Windows RDP Session hängt unter HyperV mit 100% CPU

  • Microsoft hat es wieder mal geschaft RDP Sessions zu 100% unbrauchbar zu machen :(


    Reproduzierbar mit Windows 10 (Server habe ich nicht reprodiuzieren können) und RDP Sessions zu Hyper-V Guests wenn man sich disconnected. Danach läuft der Guest auf 100% und man kann sich nicht mehr neu verbinden.


    Ein Workaround ist hier beschrieben:

    https://forums.intel.com/s/que…ly-patched?language=en_US


    As a workaround on all of my affected machines I have used Group Policy Editor to set


    Code
    Local Computer Policy
     Computer Configuration
      Administrative Templates
       Windows Components
        Remote Desktop Service
         Remote Desktop Session Host
          Remote Session Environment
           Use WDDM graphics display driver for Remote Desktop Connections
    to DISABLED


    This forces RDP to use the old (and now deprecated XDDM drivers). After rebooting, behaviour returns to normal and after disconnecting from an RDP session the RDP host (target machine) no longer shows DWM.EXE consuming CPU. This isn't a long term fix (to rely on a deprecated feature). I also don't understand why only a limited number of users are affected, but for now, I'm up and running again, and hoping for a Microsoft fix.


    super klasse darf man jetzt bei allen Windows 10 Guests machen - nerv.

    PV 18,2kWp - BHKW EcoPower 1.0, 30kWh LiON Sunny Island System

    BMW i3 60Ah (Verbrauch ca. 13,8kWh/100km; SW: I001-16-07-506)

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