Horizon 7 - Black screen with Zero Clients during logon and 3D Rendering problem with Windows 7

[alienjoker]

Hi all,

After an upgrade from View 5.3.4 to Horizon 7.0.1 we now find that with 3D Rendering turned on (Software) at the Pool level, during a user logon on a P25 Wyse zero client that the screen goes black and back to the "Welcome" prompt roughly 3-4 times before the desktop is eventually displayed. This doesn't however exist if we disable 3D rendering, but the problem we then find is that Aero is no longer functional within Windows 7 because according to Windows, the "Video Card Driver doesn't support Aero effects!". On the odd occasion, during the black to back screen refreshing on the Wyse P25 device, that the resolution drops to something crazy like 1280x1024 instead of the 2x monitors 1920x1200 resolutions. PCoIP logs show a number of failed attempts to get the right information about the attached monitors:-

"Failed to reconfigure 2 current display(s) from 1 reported displays"

It would suggest that there have been some significant changes to the SVGA driver used within the Horizon Agent package which results in this bizarre behaviour.

Typically, I wouldn't care so much about leaving Aero switched off as per VMware OSOT recommendation, however we find that Outlook 2010 has problems dynamically updating inbox content without the DWM service running with Composition switched on.

Any others experiencing similar behaviour?

Thanks

Andrew

[alienjoker · Accepted solution]

Upgrading to the Horizon agent 7.0.2 resolved the problem for us. The VMware SVGA 3D driver has been bumped up from 8.15.1.46 to 8.15.1.48 in this release.

GSS have yet to confirm what the release was set to fix from a GFX perspective but there are no details in the release notes to suggest it would have resolved it.