Looking at that Xorg log,
[ 8.207707] etnaviv-gpu 2204000.gpu: hw init failed: -6 << I think this is going to be an issue,
What all is required to get etnaviv going?, from what I believe its still not mainline kernel ( yet ) .. is there a patch or something in testing perhaps. If you like I have this device and would gladly go through these things also ..
Could we get a document of sorts uptogether about whats been done and or what all install steps have been done ( in full ) up to this point...
Il do some digging on etnaviv and what not to see if the module / stuff can be done out of kernel as a module ( most likely ) but I would think it has in kernel deps ...
Nige