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Who is ViDock Gfx for?
ViDock Gfx has been designed to offer
a no-compromise feature set. This requires adequate
support from both the notebook and the OS that are
interacting with ViDock Gfx.
There are two main prerequisites that
ViDock Gfx needs to work seamlessly in a system:
- Enough resources are allocated for the graphics
This depends on both the notebook's BIOS and the OS
- The OS supports the ViDock Gfx driver.
This depends on the OS version and, for Windows Vista,
also on the notebook's built in graphics card.
Operating system compatibility
Please find your system in the following table. 32
and 64 bit versions of any OS are supported and have
the same level of compatibility.
Currently not supported
Supported, without hot plug capability
|Mac OS X 10.5
Mac Edition, currently compatible only with MacBookPro generations 1, 2 and 4. No hot plug supported
ViDock Gfx is designed for Windows 7. Windows 7 in fact enables all the capabilities that make ViDock Gfx fully functional in term of compatibility and hot-pluggability (graceful removal still required) on any system.
Windows Vista limits multi display
support by allowing only one graphics driver running
in the system. For this reason only systems featuring ATI graphics engines on the motherboard are supported, and systems running NVidia or Intel graphcis are not compatible.
is supported both in plug in and plug out (graceful removal
is still required). And yes, Aero 3D accelerated interface
is fully functional on all ViDock Gfx connected screens!
Both 32 bit and 64 bit version are
Windows XP relies on
the system BIOS for resource allocation. Even if PCMCIA specifications recommend honoring memory requirements of connected ExpressCard devices, some system BIOS may not allocate enough memory resources, making ViDock Gfx not compatible specifically on these not comforming systems.
For the same reason, the hot-plug
functionality of ViDock Gfx is not supported with Windows XP. Therefore,
you should expect to restart your system when you plug
in or before plugging out ViDock Gfx.
If the BIOS is granting resources, both 32 bit and 64 bit version are
In case you have problems with ViDock Gfx on a WinXP system, you can understand if you are having the BIOS resource allocation problem following the below instructions.
Start your system with ViBook plugged in. Click on the Start menu, choose Control Panel, double click on System, select the Hardware tab, click the Device Manager button, expand the Display Adapters node.
Double click on the item with a yellow exclamation mark on it, if any. If "This device cannot find enough free resources that it can use. (Code 12)" message will be displayed this confirms the BIOS resources allocation issue. See the the graphics on the right for a visual reference.
Mac OS X 10.5
ViDock Gfx Mac Edition is compatible only with MacBook Pro generation 1, 2 and 4.
Hot Plug is not supported due to Mac OS limitations, therefore the system must be fully powered off before plugging in or out ViDock Gfx.
Also on the generation 1, the internal graphics engine gets disabled when booting with ViDock Gfx, that means that only screens connected to ViDock Gfx are usable, not the notebook internal screen and it's DVI port.
The generation number can be retrived with Apple System Profiler tool, paying attention to the Model Identifier attribute, that is reported as MacBookProX,Y. The X value is the generation number. Latest MacBook Pro, called Unibody, is generation 5 and unfortunately it is not supported. See the the graphics on the right for a visual reference.
We are currently not supporting Linux
system. We expect a certain compatibility level could
be achieved by experienced Linux users. We expect to
offer support for Linux in the future.
Compatible PC Systems
The following is an incomplete list of compatible and not compatible systems as reported from our sources and experiments. This may be a guide in understanding your system compatibility. Please report more success or un-success stories to our support channel.
Here is some mildly technical information
if you'd like to have a deeper understanding of the
compatibility needs of ViDock Gfx.
A modern graphics card can feature
a significant amount of video memory. That memory must
be addressable by the OS, so a part of the addressable
space available must be reserved to interact with the
device connected to the ExpressCard slot.
The BIOS is initially responsible for reserving addresses
for the ExpressCard devices and the OS may be able
to override that setting.
The ExpressCard specification requires
the address space allocated to ExpressCard to be configurable.
As often happens, not all notebook makers are implementing
this feature in all their product line.
So it really depends on the specific
notebook model, the BIOS version and the OS installed.
Some hints that a system can correctly support ViDock Gfx
- It's a recent system
- The BIOS configuration panel is very detailed
- On Windows systems, you are using the Vista or Windows 7 version
The new graphics
architecture in Vista allows for only one WDDM (Windows
Vista Display Driver Model) to be loaded in the system.
Since graphics chips (GPUs) from different
manufacturers need different drivers, this means that
in order to use a WDDM driver you must match the GPU
of the notebook's built in graphics card to the ViDock Gfx's
For more information please look at
page from Microsoft.
Hot plug is an additional compatibility
step: a system that can correctly work with ViDock Gfx
after a cold boot may not be able to correctly hot
plug/unplug ViDock Gfx.
This is mostly a resource allocation
problem on Windows.
On Mac OS X, there
are subtle OS limitations that come into play and do
not allow for safe hot unplug.
WinXP BIOS resource allocation issue
Click to enlarge
MacOS X generation info
Click to enlarge