Comment 9 for bug 1310023

Have a similar problem.

After debugging the prime-select code I noticed the alternatives found are both 'mesa'
and this leeds the code to return either unknown" when doing a query
or "Error: alternatives are not set up properly" when trying to select either nvidia or intel.

I attached the result of "/usr/bin/update-alternatives --query x86_64-linux-gnu_gl_conf" hope that
it helps in getting a solution to the problem.