BTW: I'm on list, no need to CC. On Wed, 9 Aug 2017 10:38:23 +0900 Michel Dänzer <michel@xxxxxxxxxxx> wrote: > On 09/08/17 05:12 AM, David Niklas wrote: > > I know that currently some form of headless support already exists, > > but then I'd have to use crossfire (which does not work with the > > opensource driver AFAIK). > > You don't need CrossFire to make use of a GPU in a headless fashion. No, but you do if you intend to use your primary desktop machine and Vega supports only headless, or as Harry pointed out, a display driver (which, I am assuming means 2D only). Besides, and as a side thought, I have had the temptation of using two GPUs for compute tasks since it's just silly to toss/sell a GPU that could be useful and is worth more to me than it's online value in dollars (I have to choose the only GPU that actually goes *down* in price....) > OpenCL should support that out of the box, and in X the GPU can be used > for OpenGL apps via RandR 1.4 render offloading (obviously, you'll need > another GPU in the system that X can use for output). > You've lost me. Let my try to understand, and you correct me as I go astray. 1. X can send the OpenGL requests to another GPU while Vega does other things or idles mindlessly in headless mode. 2. X can send the OpenGL requests to the Vega GPU while the other GPU sends frames to the display from Vega. Also, do I need to configure X using RandR, or will it "just work" ... Stupid question, let me rephrase: What do I need to do to tell RandR to get X to work? Thanks, David
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