Velleman PCUSBVGA2 Manuel d'utilisateur télécharger pdf (Page 8)

PCUSBVGA

• The actual resolutions and refresh rates available to the user are a compromise between the USB

display adaptor, the primary + add-on monitor and the primary video card + drivers. This to

ensure that the monitor can not be set to an unsupported mode and thus avoiding damage to the

monitor.

• To manually configure resolution, colour depth and refresh rate, go to the display settings of the

operating system. Right click anywhere on the desktop, select ‘Properties’ and select ‘settings’.

• To set the screen resolution, move the slider left or right (see image above). To set the colour

depth (quality), select the desired value from the drop-down menu (see image above).

• To change the refresh rate, click on ‘Advanced’ (see image above) and go to the monitor tab (see

image below – window and tab-titles depend on local settings), and select the desired refresh rate

from the drop-down menu.

• Click ‘OK’ to close the window(s).

8.2 Multiple adaptors

• Up to 6 adaptors can be connected simultaneously to a single computer – provided that enough

free USB 2.0 ports are available.

NOTICE:

→ Only 2 adaptors are supported under Windows Vista in XDDM mode! (see §8.3)

• First install one adaptor as described in §6, and when this installation is completed, simply plug in

more adaptors.

8.3 Vista XDDM mode

• XDDM refers to Windows XP Device Driver Model. It is a video card driver mode that provides an

XP-like interface. It is used in some Vista operating systems as opposed to WDDM (Windows

Device Driver Model). It does not support the Vista Aero interface.

• In this mode, only one extended and one mirrored screen are supported. Only the first connected

adaptor can be set to extended mode, the second is forced to use mirrored mode.

• To verify the local setting, right-click ‘Computer’ on the desktop and select ‘Device Manager’.

Expand the ‘Display adaptor’ item.

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Velleman PCUSBVGA2 Manuel d'utilisateur Page 8