doing what Felix proposed at #16 didn't work on natty (2.6.38-8-generic): # echo 1 > /sys/module/i915/parameters/semaphores -bash: echo: write error: Invalid argument
However, doing what proposed on #18 solved the problem.
XPS L502X with optimus/bumblebee working
doing what Felix proposed at #16 didn't work on natty (2.6.38-8-generic): i915/parameters /semaphores
# echo 1 > /sys/module/
-bash: echo: write error: Invalid argument
However, doing what proposed on #18 solved the problem.
XPS L502X with optimus/bumblebee working