The ViBook In Use
The installation process is self-explanatory. As is often the case for USB-based hardware, you first install the software and driver, then connect the device itself to your computer. The ViBook appears in the Device Manager as a USB Graphics Extender and is immidiately available to the system. It does not require an external power supply as it draws enough juice from the USB interface. The actual power usage of ViBook is within the USB specifications, so it can be used with all standard USB connections.
Monitor Control With VT MultiDisplay
The VT MultiDisplay program takes over control of monitor configuration once the ViBook is attached and automatically extends the Windows Desktop to the screen attached to the ViBook. Software installation is not necessary for the second display's configuration settings, since resolution, position, and color depth can still be managed using standard Windows tools.
Should you choose to install the VT MultiDisplay software, however, you'll pick up some notable features for managing multiple monitors. For instance, VT MultiDisplay places a task border on the second monitor for the programs that are running on it. Additional icons enable program windows to be shifted at the push of a button. Windows can also be clicked and dragged from one monitor to another. The software also enables different background pictures to be selected for each monitor, a capability that could not be done through Windows previously. The VT MultiDisplay software also proves useful if you changes frequently back and forth between different monitor configurations, as the app stores monitor profiles for use down the line.
Sufficient Performance for Office Work
The performance of the USB graphics extender is more than sufficient for working in a productivity environment. Even Flash-based videos on YouTube played back with sufficient responsiveness on our Samsung Aura R70 notebook, equipped with a Core 2 Duo T7300 processor (2.0 GHz) and 2 GB of RAM. What was somewhat disturbing, however, was the high processor load as soon as there was movement taking place on the monitor. When playing videos, the load increased within the range of 90-95% and slowed the remaining system down accordingly and noticeably. Apparently, this is due to the technology that transmits the video signals from the computer to the ViBook over USB.
Compression of Graphics Data
The graphics data is compressed, sent over the USB connection and then decompressed by the ViBook to provide the picture on the additional monitor. This procedure can be very CPU-intensive depending on the resolution and degree of change going on. As you might imagine, in a video, there's often a lot of fast changes going on over much of the screen. If the notebook is just running on battery power, this will have a big impact on runtime. On the other hand, this procedure is still efficient, as it uses power over USB 2.0 exclusively.