I am building the Vulkan driver over here from source on 15.10. It seems to work for a couple of simple examples so far but there is a mention that it requires DRI3 to be enabled here: "The intel driver needs DRI3, so either enable it via xorg.conf, or remove intel_drv.so and use the modesetting driver instead". I don't know how to do that.
I did try and add an
/etc/X11/xorg.conf with this section:
Section "Device" Identifier "Intel Graphics" Driver "intel" Option "DRI" "3" EndSection
but on reboot my
/var/log/Xorg.0.log has no reference to DRI3, and several to DRI2:
[ 4.059] (II) glamor: EGL version 1.4 (DRI2): [ 4.064] (II) Loading sub module "dri2" [ 4.064] (II) LoadModule: "dri2" [ 4.064] (II) Module "dri2" already built-in [ 4.169] (II) modeset(0): [DRI2] Setup complete [ 4.169] (II) modeset(0): [DRI2] DRI driver: i965 [ 4.169] (II) modeset(0): [DRI2] VDPAU driver: i965 [ 4.180] (II) GLX: Initialized DRI2 GL provider for screen 0
Any help would be appreciated.