The VGA IPEPS products are designed to handle the inherent noisiness of the signal better, whereas the digital versions are not. Analogue video is a noisy video format, if you try to convert VGA to DVI and then use a digital version like the ALD-IPEPS then this will create lots of unwanted network traffic. then use the AL-IPEPS or AL-IPEPS-DA, however, if you have a DVI or HDMI output then use an ALD-IPEPS or IPEPS-PLUS. It may be possible to disable dithering on the graphics card, please contact the graphics card vendor for instructions.Īs a general rule of thumb, always choose a VNC product that matches the host's video output type and do not use video conversion. Dithering is a technic used by older graphics cards to make it look like they support more colours than they really do, by constantly changing the pixels on the screen to trick the eye. If the percentage is not 0% (or very close too) with an inactive screen, then you have either video noise which is typically seen on analogue, or the graphics card you are using is employing dithering. If you go to the Video Settings page on the VNC Viewer (Controls -> Video Settings), you can typically see a Display Activity percentage. Video noise will cause all of the screen to be transmitted rather than only those parts that are changing. The VNC engine is designed to send over all the changes that are occurring on the screen. Other factors such as video noise and dithering can cause the bandwidth to be higher than usual, even when the host's video output is inactive. Try lowering the Colour Level and choose fewer colours.The default is Auto select which is chosen based on network speed. There are three options, ZRLE, Hextile and Raw. In the Options dialog window, go to the Colour/Encoding tab.Try lowering the ColorLevel setting and choose fewer colours.įor products such as the ALIF2112T, ALIP-GOLD, AL-IPEPS, AL-IPEPS-DA, ALDIPEPS and CATxIP switches.Try lowering the Video Quality setting.You will be presented with a list of advanced options.In the Properties dialog window, go to the Expert tab.Set Server Preferred Encoding to JPEG (Default).In the Configuration menu, choose Unit Configuration.Click on the Configure button in the top right corner.Make sure you have set JPEG as the Server Preferred Encoding.Changing the remote hosts desktop resolution will help too. Lowering the picture quality and colour depth will reduce the amount of network bandwidth required. To lower the latency, there are a few things that you can do. How do I improve the latency if my bandwidth is low “C:\Program Files\VNC\vncviewer.exe" -config "c:\temp\test.vnc" Under the Shortcut tab, add the following command line option to the end of the Target file information: -config.Right mouse click on the shortcut and select properties.Create a VNCViewer shortcut on your desktop. A VNC Viewer: Warning window will appear asking if you want to include the VNC Password in the configuration file Click Yes if you want to save it.vnc file as whatever name you like and put it where ever you want. Click the Load / Save tab on the VNC Viewer Options.Make any changes that you want to be used as the default for the server/host you are connecting to.Right Click Top of VNCViewer Window and select Options.Enter the server you want to connect to.First you need to create the config file.The VNC viewer allows you to save your current connected session, including the username and password that you used to login. The following instructions work with Real VNC VIewers (below version 6).
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