RDC uses different device drivers than are used when the user is logged in 
directly.  BOINC can only see what the user sees for device drivers as 
available GPUs.  

-----Original Message-----
From: boinc_dev [mailto:[email protected]] On Behalf Of 
Charles Elliott
Sent: Monday, March 25, 2013 8:58 AM
To: 'BOINC Dev Mailing List'
Subject: [boinc_dev] Remote Desktop Connection (RDC) Stops Any Running GPU Tasks

When one connects to a remote computer using RDC, the following message
appears in the Boinc Event Log: "GPUs have become unusable; disabling
tasks."  The only way to restart the GPU tasks is to either reboot by using
shutdown or, after changing a two settings in Computer Configuration -->
Administrative Templates --> Windows Components --> Remote Desktop Services
--> Remote Desktop Session Host using gpedit.msc, connect using VNC and
restart Boinc manually.  With VNC one just connects to the remote computer,
performs any maintenance task, disconnects, and all is well.  However, VNC
for windows 7 and up has recently become $35 a pop.

Would it be possible to find out why Boinc thinks the GPUs have become
unusable and change its behavior?

Charles Elliott

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