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AdderView DVI Installation and Use Page 16
Keyboard and mouse mode switching - The AdderView DVI keeps a log of the
keyboard and mouse mode and resolution settings requested by each of the
connected PCs. These settings are automatically restored to the shared keyboard
and mouse when the AdderView DVI channel is switched thus ensuring maximum
software compatibility. The keyboard num, caps and scroll lock states are an
obvious example of this process.
2.10 Re-enabling a disconnected PS/2 mouse
If you disconnect the shared PS/2 mouse from the AdderView DVI by accident
during operation then the mouse operation will be lost when the mouse is plugged
back in. To avoid having to reboot the entire system in this situation the AdderView
DVI is fitted with an automatic mouse recovery system.
With the PS/2 mouse disconnected, change the channel using the keypad or
keyboard hotkeys. The AdderView DVI detects that the mouse has been
disconnected and triggers the automatic recovery system. Plug in the PS/2 mouse
and the AdderView DVI will re-initialise it.
Alternatively you can reset the keyboards and mice by holding down the front panel
key for 5 seconds. When the character ‘C’ is displayed on the front of the AdderView
DVI, press the front panel key again. A complete power off reset of the connected
keyboards and mice will then be performed. This function only resets the shared
keyboard and mice that are plugged into the control port. It does not affect the status
of any of the other ports on the switch or the CPU connections.
2.11 Hot plugging the AdderView DVI into running systems and re-
enabling disconnected CPU PS/2 mouse connections
It is advisable to switch off the systems that are going to be connected to the
AdderView DVI before installation. However, if this is not possible then most
systems can be hot plugged by using the AdderView DVI’s mouse restoration
functions. The keyboard connection will normally restore itself automatically.
On many PCs, mouse movement will be lost if the PS/2 mouse is unplugged and
plugged back in whilst the PC is running. Mouse movement can then only be
restored by rebooting the PC. This is because the mouse drivers only setup and