Axis Communications AXIS Q1755-E - Manual (Page 46)

46
AXIS Q1755/-E - Troubleshooting
Poor rendering of H.264 images Color depth set incorrectly on clients. Set to 16-bit or 32-bit color.
If text overlays are blurred, or if there are other rendering problems, you may
need to enable Advanced Video Rendering from the H.264 tab in the AMC con-
trol panel applet.
Ensure that your graphics card is using the latest device driver. The latest drivers
can usually be downloaded from the manufacturer's web site.
Color saturation is different in H.264
and Motion JPEG Modify the settings for your graphics adapter. Please see the adapter's documen-
tation for more information.
Lower frame rate than expected Reduce number of applications running on the client computer.
Limit the number of simultaneous viewers.
Check with the system administrator that there is enough bandwidth available.
See also the online help.
Check in the AMC control panel applet (H.264 tab) that video processing is not
set to
Decode only I frames.
Lower the image resolution.
Why do I not get 30 frames per sec-
ond? See the section General performance considerations, on page 51 .
Image degeneration Decrease the GOV length, see the online help for more information.
The Power indicator is not constantly lit
Faulty power supply Check that you are using an AXIS PS-P power supply.
The Status and Network indicator LEDs are flashing red rapidly
Hardware failure Contact your Axis dealer.
The Status indicator LED is flashing red and the camera is inaccessible
A firmware upgrade has been inter-
rupted or the firmware has otherwise
been damaged See the Emergency Recovery Procedure above.
No images displayed on web page
Problem with AMC.
(
Internet Explorer only )
To enable the updating of video images in Microsoft Internet Explorer, set your
browser to allow ActiveX controls. Also, make sure that AXIS Media Control
(AMC) component is installed on your workstation.
Installation of additional ActiveX
component restricted or prohibited Configure your camera to use a Java applet for updating the video images under
Live View Config > Layout > Default Viewer for Internet Explorer. See the
online help for more information.
Video/Image problems, general
Image too dark or too light Check the video image settings. See the online help on Video and Image Settings.
Missing images in uploads This can occur when trying to use a larger image buffer than is actually available.
Try lowering the frame rate or the upload period.
Slow image update Configuring pre-buffers, motion detection, high-resolution images, or high frame
rates, will affect the performance of the camera.
Poor performance Poor performance may be caused by heavy network traffic, multiple users
accessing the unit, low performance clients, use of features such as Motion
Detection, Event handling, Image rotation other than 180 degrees.
Poor quality snapshot images
Screen incorrectly configured on your
workstation In Display Properties, configure your screen to show at least 65000 colors, that
is, at least 16-bit. Using only 16 or 256 colors will produce dithering artifacts in
the image.
Overlay/Privacy mask is not displayed
Incorrect size or location of overlay or
privacy mask. The overlay or privacy mask may have been positioned incorrectly or may be too
large. Refer to
Overlay Image Requirements and Limitations in the online help
for more information.
Browser freezes
Netscape 7.x or Mozilla 1.4 (or later)
can sometimes freeze on a slow com-
puter Lower the image resolution.