DRM KMS Modesetting

[David Herrmann]

2011/11/15 Kristian Høgsberg <krh at bitplanet.net>:
> On Mon, Nov 14, 2011 at 5:54 PM, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:
>> On Mon, 14 Nov 2011 21:47:09 +0100
>> David Herrmann <dh.herrmann at googlemail.com> wrote:
>>> > I had to modify the resolution the test was searching for
>>> > to 1920x1200 instead of 1024x600 since I tested on a DP attached
>>> > monitor, and fix the connector id, but other than that it seemed to
>>> > work fine.
>>>
>>> Thanks for testing. At least my code seems right now, but I still
>>> cannot get it to work on my machine. The output of modetest is:
>>> https://gist.github.com/1365083
>>>
>>> There is only one connected connector+encoder+mode so I don't know
>>> where the problem exactly is. Are there any debug options? Is it
>>> possible to query the EGLImage for width/height?
>>
>> Ok maybe the gen3 vs gen4 EGL image code isn't calculating the
>> width/stride correctly somewhere then.  You'd have to walk through the
>> gbm_dri2.c and egl_dri2.c code and see where the width is going off
>> into the weeds.
>
> Could be, I know I've run Wayland on Pineview though, so that works at
> least.  David, did you try eglkms from mesa demos?
>
> http://cgit.freedesktop.org/mesa/demos/tree/src/egl/opengl/eglkms.c

I tried it now. I get a black screen and in the left quarter there is
one white triangle which fades to black. But again, the right 3/4 of
the screen are black.

> Kristian
>

I will try to debug my mesa package but this will probably take some
time. If someone has an idea how to find the bug faster, just tell me
;)

Regards
David