Hi!
I used the clutk branch at
https://code.launchpad.net/~unity-team/clutk/gles-support
and packages from ppa:asac/armel1 for clutter, clutter-gtk etc
I tested test-clutk, test-clutk-perf, test-clutk-text with both mesa
software rendering and the hw accel. sgx drivers and the results were
similar. In both cases some effects could not be used because of lack
of "FBO and assembly shader program capabiltities".
The only difference was that sgx was much faster but the text was not
rendered correctly (it had boxes instead of letters but no related error
message).
The test-clutk program crashed in the effect-animation test (logs:
test-clutk.mesa.log, test-clutk.sgx.log). After commenting out the
effect-animation test from test-clutk.c I got logs
test-clutk.no-effect-animation.sgx.log,
test-clutk.no-effect-animation.mesa.log that have a crash at the end.
I can replicate this on my amd64 desktop using the same branch and libraries mentioned above.