6 Replies Latest reply on Jun 21, 2012 11:25 PM by scharupa

    GPU Disabled without display attached

    carstenskjaer

      I am working on a project where we plan to use an AMD GPU (probably 7850) as a compute only device (using openCL as API). For that we would like to run it without attaching a display - the display would be run from the integrated GPU of the system instead.

      However AMD GPUs seem to be disabled if there is no display attached (they cannot be queried from openCL nor from the Catalyst Control Center). This happens both if you start your machine without a display attached and if you detach a display runtime.

       

      Is there a workaround for this? an upcomming fix?

       

      Note that NVidia GPUs have no such problem.

       

      My test configuration is as follows:

      CPU: Intel 2600K

      OS: Win7 64bit

      GPU: AMD 7850

      Display Driver: 12.4

       

      I'll be happy to provide more information...