On 1 October 2014 03:15, Daniel Stone <dan...@fooishbar.org> wrote: > Hi, > > On 30 September 2014 16:44, Jasper St. Pierre <jstpie...@mecheye.net> wrote: >> >> It's a great question, with a complicated answer. Part of this is the >> fault of the DRM kernel interface, which is being improved. Part of it is >> the fault of GL/EGL, which really doesn't have proper multi-GPU support. > > Also there is a good reason Windows doesn't work with multiple graphics cards anymore that aren't from the same vendor and in the same general class of chip.
For running a wall of lots of monitors or you need multiple ATI or multiple NVIDIA cards, getting anything else to function in a rational manner isn't supported or at least wasn't last I look. Since you have a compositor running you no longer have the knowledge of on-screen clipping to say where to direct rendering, There is unfortunately no "nice" solution to this problem, under X or wayland, except making apps that are aware of the problem and use interface provided to solve it. You also have the optimus style solutions, which is run everything on one GPU and just use the other GPUs as slave outputs. Dave. _______________________________________________ wayland-devel mailing list wayland-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/wayland-devel
