===============================================================================
===============================================================================
DisplayLink Software Release: External Release Note
Software Package: Dell USB Docking Software
Product Version: 7.4.51587.0
Product Date: 11th October 2013
DisplayLink Core Software Version: 7.4.51572.0
DisplayLink Core Software Date: 7th October 2013
DisplayLink DL-3x00 Firmware Version: 8.4.11.57553
DisplayLink DL-41xx Firmware Version: 8.4.11.57553
===============================================================================
===============================================================================
A. Introduction
===============
This is R7.4M2, the second maintenance release of R7.4. It has been put through
a full system test and is suitable for deployment to end-users.
DisplayLink Software Release R7.4M2 delivers the following improvements:
- Improved application compatibility in Windows 8.1
- Improved Ethernet performance and stability
- Additional translations for all languages
- Critical bug fixes
DisplayLink Software Release R7.4 delivers the following improvements:
- Support for Windows 8.1
- Allow 2nd video output of DL-3900 products when a high resolution DisplayPort
display is connected
- 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 and DL-41xx Firmware
======================================================
This software release contains an embedded firmware image. DL-3x00/DL-41xx
devices will be automatically upgraded with this firmware upon connection.
B. Contents
===========
A. Introduction
A1. Important notes about DL-3x00 and DL-41xx Firmware
B. Contents
C. New features
C1. Fixed issues since R7.4 (7.4.50415.0)
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 R7.4M2 delivers the following improvements:
- Improved application compatibility in Windows 8.1
- Improved Ethernet performance and stability
- Additional translations for all languages
- Critical bug fixes
DisplayLink Software Release R7.4 delivers the following improvements:
- Support for Windows 8.1
- Allow 2nd video output of DL-3900 products when a high resolution DisplayPort
display is connected
- Critical bug fixes and compatibility improvements for all products
C1. Fixed issues since R7.4 M0 (7.4.50415.0)
--------------------------------------------
Lenovo X1 Carbon system shows corruption for 3 seconds resuming from hibernation. (16078)
Long delay to extend a DisplayLink screen on some PCs with Windows 8.1. (16095)
Blue screen in Ethernet driver while sending oversized Ethernet packets. (16250)
Memory leak in Ethernet driver. (16196)
Windows Media Center frozen while in full screen on Windows 8.1. (15479)
DisplayLink devices may not work on some systems with Etron USB 3.0 host
controller. (15736)
Blank display with some full screen applications in Windows 8.1. (15838)
Blank DisplayLink screens on some nVidia Optimus systems. (15986, 16254, 16007)
Error message "dlumd11.dll is either not designed to run on Windows or it contains an error" displayed on some systems after installation. (16271)
Ethernet connection reliability issues. (15879, 16330, 16270, 15942, 16170)
Ethernet not reliable at 10Mbps. (15661)
Device not resuming reliably enumerating on the USB bus after sleep or hibernate. (16285)
On Windows7 in Basic Mode when resuming from sleep the mouse cursor
may be not visible. (15055)
DL-41xx products can enter test mode during normal operation. (15862)
On some platforms, the HDMI monitor is still an image after the dock is
disconnected from the PC. (15827)
Quality of DisplayLink screen sometimes drops suddenly resulting in a corrupted
image. (16187)
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 8 (32-bit and 64-bit editions)
- Windows 8.1 (32-bit and 64-bit editions)
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 - Windows 8.1.
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-41xx
- 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
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.