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DisplayLink Software Release: External Release Note
Software Package: DisplayLink Graphics
Product Version: 6.1.35667.0
Product Date: 23rd November 2011
DisplayLink Core Software Version: 6.1.35667.0
DisplayLink Core Software Date: 23rd November 2011
DisplayLink DL-3x00 Firmware Version: 6.1.7.44090
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A. Introduction
===============
This is the R6.1 Product Release. It delivers the following features:
- Improved video smoothness for DL-1x0, DL-1x5 and DL-3x00 series
- Improved frame rate
- Reduced CPU utilization
- DL-3x00 series activity LED support
- Critical bug fixes and compatibility improvements for all products

For further support and information about DisplayLink software, please visit
http://www.displaylink.com/support


A1. Important notes about DL-3x00 Firmware
==========================================
This software release contains an embedded firmware image. DL-3x00 devices will
be automatically upgraded with this firmware upon connection.


B. Contents
===========
A. Introduction
A1. Important notes about DL-3x00 Firmware
B. Contents
C. New features
C1. Fixed issues since R6.0 (6.0.33743.0)
D. How to Install and Use
E. Supported Operating Systems
F. PC Recommended Specifications
G. Language Support
H. Supported Hardware
I. Known Issues and Limitations


C. New features
===============
DisplayLink Software Release R6.1 delivers the following features:
- Improved video smoothness for DL-1x0, DL-1x5 and DL-3x00 series
- Improved frame rate
- Reduced CPU utilization
- DL-3x00 series activity LED support
- Critical bug fixes and compatibilty improvements for all products


C1. Fixed issues since R6.0 (6.0.33743.0)
-----------------------------------------
Monitor resolutions not updated after hot plugging some displays. (11704)

HDCP compatibility. (12831, 12860) 

DisplayLink Software takes too long to shut down. (12744)

HDMI compliance tests issues. (12404)

HDMI Compliance: Test 7-19 General Control Packet Colour Depth. (12641)

HDMI Compliance: Test 7-1 EDID 4 Block. (12639)

Audio not working if board is behind full-speed Hub. (12592)

When using 5.1 digital audio, center and subwoofer channels are swapped.
(11533)

Computer may crash during drivers upgrade. (11585, 12240)

Computers with Fresco USB3.0 controllers may crash during video playback.
(11608)

Corrupted video when a DL-3x00 device is connected to a monitor through an AV
receiver. (11686)

When changing monitor attached to DL-3000 device WDP may display branding of
the previous monitor. (11704)

Occasional instability when transferring large files. (11598, 10479) 

Sometimes the DisplayLink screen will remain blank when the device is
re-plugged after having been disconnected during power save. (11708)

Selecting "Notebook Monitor Off" for the first time makes the DisplayLink
screen blank. Disconnect and reconnect to recover. (11688)

Crash when downloading big files through a USB3.0 Ethernet connection. (11781)

Computer may crash when shutting down or restarting. (11850, 12277)

On Vista and XP systems the screen resolution menu item in the DisplayLink GUI
is greyed out when connecting a DL-3x00 with two attached monitors. (11890)

Audio over USB 3.0 does not work on computers with Fresco USB 3.0 controllers.
(11937)

Sometimes the monitor state in the DisplayLink GUI is shown as 'Main monitor
off' while it should be 'Extend'. (12049)

Ethernet will show unplugged status if the Ethernet cable is connected before
the USB cable. (11958)

In some rare cases unplugging the device from the USB port while a network
transfer is pending will make the file transfer hang. (12199, 12278)

The 1920x1200 resolution may not work properly with some monitors. (12292)

DWM may crash while playing video on both outputs of DL-3000 device. (12323)

Audio 5.0 channels volume cannot be changed independently. (12340)

System may run low on memory when playing video for very long time. (12367)

Black screen with cursor flashing after driver installation. (12398)

Moving a mouse over full-screen video playback causes quality to drop. (12409)

Choosing some non-native resolutions on certain monitors may cause "unsupported
timings" error message. (12479, 12301)

Installer is not localized. (12607)

Immediately after hot plugging a monitor to a DL-3x00 device corrupted screen
contents are sometimes shown for a moment. (11762)

Sometimes corrupted screen contents are shown on a DL-3x00 device during the
boot process. (12034)

DisplayLink monitor displaying full red screen on some monitors. (12394)

DisplayPort monitor compability. (12113, 12450, 12513, 12450)

No audio on some 5.1 sound systems after HDMI re-plug. (12520)

DisplayLink monitor is blank after hibernate/resume. (12174, 12333, 12776)

Audio and Ethernet branding. (12291)

HDMI audio stream is clipped at the beginning of playback. (12182)

Changing resolution when during video playback may hang DisplayLink device.
(12356)

Detaching one of two HDMI monitors attached to DisplayLink device disables
audio on both monitors. (12388)

Sometimes DisplayLink screen comes on in clone mode instead of extending when
connecting the device for the very first time. (10217)

Sometimes video may freeze on DisplayLink monitor. (11333)

Some short tones are not audible over HDMI. (12226)

Blips can be heard during audio playback. (11595)

DisplayLink monitor will appear without name and with default resolutions list
on first connect. (12294)

Sometimes a DisplayLink monitor will not switch off when disconnecting from
computer. (12306)

Reduced Ethernet performance in some audio setups. (12526)

Red screen on some monitor configurations. (12438)

Screen is black and flicker all the time after installation on some machines.
(12314)

Firmware upgrade is performed repeatedly after software upgrade. (12915)


D. How to Install and use
=========================
Please find detailed guidance and information about how to install and use this
software in the DisplayLink Software User Guide: http://kb.displaylink.com/298

Corporations can apply for a corporate install version at 
www.displaylink.com/corporateinstall

For further support and information about DisplayLink software, please visit 
http://www.displaylink.com/support


E. Supported Operating Systems
==============================
This release can be installed on the following operating systems:

    - Windows XP SP2 (32-bit edition only)
    - Windows XP SP3 (32-bit edition only)
    - Windows Vista SP1 (32-bit and 64-bit editions)
    - Windows Vista SP2 (32-bit and 64-bit editions)
    - Windows 7 (32-bit and 64-bit editions)
    - Windows Server 2008 (32-bit and 64-bit editions)
       (This OS has received limited testing)
    - Windows Server 2008 R2
       (This OS has received limited testing)

Windows 2000 SP4 is supported by older versions of the DisplayLink software:
http://www.displaylink.com/downloads

Video: video is supported in extend mode with most popular video players on
Windows XP and Windows 7/Vista in WDDM/Aero Mode. Video support is limited in
other configurations including mirror mode and Windows 7/Vista Basic Mode.

Installation on Windows Server is enabled, but untested. End users may try to
use DisplayLink on server editions, but these are not supported configurations.


F. PC Recommended Specifications
================================
Please find detailed information about the minimum and recommended system
specifications needed to run this software in the DisplayLink
Software User Guide: http://kb.displaylink.com/298


G. Language Support
===================
Please find the complete list of languages supported by this software in the
DisplayLink Software User Guide: http://kb.displaylink.com/298


H. Supported Hardware
=====================
Devices supported:
- DL-3100 / DL-3500 / DL-3700 / DL-3900
- DL115 / DL125 / DL165 / DL195
- DL120 / DL160


I. Known Issues and Limitations
===============================
System behaviour with DisplayLink attached screens has been well tested.
Testing covers plug/unplug, mode changes, playing video, hibernate,
sleep/standby, multiple users, different user rights, attached screen as
primary screen, attached screen as only screen, and other aspects.

Some use cases may exhibit minor issues, general troubleshooting
recommendations are:
- detach then reattach the DisplayLink device's USB cable
- change display settings using DL-GUI
- change display settings using WDP
- ensure you have the latest graphics drivers installed for your system GPU

For information about specific issues please see the DisplayLink support
knowledgebase: http://www.displaylink.com/support/knowledgebase.php
