Comment 9 for bug 748320

Because we do not yet officially support hybrid graphics in Ubuntu (esp. involving the proprietary drivers), I do not think it is time effective for you to continue testing this particular hardware configuration. I would suggest instead manually switching off the intel device (how to do this varies by hardware vendor; some you can do it in bios, others have a toggle switch, others need kernel tweaks or busid settings... google around a bit and you should find some docs, or ask on askubuntu.com), and then test -nvidia in isolation.

Thanks again for providing such a well written test report. I hate that this is probably not the news you hoped to hear, but at least I can say the need for better hybrid graphics switching support is very widely and well known, and I'm hopeful in a release or two we'll start to see better support for it.