On Vista WDDM systems with Intel 945GM graphics and with graphics driver versions around
7.14.10.1461 and 7.14.10.1504, playing a video on a DisplayLink attached screen can cause the
whole system to run very slow. A reboot is needed to resolve this. To avoid the problem, do not
play video on such DisplayLink screens, or downgrade the graphics drivers. (3076)
On Vista WDDM, some computers with Intel graphics reset DisplayLink screens from extend to
mirror when coming out of sleep. A workaround is to disable the Intel persistence application,
by removing
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\Persistence
(The normal value would be C:\windows\system32\igfxpers.exe). (2546)
DisplayLink software is currently compatible with Intel/ATI hybrid graphics architectures.
Nvidia hybrid platforms are not supported yet. (3068)
Known Issues - ATI graphics
The ATI Catalyst Control Center is a tool provided by ATI to control ATI graphics cards. In the
presence of DisplayLink attached screens, some parts of the tool, such as its adjustments submenu,
do not work. This is on all OSes. (1596)
Some versions of the ATI Catalyst Control Center crash in the presence of DisplayLink software.
This has been observed with versions since ATI driver version 8.360. This can cause problems
when a screen is attached to the PC. To work around the problem, uninstall the ATI Catalyst
Control Center.
On Vista WDDM with ATI graphics, the ATI External Event Utility can interfere with remembered
settings for DisplayLink screens. To avoid this, disable the ATI External Event Utility as follows:
Navigate to Control Panel -> System and Maintenance -> Administrative Tools ->
Services: Ati External Event Utility and change the startup type to Disabled. (2674)
Known Issues - Nvidia graphics
On Vista WDDM, Nvidia driver versions earlier than 7.15.10.7500 or 7.15.11.7500 exhibit
slowness on DisplayLink screens on some PCs. To fix this, please upgrade to more recent Nvidia
graphics drivers. (2282)
With Vista, a maximum of four DisplayLink screens are supported on machines with Nvidia
graphics. In certain rare cases, exceeding this has been seen to cause repeated serious crashes.
(1781)
On Vista WDDM, older versions of Nvidia drivers with versions prior to 7.15.11.146 can behave
badly in the presence of DisplayLink software. For instance they can cause blue screens when
applications are maximised on DisplayLink screens. Also, if DisplayLink devices are attached or
detached during restart, it may be necessary to press the reset button on the PC to restore normal
functioning. (2119)
