> I guess that it is failing to find the old kgsl shim drm driver, which
> enabled allocation of GEM buffers for pixmaps. I know Wladimir played
> a bit with this on imx5, but I think he was just using gbm/kms and not
> x11. I guess he was using imx-drm for GEM buffer allocation?
Yes, for the a20x stuff I use the old GSL kernel driver
(forward-ported to 4.12, see
This creates a /dev/gsl_kmod, which has an interface different from
the "newer" kgsl.
And a mesa and libdrm that is patched to use this:
This fork of mesa doesn't support X11, only kms/gbm-based rendering.
All of this is very experimental.
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