Hi Michel,

I will have to check previous rc releases of 4.17 to see if it wasn't
already happening, before trying any possible git bisect.
As an update I can say that an AMD Radeon R7 240 works fine on the same
system with the same kernel and I am able to run the OpenCL kernels, that I
couldn't with RX 460/RX 550.

Regards,
Luís

On Thu, May 24, 2018 at 9:30 AM, Michel Dänzer <michel-otUistvHUpPR7s880joybQ@public.gmane.org> wrote:

> On 2018-05-24 12:06 AM, Luís Mendes wrote:
> > I've tried Linux 4.17-rc6 with Ubuntu 18.04 on Tyan S7002 and I am not
> even
> > able see lightdm/gdm3 as system hangs when starting X.
> > Having SR-IOV enabled or disabled makes no difference.
> > Tested with AMD RX 460.
> > When X is supposed to start the system hangs and only a rectangular
> region
> > on the top left corner screen remains with console text messages from the
> > boot process while the remaining of the screen is just black. I am unable
> > to do anything with the keyboard, switching to console does not work,
> > ctrl-alt-del also doesn't work. I've to do a cold reset.
>
> Can you isolate which change introduced this new issue with git bisect?
>
>
> --
> Earthling Michel Dänzer               |               http://www.amd.com
> Libre software enthusiast             |             Mesa and X developer
>