sure to add the cameras per brand and
per type, not alternating different brands or types!