			DisplayLink Mac OS X Software Release Note
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DisplayLink Mac OS X Software Release: External Release Note
Version: 1.1 (15568)
Date: 14th November 2008
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This is a DisplayLink driver release that supports 2D acceleration on Mac OS X platforms. This software still contains some key issues:

    * No 3D (OpenGL) acceleration - some features of Mac OS X applications that require hardware OpenGL
      acceleration, such as Keynote presentations and iPhoto slideshows, will not function properly.

    * Colour calibration does not work on DisplayLink enabled displays.

Improvements over the DisplayLink Mac OS X Software 1.0 release include:

    * Improved 2D and Video Performance

    * Mac Pro Compatibility

    * Increased Stability

A full list of known and fixed issues can be found in the "Fixed Issues" and "Known Issues" sections below.

More information on how to use this software can be found in the Mac OS X User Guide found on the DisplayLink website (http://www.displaylink.com/mac)

Supported Operating Systems
============================

The DisplayLink software can be installed on any Intel-based desktop
or laptop Apple Mac computer running client versions of Mac OS X Tiger
10.4.11 or Mac OS X Leopard 10.5.5.

Note that at the time of writing these were the latest available versions of Mac OS X tested against.

Supported Mac platforms
==========================

***This software supports all Intel-based Macs.***

***It does not support Power-PC based Macs.***

Language support
=================

The DisplayLink software installer is localised in the following languages:

- English
- French
- German
- Dutch
- Italian
- Spanish
- Portuguese
- Polish
- Hungarian
- Russian
- Traditional Chinese
- Simplified Chinese
- Japanese
- Korean

Supported Hardware
==================

This version of software will support all current Displaylink enabled USB graphics devices.


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Fixed Issues
=============

Below is a list of all issues fixed from DisplayLink Mac OS X Software 1.0 Release - each issue is followed by an internal issue tracking number.

DisplayLink display performance sub optimal on Mac Pros (3372)

Window may disappear when moved fast between native and DisplayLink display (3737)

Mouse cursor may disappear when moving application windows between displays (3523)

Installer is not installing the uninstaller (4183)

Some DisplayLink devices not correctly recognized (4299)


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Known Issues
=============

Below is a list of all known issues in the DisplayLink Mac OS X Software - each issue is followed by an internal issue tracking number.

Parallels crashes changing window modes on the DisplayLink Display (3538)
** Upgrading to Parallels 4.0 release resolves this issue

VMWare Fusion crashes changing to full screen on the DisplayLink Display (3539)
** Upgrading to the VMWare Fusion 2.0 release resolves this issue.

Colour calibration does not work on DisplayLink displays (2374, 2606, 2373)

OS X 'Zoom' feature not redrawn correctly (3177)

Mouse cursor may disappear / freeze after system resumes from sleep (3165, 3205)
** Workaround: Command + Tab to a different application or disconnect/reconnect the DisplayLink device to recover.

Window server may freeze (3637)
** Workaround: Disconnect/reconnect the DisplayLink device to recover.

The DisplayLink display may not resume from sleep (3648)
** Workaround: Put the system to sleep and wake again or disconnect/reconnect the DisplayLink device to recover.

Display settings are remembered when they shouldn't be (2770)

No "stretched resolutions" are available on DisplayLink displays (2638)

Running VMWare OSes by default prevent Mac OS X from accessing the DisplayLink Device (2268)
** Workaround: Uncheck the "Automatically Connect USB Devices" checkbox in Virtual Machine | Settings | USB before connecting the DisplayLink Device.

System Preferences crashes - if open - when unplugging a DisplayLink display (2576, 2615, 3639)

QuickTime movie window is not redrawn when another window is moved over it (3380)

Apple Cinema displays are only supported in their native resolution (preferred mode), due to limitations in their hardware. For 20" displays this means that they work only at 1680x1050; only DisplayLink products that support up to 1680x1050 resolutions will therefore work with these displays. 23" Apple Cinema displays have a native resolution of 1920x1200 and there are currently no DisplayLink products that will support this resolution, the same is true of the 30" displays with a native resolution of 2560x1600. This is a limitation of Apple Cinema displays and is not specific to DisplayLink hardware (2560)

Clamshell mode does not preserve primary settings (3545)

If two displays with the same name are DisplayLink connected, the resolution list in the Menu Bar will show "Display 2, Display 3, ...". The Display Preferences will correctly show the name of the each DisplayLink connected display. (2630)

If a monitor that supports EDID is swapped for a monitor that does not support EDID, the resolution list may not get refreshed (2692)

Older monitors with EDIDs that are out of spec may not respond correctly (2558)

Slow performance on certain docking stations with built in Ethernet (3735)
** Comment: This issue is due to the USB to Ethernet chip driver. Please check the manufacturer's website for an update.

Powered down DisplayLink attached displays may not update resuming from sleep (3814)

DisplayLink devices may not work when the system is powered on (3750)
** Workaround: Disconnect/reconnect the DisplayLink device to recover. 

VMWare window not redrawn after resolution changes (3725)

Clamshell mode not possible with just a DisplayLink device attached display connected (3609)
** Comment: For clamshell mode to work with DisplayLink technology you must have a directly attached monitor in addition to the DisplayLink device attached display

Power management and USB disconnect-reconnect interaction (3555)
** Comment: If the Mac is in a sleep state, disconnecting and reconnecting the USB cable will resume the Mac from the sleep state.
If the Mac is displaying a screensaver, disconnecting and reconnecting the USB cable will not dismiss the screensaver.


OpenGL\Quartz\Hardware acceleration Issues (2487)
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Note: Applications that require Quartz\OpenGL\hardware acceleration support will likely exhibit problems with this version of DisplayLink software. Some problems can be avoided by making sure the DisplayLink display is not set to be the main display (the display with the menu bar) If an application refuses to launch when a DisplayLink display is present, try to disconnect all the DisplayLink displays, then launch it and then reconnect the displays.

Specific issues are described below:

Cover flow (Leopard) view in Finder sometimes displays corruption on a DisplayLink display set as primary (2515)

Garageband crashes if new project opened on primary DisplayLink display (3853)

DVD player moves from extended DisplayLink display back to main screen (2403)

Frontrow does not playback DVDs on a DisplayLink displays in Mirror mode (2321)

GoogleEarth does not always load terrains when it is on a DisplayLink extended display (2111)

iMovie displays message about an incompatible graphics card when launched with a DisplayLink display connected (2107 & 2363)

iPhoto causes DisplayLink screen to blank when playing a photo slideshow (2117)

Keynote embedded quicktime movie won't display on extending DisplayLink display (2552)

Keynote won't run if DisplayLink display is primary (2485)

OpenGL screensavers will not display on a DisplayLink display, these include:

-Arabesque
-Shell
-Spectrum
-Word of the day
-RSS Visualizer
(2544 & 2341)

PhotoBooth won't run if DisplayLink display is primary (2484)

VLC player crashes when DisplayLink display is primary (2528)

The zoom function in Google Earth can be jerky and unusable on a DisplayLink display (2486)

Backdrops won't run on a DisplayLink display (2361)

iChat windows blanks if resized with effects applied (2529)

Aperture crashes when opening large images on a DisplayLink display (2641)

Cannot enter full screen mode on extending DisplayLink display whilst using iChat Video Chat (2530)

Cannot enter full screen mode/resize window on extending DisplayLink display with Skype video (2531)

Full screen mode not possible using Parallel's Desktop on extending DisplayLink display (2619)
** Upgrading to Parallels 4.0 release resolves this issue

Mosaic display style screensaver won't run on extending DisplayLink display (2668)

FrontRow does not load on primary DisplayLink display (2307)

Other applications that rely on 3D hardware acceleration may display warnings or may show incorrect behaviour.


Error Messages Reference
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During install or uninstall of the DisplayLink software, you may encounter error messages.  This section describes in more detail what each of the error messages means.

Message: 
"It was not possible to detect the system version. The installation cannot continue."
Meaning: 
The DisplayLink Installer has been unable to detect which Mac OS version you are using, and therefore the installer cannot continue.

Message: 
"Incompatible operating system version detected. This installation requires Mac OS X version 10.4 or higher."
Meaning: 
The DisplayLink Installer has detected that the version of Mac OS X you are running is incompatible with the DisplayLink driver. Please upgrade to Mac OS X 10.4 or higher.

Message: 
"Mac OS X 10.6 operating system version detected. This installation may function correctly but has not been tested with this system version."
Meaning: 
The DisplayLink Driver is not currently supported on Mac OS X 10.6, and therefore full functionality can not be guaranteed. 

Message: 
"Incompatible CPU type detected. This product is designed to work on Intel-based Macintosh computers"
Meaning: 
The DisplayLink Installer has detected that the Mac you have tried to run the installer on does not have an Intel processor, and therefore can not continue.

Message: 
"The DisplayLink driver was not found. The uninstall cannot continue."
Meaning: 
This message occurs when you try to run the DisplayLink "Uninstaller.pkg", and there is currently no DisplayLink software installed on your Mac.

