Currently the driver requires the user to have Administrator rights to the computer to install the USB VGA Docking Module. The software will continue to work if you subsequently login without Administrator rights.
Playing a WMV file in Windows Media Center causes a blank screen after a few minutes of playing
Problem:This is due to an interaction of Windows Media Player overlays and DisplayLink software
Solution:The issue can be worked around by disabling overlay support in Windows Media Player. Please refer to FAQ 420075 for further information on how to do this
The message "Failed to install device driver" when trying to install the USB Display adapter
Solution:This can occur if you have previously uninstalled the DisplayLink software and then try to reinstall without rebooting.
The PC needs to be rebooted after an uninstall before new DisplayLink software can be installed.
Cannot uninstall "DisplayLink Core Software" under "Add/Remove Programs".
The user receives the error message "Cannot uninstall DisplayLink Core Software because it is being used by other installed products".
Problem:The DisplayLink Core software cannot be uninstalled.
The core DisplayLink software and the customer driver software is separated for the situation where a customer has two products containing DisplayLink chips (e.g. a ACME Dock at work, and a DisplayLink enabled TV at home).
Using the example above, the Add or Remove dialogue would identify three items:
If one of the products is uninstalled, then the remaining product still needs the DisplayLink Core Software.
If only one product remains, and is uninstalled, then it will remove the DisplayLink Core Software as well.
This means that the DisplayLink Core Software will report itself as "in-use", causing the error seen
Solution:To remove the DisplayLink core software, ensure that all customer driver software has been uninstalled. In the above example this means uninstalling the ACME Dock and the Logie Baird TV Display Adaptor.
Once both products have been uninstalled, the DisplayLink core software will automatically be uninstalled.
When setting the DisplayLink Graphics Adaper to primary, the setting is not remembered by windows when pressing "Apply" or "OK" on Windows display properties.
This normally occurs on laptops.
Problem:The primary graphics adapter may ensure that the laptop screen, if enabled, is always the primary screen.
Solution:This is due to a third party application ensuring that the laptop screen is always primary.
To prevent the laptop screen from being primary, it needs to be disabled. This should allow the DisplayLink graphics adapter to be primary.
However after a reboot, the primary graphics driver may detect that neither of the laptop displays are enabled, therefore re-enable the primary laptop display. This will prevent the DisplayLink Graphics Adapter from becoming primary after a reboot.
| Version | Release date | Major Features or Fixes |
|---|---|---|
| 4.3.9881 (4.3 M3) | Mar 2007 |
|
| 4.3.9677 (4.3 M2) | Mar 2007 |
|
| 4.3.9110 (4.3 M1) | Feb 2007 |
|
| 4.3.8432 | Dec 2007 |
|
| 4.2.7056 | Aug 2007 |
|
| 4.2.6711 | July 2007 |
|
| 4.2.6685 | July 2007 |
|
To set up the USB Display Adapter to be the primary display:
The orientation of the screens can also be adjusted by dragging the location of the blue screens to match the actual physical layout.
Note: To stop this screen being the primary monitor, another screen must be selected as the primary monitor.
Note for laptop users: Some notebook graphics chips will not permit any monitor other than the built-in notebook screen to be the primary monitor. Please see FAQ number 4200144 for more information.
If you move a window onto an extended display and then you change the position of the extended display, the windows do move with the extended display, except for the Windows Display Properties dialogue.
Solution:This is an issue with Windows which is covered by Microsoft knowldgebase article 891391
A work around for this issue is to:
The next time WDP dialog is opened, it will appear on the main screen.
Although not supported or tested, the USB display adapter can be installed and used under Windows 2003 Server. However the USB display adapter does not operate in extend mode.
Problem:By default, when installed, Windows reduces the Hardware Acceleration level of the USB Display Adapter. The USB Display adapter requires full hardware acceleration to be enabled to correctly operate.
Solution:To enable full hardware acceleration:
It will now be possible to use the USB display adapter in extend mode.
Windows icons are not drawn properly when being mirrored to the USB Display adapter. Moving the mouse over the icons forces them to be re-drawn correctly.
Problem:This can occur when the USB Display Adapter is mirroring the primary display and there is another screen in extend mode, e.g. the direct VGA output from a laptop, the icons on the Windows desktop may not be drawn properly.
Solution: This is a Windows issue, and the solution is to disable the extended screen if appropriate.DisplayLink will try and work around the issue in a future version of software
The USB Display Adapter supports a subset of DirectDraw commands.
There is currently no support for Direct3D or hardware acceleration on Windows XP
DisplayLink Windows software supports up to 6 devices connected to the PC at any one time.
DisplayLink Intel Mac software supports up to four devices connected at any one time.
On installation of the USB Display adapter, the Ultramon smart taskbar does not appear on the new display.
Problem:This is an issue with Ultramon not supporting the dynamic addition of display adapters.
Solution:The solution is in a FAQ on the Ultramon website here.
Installing the software under Vista does not install a DisplayLink Graphics adapter. A user cannot extend the Windows desktop.
Problem:This is a known limitation in v4.1 software. If the user has installed Vista graphics drivers (WDDM), Vista only allows one graphics card to be supported. This means that DisplayLink cannot install an extend driver.
Solution:This has been fixed in version 4.2 and upwards.
V4.2 Provides multiple extended desktops in Vista Basic mode (not
Aero).
V4.3 Supports Vista Aero.
A single extended desktop is possible with v4.1. A user needs to uninstall the WDDM graphics adapter for the primary graphics card. Instead they need to install the XDDM (XP graphics drivers) for the graphics card. If the primary graphics card is using XDDM drivers, DisplayLink will install an extend driver to provide a single extended screen.
Note: Before changing the drivers for the primary graphics card, a user must uninstall any DisplayLink software
Movie playback is not smooth when played on the USB display adapter. It is worst when playing a media clip in full screen.
Problem:Movie playback may not be smooth due the large amount of display data being transferred during movie playback.
Note: Movie playback has been greatly improved in later versions of software. DisplayLink recommends using the latest available software for movie playback.
Solution:DisplayLink regularly improves video playback through driver updates. Please ensure that you are using the latest version of the DisplayLink driver.
Other ways to improve the performance are:
DisplayLink supports playback of SD/DVD/480p resolution video clips. HD clips are not currently supported.
There is a few seconds delay between connecting the USB Display adapter to the PC and an image appearing on the display.
Solution:The reason for this is that the PC needs to detect the new USB device and configure it. This configuration can take a few seconds to complete before the USB Display Adapter is ready to start displaying an image.
If the USB Display Adapter is part of a dock, all other elements in the dock could need to enumerate first, which can take a significant time.
On connection of the USB display adapter, the Found New Hardware Wizard does not appear.
"DisplayLink Core Software" is not found under "Add/remove programs".
Problem:This can occur if the DisplayLink device has previously been connected to the PC, but the Found New Hardware wizard had been cancelled. This means that the PC may not prompt for the installation of the DisplayLink device software again.
Solution:The DisplayLink software needs to be installed manually by running Setup.exe from your installation CD, or by downloading the latest software from your supplier.
To identify the version of software installed
The following languages are supported in the latest software
I am using a Toshiba Dynadock and am experiencing blue screens, reboots, or corrupted images on web pages.
Problem:This is caused by the Ethernet driver in the Dyandock.
Solution:Please ensure you are using the latest AX88772 USB Ethernet driver. It can be downloaded from the ASIX website:
http://www.asix.com.tw/products.php?op=pItemdetail&PItemID=86;71;101
The OpenGL screensavers (the 3D ones such as 3D flowerbox) do not display correctly in either extend or mirror mode, and may cause screen flashing.
Problem:This is due to interaction between OpenGL and the DisplayLink graphics drivers.
Solution:The solution is to not use the OpenGL or 3D screensavers
Google Earth maps are not drawn correctly on the mirrored screen. Moving the mouse over the screen forces them to be re-drawn correctly.
Google Earth sometimes does not work on an extended screen.
Problem:This occurs because Google Earth uses 3D libraries that interact with the DisplayLink graphics drivers. The problem occurs with both OpenGL and DirectX configurations of Google Earth.
Solution:The solution is to use Google Earth on an extended screen if appropriate. DisplayLink recommends OpenGL mode rather than DirectX mode for Google Earth.
Minimum system requirements are:
DisplayLink regularly improves video playback through driver updates. Please ensure that you are using the latest version of the DisplayLink driver.
Playing movies in mirror mode is not supported by Windows and therefore not supported by DisplayLink. This is because the Windows mirror driver does not support DirectX, required by some media players.
Video playback can be unpredictable in clone mode in Windows and performance will be considerably lower than the same screen in Extended desktop mode.
Adobe Photoshop Album Start Edition 3.0 does not work in full-screen mode on an extended desktop where the extended display resolution is lower than the full screen resolution
Problem:Adobe Photoshop Album Start Edition 3.0 maximises to the size of the primary screen, not the size of the screen it is on.
Solution:This is a limitation of Adobe Photoshop Album Start Edition 3.0. Either use it in windowed mode, or adjust the resolutions of the primary and extended monitors so that they match.
DisplayLink software does not run on 64-bit editions of Windows. Do not try to install on these platforms.
DisplayLink will support 64-bit Vista in a future version of the DisplayLink software.
This can occur if a user has been using an application on an extended display, eg Skype. The extended display has been disconnected but the Window still appears on the disconnected display.
Problem:Some applications remember their position relative to the primary display, even if this display no longer exists.
Solution:This is a Windows and application issue.
Click the application icon in the taskbar once to minimize, then click it again to maximize the window. Some applications will then move the window to a visible part of the screen. (this usually works with MS office apps).
If that doesn't work, follow the steps below to move the Window back onto the primary screen:
Once moved onto the primary display the window should continue to open on the primary display.
Yes. After a reboot, the numbers used in Windows Device Properties to identify the attached screens may change. Press the 'Identify' button for an easy way to find the new numbers.
It is also possible that a "dummy" adapter is installed in some scenarios.
When a movie is paused and the window of the player is moved, the picture sometimes stays where it is and does not move with the window. This has been observed with MPlayer and with RealPlayer when a divx is played.
Problem:This is a known limitation for performance reasons and is application specific.
Solution:Do not move the player window while the movie is paused.
When installing DisplayLink with an anti-virus program installed, a high alert warning is shown saying that a malicious script is detected. The installation does not complete unless all scripts are allowed to run
Problem:This occurs because the installer runs some VB scripts. Depending on its security level, an anti-virus program would alert about this.
Solution:A user may have to disable virus checkers, or lower their security level to allow installation.
This can occur if a device that the PC has not seen before is attached to a USB port that has not seen a device before Problem:
If a DisplayLink attached screen is moved from one USB port to another, and if it has never been connected to the new USB port, it stays in a disabled state until a user logs in. In particular, the login screen does not appear on it.
Solution:There is no workaround to this issue
The following error message is seen in the Tool tray:
Problem: This can occur if trying to mirror a primary display larger than 4 MegaPixels. These are modes above 2300x1700 (4:3) or 2600x1500 (16:9).
Solution:Reduce the size of the primary screen if you want to use mirror mode.
Some DVD players and movie players do not respond well when a monitor is enabled or disabled in the Windows Display Properties dialog box or when a non-primary monitor is made the primary monitor.
Problems include the following:
Some DVD players and movie players do not respond well when the movie window is moved from one monitor to another.
Problems include:
In some situations, some screen updates do not appear on the DisplayLink screen but do appear when the mouse is moved over the place where they should be.
This can occur
This is caused by Windows altering the frame buffer directly, bypassing standard GDI calls. This means that the DisplayLink driver does not get informed of the changes.
Solution:The workaround is to make sure that the Hardware acceleration is at its maximum value, and to use the mouse to 'paint in' areas that were not updated.
Yes, Windows Media Player (WMP) version 10 works on DisplayLink Graphics Adapters when part of the extended desktop.
WMP does not respond well in all situations:
Windows Media Player version 11 issues
Yes, PowerDVD works on DisplayLink Graphics Adapters when part of the extended desktop.
PowerDVD does not respond well in all situations, however. In particular:
Yes, WinDVD works on DisplayLink Graphics Adapters when part of the extended desktop.
WinDVD does not respond well in all situations, however. In particular:
Skype video does not work with DisplayLink Graphics Adapters under Windows XP. This is because it requires Video Mixing Renderer (VMR9) support, and the DisplayLink Graphics Adapters do not currently support this functionality.
Launch a command prompt (DOS window) and press Alt+Enter to switch the command prompt into Full Screen display mode. Any DisplayLink attached displays stop updating. When the command prompt is closed, the attached displays start working again.
Problem:When the command prompt is switched to Full Screen mode, the whole Windows display subsystem is disabled and all screen rendering is done via the DOS subsystem. DisplayLink graphics drivers run within the Windows subsystem and cannot detect DOS direct drawing commands.
Solution:The workaround is to use the command prompt in windowed mode.
It is often not possible to display two videos or DVDs on the same DisplayLink Graphics Adapter screen. This is because the overlay technology used to draw the video content onto the DisplayLink screen supports only a single overlay at a time.
If it is necessary to display two videos at once, make sure they are on different screens.
DisplayLink supports the latest versions of the following media players for use with its technology:
WinDVD , PowerDVD and Windows Media Player work well with DisplayLink Graphics Adapters. See separate FAQ entries for each of these players.
There is limited support for other players. Here are some examples:
On certain versions of Windows, the DisplayLink software cannot be installed.
Problem:DisplayLink software requires certain Microsoft patches and service packs (SP) for correct operation.
The installer for DisplayLink software prevents the installation on:
The reason that Windows 2000 SP4 is required is for Microsoft to provide USB2.0 support. DisplayLink requries USB2.0 for correct operation. Further details are available from the Microsoft knowledgebase here
Windows XP requires SP1 to add support for USB2.0, therefore Windows XP with no service packs is not supported.
Windows XP SP1 has an instability which could be observed with the USB Display Adapter. Therefore DisplayLink does not test or support Windows XP with SP1. Further details of the Microsoft instability can be found here
64 bit Windows Vista support will be available in summer 08. This is currently being developed by DisplayLink
Solution:DisplayLink supports the following operating systems:
64 bit Windows support for Vista will be available in Summer 2008
The distance between a computer and a device or hub is stated to be five meters according to the USB specification. The maximum distance distance per USB specification is 30m by using five hubs.
It is possible to extend the distance further by using networked USB solutions, however these devices may only support up to USB1.1 and not the USB2.0 standard. USB2.0 is required for DisplayLink's technology.
An error is seen in the tool tray:
Problem: This can occur when entering extend mode with low system resources. The PC does not have enough memory to start an extended display.
Solution:Close down any unused applications. The situation may also be improved by rebooting the PC.
A user may want to switch to using XDDM or WDDM graphics drivers for their primary graphics card
Problem:If using a graphics card in WDDM (Vista drivers), DisplayLink only provides mirror mode to the user. Changing to use XDDM (XP drivers) will also allow a single extend session
To obtain XDDM drivers for your graphics card, you may have to contact your graphics card provider. DisplayLink cannot provide the XDDM drivers for 3rd party graphics cards.
Solution:DisplayLink recommends to uninstall/reinstall displaylink software when switching between XDDM and WDDM display drivers on Vista.
Changing the primary monitor during movie playback stops the movie working on the primary screen
Problem:This problem appears to be an issue with Windows, as the same behaviour is observed when using second output of VGA card.
Solution:Do not change the primary display while playing a movie file
If a DisplayLink display adapter is set to be the primary monitor, and is disconnected, the PC will exit power saving mode
Problem:This is because the Windows Display Properties change, bringing the PC out of power save mode
Solution:There is no workaround for this issue
Installing DisplayLink software with Fast user switching and two users logged on
Installing DisplayLink software works, however no image is seen on the DisplayLink device
Solution:A reboot is required before the system detects the new device.
DisplayLink recommends only installing the software when one user is logged into the PC
On uninstalling a DisplayLink branded product installation (eg ACME display adapter), the ACME display adapter does not blank and shows a frozen screen
Problem:This can occur when uninstalling a branded product, and there are other DisplayLink branded releases installed. For example ACME software and Logie-Baird software are installed and a user removes ACME software.
Solution:This is a known issue. Windows uninstalls the software before it sends a blank message to the device. It does not occur when uninstalling the last DisplayLink package
Disconnecting or reconnecting during screensaver cancels the screensaver, and can produce white screens, which don't cleanly exit.
Problem:On all OSes, detaching or attaching DisplayLink attached screens while a screensaver is running may cause strange effects. The screensaver cancels because the Windows Display Properties change, which causes the displays to exit out of the screensaver
Solution:Sometimes it is necessary to detach and reattach the DisplayLink attached screen after exiting the screensaver.
There is no workaround for the cancelling out of screensaver issue
Video performance is slow on Windows 2000, also moving a window is slow on a DisplayLink screen.
Problem:In the Windows 2000 Device Manager under Universal Serial Bus Controllers there should be an item called "USB 2.0 Root Hub". If it is not there then they adapter will be using USB1.0 rather than USB2.0, which is slower.
Solution:Install the USB2.0 driver as described in the Microsoft knowledgebase article here.
This occurs when connecting the monitor to the DisplayLink device using a VGA cable
Problem:
This monitor provides strange detection when connecting this monitor over VGA. The monitor keeps appearing as a "new" monitor. This causes the DisplayLink software to think there is a new monitor connected, causing the flicking on and off.
Solution:To workaround this issue, disable auto-input detection on the monitor.
Setup.exe causes alerts sometimes during installation. An example message is shown below:
During installation, it is possible that setup.exe tries to connect to the Internet to get Certificate Revocation List. This is to verify the DisplayLink digital signature. This is a normal part of the installation process.
Windows has a cache of Certificate Revocation Lists so Setup.exe does not have to connect to the Internet on each install.
Solution:Please let Setup.exe connect to the internet if requested.
If a DisplayLink device is connected to a monitor that does not support automatic detection of supported resolutions (EDID), what modes are offered?
Problem:If a monitor supports EDID, it will report a list of supported modes to the DisplayLink software. Those modes that are supported by both the monitor and the DisplayLink hardware/software will be offered to the user.
However if no modes are offered by the monitor, a different method must be offered
Solution:If no EDID is detected and the monitor reports no supported modes, DisplayLink software will offer the following modes:
Notes:
Higher resolutions may not be available on some devices
Not all these resolutions may be supported by the connected monitor. Please confirm that the resolution is supported by the monitor before connecting it, failure to do so may result in damage
The DisplayLink enabled device is installed by Windows as display 2. The display is visible in windows display properties, but cannot be enabled as an extended monitor.
Problem:Some laptops with ATi based PCs always assume that the second display is the VGA port on the laptop, but on some occassions Windows may enumerate the displays in a different order.
ATi have written an application (ATI2EVXX.EXE) that runs in the background of windows. This application disables monitor number 2 if nothing is plugged into the VGA port.
If the DisplayLink adapter is installed as display 2, and configured to extend mode, then the ATi application disables it - because nothing is plugged into the VGA port.
Solution:Disable the background task ATI2EVXX.exe. This can be done by removing the startup entry in the registry under HKLM/Software/Microsoft/Windows/Current Version/Run/
Note: DisplayLink cannot take responsibilty for any problems caused by users changing or corrupting their registry.
When connecting multiple USB display adapters to a PC running Vista, only one screen can be configured in extend. All other screens are in Mirror mode.
Problem:This is due to a restriction of Microsoft Vista. If the primary display is using XDDM (XP) graphics drivers, it is only possible to configure one extended display. WDDM (Vista) graphics drivers need to be used by the primary graphics card to allow more than one extended screen with the USB display adapters.
To identify whether XDDM or WDDM graphics drivers are being used, open the Windows Welcome Center from Control Panel. The graphics mode is shown here:
Please download and install WDDM drivers for your primary graphics card.
The PC fails to boot when a USB device is attached
Solution:This is observed on PCs with old BIOS. The solution is normally to update the BIOS from the manufacturer's website.
If updating the BIOS does not solve the problem, also try setting the USB Legacy Mode to Full Speed (not High Speed).
When installing the DisplayLink software, one or more reboots are required before an image is seen on the display.
Problem:Windows XP
Occasionally, when installing the DisplayLink graphics drivers on Windows XP, the extend and/or mirror driver is not correctly started by windows and cannot be used by the DisplayLink software. The software detects this and prompts the user to reboot. The DisplayLink Graphics driver works correctly after a reboot.
Windows Vista
After installing on Windows Vista, a reboot is always required. This is required to allow the DisplayLink service to start.
After the PC restarts, occasionally the extend and/or mirror driver is not correctly started by Windows (same issue as XP above). Therefore another reboot may be prompted for. This means that it is possble that a PC using Vista may have to be rebooted multiple times before an image is seen on the display.
Solution:DisplayLink continue to investigate a solution to multiple reboots sometimes being required in Microsoft Vista.
Having installed the DisplayLink driver, the Primary and/or the DisplayLink display are in VGA and only 4 bit colour.
Problem:Some third party graphics drivers assume the position of their displays and try and control DisplayLink displays. This results in unpredictable behaviour.
Solution:This has been seen with an ASUS PCI-E graphics card. The problem is
fixed by disabling the "Enhanced Display Driver Helper Service" in device
manager:
When connecting or disconnecting a DisplayLink graphics adapter, the icon positions move.
Icons appear on the wrong monitor after you change the primary monitor in Windows XP.
Problem:The same problems can be observed using two built in graphics adapters. Therefore these are not issues with DisplayLink technology, but with Windows. DisplayLink cannot fix these issues.
On XP, after the primary monitor is changed to an DisplayLink atatched extend screen, the desktop icons may appear on the wrong monitor.
These are both problems with Windows and its handling of extended displays.
Solution:There is no solution for this issue. It is caused by Windows and is not related to DisplayLink.
Windows Installer error 2738 may happen if the user's VBScripting service isn't working correctly.
Possible causes are:
Antivirus or Firewall Software is an issue:
VBScripts Disabled
To verify that this is the case:
To reenable VBScripts:
Windows Scripting issue
DisplayLink currently support the major Microsoft Windows operating systems, including Windows 2000, Windows XP, and Windows Vista. For further details, please see FAQ 420088. DisplayLink does not currently support the Mac OS X or Linux operating systems.
A Mac OS X beta driver for Intel Macintosh computers is available as a free download from the DisplayLink website.
DisplayLink is investigating support for other operating systems and will provide updates to this FAQ entry when more information is available.
DisplayLink announced its plans to support the Macintosh platform at MacWorld 2008, in partnership with Kensington. DisplayLink USB graphics devices will be supported on Intel-based Macintosh computers by installing a software driver on the Mac. The driver will be a free download from the DisplayLink website, and a public beta for Intel Macintosh is now available. For more information please see the DisplayLink Macintosh Press Release.
Some Dell laptops have a feature called Dell Media Direct, which is also known as Cyberlink PowerCinema on other systems.
This is a separate partition that can be booted into without booting up the main operating system, and it provides a limited set of services. DisplayLink USB Displays do not work in this environment.
Problem:This feature operates as a closed platform and it is not possible to install DisplayLink software into it, so it cannot support DisplayLink attached screens.
Solution:There is no solution to install DisplayLink drivers in this situation
If you start up a Skype Video call, and then drag the Skype window onto the USB extended screen, then move the window around the screen - any window decorations drawn over the video area remain visible and the video is not redrawn.
Problem:Skype video requires VMR9 which requires hardware support. On Windows 2000 and Windows XP there is no support for VMR9 on DisplayLink displays, therefore the issues occur.
Using Windows Vista with a WDDM graphics driver allows the VMP processing to be done by the primary graphics card, before being sent to the DisplayLink display.
Solution:Use the Skype video application on the main, directly connected display.
On Vista WDDM, some computers with Intel graphics reset DisplayLink screens from extend to mirror when coming out of sleep, or unlocking after a lock screen.
Problem:The Intel software is updating the display settings according to what it thinks is required; this occurs after the DisplayLink Manager has finished setting up the displays. The Intel software "Graphics Media Acceleration" control panel applet and system tray icon does not recognize our monitors.
Solution:The easiest way to stop this problem is to disable the Intel persistence application, igfxpers, using Windows defender.
To disable the Intel desktop persistence program:
To reenable the Intel desktop persistence program use the same steps, but press "Enable"
Various symptoms may be observed, such as:
Tiger Users: DisplayLink displays connected to Kensington & Toshiba docks may not display when the Mac awakes from a system sleep.
All Users: DisplayLink displays connected to a hub may not wake up after Mac resumes from a system sleep.
Solution:Disconnecting and reconnecting the DisplayLink display/device should hopefully cause the display to resume and function correctly.
Please note at present we suggest that a maximum of 2 DisplayLink devices are connected to a hub at anyone time, to ensure optimum performance and reliability.
However this is a known issue and we are investigating a possible fix for a future release.
Do not disconnect a DisplayLink display when System Preferences is displayed.
This is a known issue, and we shall try to resolve it in a future release.
Applications that require Quartz/OpenGL/hardware acceleration support are likely to exhibit problems if they are run on a DisplayLink Display.
Some known application issues include:
Some problems can be avoided by ensuring that a DisplayLink display is not set to be the main display (i.e the display with the menu bar).
If an application refuses to launch when a DisplayLink display is present, try to disconnect all DisplayLink displays, then try to relaunch teh application. Then connect the DisplayLink displays.
This is a known issue, and we hope to support Quartz/OpenGL/hardware acceleration in a future release.
Some hubs struggle to effectively manage the data transfer, when more than two DisplayLink devices are connected to the same hub.
Solution:Therefore at present we suggest that a maximum of 2 DisplayLink devices are connected to a hub at anyone time, to ensure optimum performance and reliability.
This is a known issue, which we hope to resolve in a future release
We suggest that users do not use Fast User Switching when DisplayLink displays are connected, as we have experienced unreliability with this operating system function on certain configurations.
This is a known issue, and we aim to fully support fast user switching in a future release.
Try disconnecting the DisplayLink displays, and requesting the "Login Window" again. It should now appear as expected.
This is a known issue and we hope to support Fast User Switching in a future release.
The VB Scripting may not be operational due to following reasons:
In Powerpoint, the "Display slide show on:" menu has a bug which means that it does not work when there are gaps in the numbering of enabled displays (as shown in WDP).
Problem:The behaviour described is caused by a bug in PowerPoint when there is a gap in the Windows Display Properties (WDP) numbering of ENABLED displays.
PP enumerates the NUMBER of enabled displays, then populates the "Display slide show on:" box with the 1st, 2nd, 3rd, ... etc display (as numerated by WDP), whether or not the display happens to be attached and enabled.
This means that if displays 1 and 3 are enabled (a common set up when there is one DisplayLink display attached), then the "Display slide show on:" menu in the "Set up slide show" box actually shows Display 1 and Display 2 (assuming there is a disabled 2nd head on the graphics card). As expected, enabling display 2 fixes the problem.
Solution:Users of Powerpoint 2007 can get round this by using "Show presentation on:" in the ribbon, rather than the "Set up slide show" box.
On Vista WDDM with ATI graphics, TMM brings up the ATI Catalyst Control Center (CCC). Some versions of the CCC crash in the presence of DisplayLink software.
Problem:DisplayLink software on Vista works by using the primary graphics card driver to add extra screens. The ATI Catalyst Control Center does not appear to work with more than two ATI graphics adapters, therefore crashes when used in conjunction with DisplayLink
Solution:A workaround is to disable task "MobilePC\TMM" from the Task Scheduler at Control Panel -> Admin Tools -> Task Scheduler.
On Vista WDDM in Aero mode, if the Task Bar is set to "auto hide", it goes transparent when a screen is detached from the PC.
Problem:This is a Windows issue as it occurs with all secondary screens, not just DisplayLink screens
Solution:To avoid this problem, do not set the task bar to auto-hide.