The most recent issue that affects Windows 10 is a new issue that causes Windows Desktop Manager (DWM) to stop responding when the laptop lid is repeatedly opened and closed, or when the laptop is docked and docked several times. As a result, laptops crash unexpectedly.
According to Microsoft Technical Support, “This issue occurs because of a problem with the Microsoft DirectX Video Memory Management component (Dxgmms2.sys).” The documentation also indicates that this is a bug in Microsoft DirectX Video Memory Management Management and not a problem. with hardware.
Under certain circumstances, reopening and closing or docking and disconnecting the laptop when paired with external monitors will cause the Windows Desktop Desktop process (DWM.exe) to stop responding.
Windows Manager Desktop is software that supports adding monitors, adjusting the display to different resolutions, processing visual effects for desktop activities, and managing desktop activity on multiple screens. Errors in this software can result in everything from icons of the wrong size to system-wide failures that require a full system restart.
Microsoft has identified two scenarios that trigger this Windows Desktop Manager error:
You connect a High-Definition Multimedia Interface (HDMI) monitor to a Windows 10 laptop.
The monitor is configured to operate with a resolution of 4 KB.
You play 4K H264 video repeatedly on a movie and TV on your computer.
On the control panel, open the Advanced settings screen for Power Options, and then set the lid closing action to Do Nothing.
During 4K video playback, close and open the computer cover repeatedly.
You connect two 4K monitors to the Thunderbolt 3 docking station.
You connect a laptop that has a 4K solution monitor to the docking station, and then configure the 4K triple display configuration in “clone” or “expansion” mode.
You repeatedly disconnect and refill the laptop.
What to do if it affects you
In both of these situations, switching between monitors and a laptop seems to cause problems in the DWM.exe process.
Microsoft is working to resolve this issue. In the meantime, the simplest solution is to avoid unnecessarily closing or detaching the lid and restarting the system to return to normal operation in the event of a problem.