Issue with mir on Ubuntu Touch and Samsung Galax S3 (i9300)

[Florian Leeber]

Hello All,

I am faithfully trying to port the current Ubuntu Touch vivid image to
the Samsung Galaxy S3 (i9300). Basically I have a good progress, the
phone is booting, kernel is fine, lxc container started etc...

But, again as already seen on a previous porting with an even older
device, I am stuck with graphics:

- regardless of the test I try (mir tests) I always get
libEGLvalidate_display:262 3008 (EGL_BAD_DISPLAY)
- screen stays dark (actually who is turning on and off the screen, and
where is the timer for the default screen blanking, can I disable that)

Can you help me to find out why this is happening? Basic test_egl and
test_glesv2 seem to be fine (though I cant tell for sure w/o a screen)

BR Florian