> To add some context the feature that I am asking for is working DRI3 +
> present ... with mesa 10.2
> it gives us GLX_EXT_buffer_age which finally fixes tearing issues in
> mutter that some user are experiencing
> without using workarounds like forcing the compositor to always redraw
> the whole screen (which costs performance
> and battery life).
There is no working DRI3 + present anywhere at all yet, or if there is
it involves SNA which has its own set of not working.
And also DRI3 breaks a bunch of working features like gpu offload, again
DRI3 + present is a keithp feature, it works on his laptop so he shipped it.
It needs someone who cares to take over and finish development.
Dave.