[meta-freescale] EtnaViv and i.MX6Q

[Otavio Salvador]

Hello Teemu,

On Tue, Nov 21, 2017 at 4:16 AM, Keskinarkaus, Teemu
<teemu.keskinarkaus at crosscontrol.com> wrote:
> We have custom i.MX6Q based HW and I’ve been trying to get graphics working
> with Etnaviv driver so I could get Weston 2.0 up and running.

It won't. Etnaviv requires Weston 3.0.

> I’m using Yocto 2.3 and have MACHINEOVERRIDES in local.conf so kernel
> linux-fslc-4.9 is built with Etnaviv driver in it.

Please focus on 2.4 as it has newer versions of mesa and libdrm.

> I’ve used NXP Beta-branch to test their linux 4.9.11 – kernel so I’ve been
> able to update/test device tree with 4.9-series kernel and there the kernel
> outputs picture just fine. (Of course Weston 2.0 doesn’t work with it, but
> that was expected. Linux outputs the logos at startup so that way I knew
> display was configured ok).
>
> If I then build Etnaviv – version the system starts okay and it seems
> Etnaviv driver is also loaded without any errors. Problem is that no picture
> is displayed on screen. It stays completely white ie. screen has no output
> at all.

You must have the display set in the device tree.

-- 
Otavio Salvador                             O.S. Systems
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