<div dir="ltr"><div><div><div>Hi Fabio,<br><br></div>Yes, the problem does also happen at least with Vanilla kernels 4.12.5, 4.12.8 and 4.13-rc6.<br></div>I've just compiled and tested with those kernels.<br></div><div><br></div><div>These kernels also show an additional issue which results in complete image corruption right from kernel boot and before loading etnaviv kernel module, as well as after loading X and etnaviv module.</div><div>Despite the complete image corruption, I was able to login into X by entering the user password. During the log in and X session start the system log also shows similar MMU errors.<br></div><div><br></div><div>Please see attached PDF with screenshots detailing the observed image corruptions.<br></div><div>All these reported problems only happen on i.MX6 Quad Plus.</div><div><br></div><div>Regards,</div><div>Luís<br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Aug 23, 2017 at 1:20 AM, Fabio Estevam <span dir="ltr"><<a href="mailto:festevam@gmail.com" target="_blank">festevam@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Luís,<br>
<span class=""><br>
On Mon, Aug 21, 2017 at 9:05 AM, Luís Mendes <<a href="mailto:luis.p.mendes@gmail.com">luis.p.mendes@gmail.com</a>> wrote:<br>
> Hi,<br>
><br>
> I'm a software and hardware engineer and I would like to help fix this<br>
> issue. I'm however not acquainted with Open GL nor with Vivante GPUs, thus<br>
> some guidelines would be welcome.<br>
><br>
> Problem details:<br>
> This issue appears when I login into Ubuntu Mate 17.04. I'm using kernel<br>
> 4.11.12 with Etnaviv drivers, libdrm 2.4.82 and mesa 17.2.0 RC4.<br>
<br>
</span>Do you also get the errors if you use kernel 4.12.8 or 4.13-rc6?<br>
</blockquote></div><br></div>