(In reply to comment #28)
> What does "sa_manager is not empty, clearing anyway" mean ? Can it create
> gpu lock up ?

No, I think that's just an artifact of the attempt to reset the GPU.

(In reply to comment #29)
> Sometimes when I run ./egltri_screen I have a shaded triangle, that doesnt
> move, it looks like the first frame is correctly processed.

egltri only renders one frame. :)

(In reply to comment #32)
> I have the firmware from fedora 20, I think they are newer than what was
> used for initial hawaii bring up [...]

Trying older firmware is worth a shot I guess, though not very likely to make a
difference I'm afraid.