Re: [meta-raspberrypi] Has anybody run VC4 + X + recent meta/masters lately

[Trevor Woerner <twoerner@gmail.com>]

On Thu 2018-03-29 @ 11:34:08 PM, Andreas Müller wrote:
> On Thu, Mar 29, 2018 at 11:23 PM, Andreas Müller
> <schnitzeltony@gmail.com> wrote:
> > On Thu, Mar 29, 2018 at 11:05 PM, Trevor Woerner <twoerner@gmail.com> wrote:
> >> I've seen the 'Modifier 0x0 vs. tiling(0x7000000000000001) mismatch' error
> >> and blank screen hundreds of times while working on getting chromium-x11
> >> accelerated. It would happen if chromium was trying to use the system
> >> gl/gles libraries instead of the ones it builds.
> > Then you should give that patch a try - change is in mesa-megadriver
> > package (building images after mesa changes takes LONG...)

The solution was to let the two gl libraries install without interfering with
each other (i.e. to separate locations). If I didn't install the ones chromium
built, it would try to use the system ones and fail. If I installed both and
it found its own, it would succeed. So I found a solution and didn't need to
dig into this 'modifier vs tiling' issue.

Having said that, I'm curious to try your patch on rpi3-64. I have never been
able to get vc4 working on x11 with a 64-bit build (it also gives a 'modifier
vs tiling' error).

> > Some appetizer: glmark on mesa 17.1.7 reports 110 / glmark on mesa
> > 17.1.7 reports 145!

cool!