Ultra GammaView 2555 User Manual download pdf (Page 18)

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Upgrade Failed

If the Upgrade Succeeded screen doesn’t appear, it means that

the upgrade failed to complete successfully, in which case you

should do the following:

1. Disconnect the USB connectors on the KVM cables from the

computer.

2. Press and hold the Remote Port Selector’s pushbutton. While

you are still holding the pushbutton, reconnect the KVM

cable’s USB connectors to the computer.

3. Power on the GammaView. It will now work with the factory

default firmware. Follow steps 3 to 9 on page 17 again.

Troubleshooting

Symptom Possible Cause Action

Monitor does

not display

after the KVM

cable set is

hot-plugged.

DVI graphics card

is not compatible

with cable set hot-

plugging.

Power off all devices on the

installation; power off the U12-

41379; confirm all KVM cables are

properly connected; power on the

U12-41379; power on the

computers.

Graphics card

driver is not up-to-

date.

Upgrade to the latest graphics

card driver.

Mouse and/or

keyboard is

not

responding.

Switch needs to

be reset.

Power off all devices on the

installation; power off the U12-

41379; wait five seconds; power

on the U12-41379 again.

Mouse port-

switching

function is not

responding.

Mouse does not

support this

function.

This feature is only supported by

USB 3-key scroll wheel mice.

Mouse emulation

is disabled.

Enable mouse emulation. See

Hotkey Summary Table, page 15,

for details.

Cannot switch

ports by

pressing

[Scroll Lock]

twice.

Keyboard is

incompatible with

[Scroll Lock]

invocation.

Switch to the alternate HSM

invocation keys. See Alternate

Entering Hotkey Mode, page 14,

for details.

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Ultra GammaView 2555 User Manual Page 18

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