Bug#756522: bumblebee-nvidia: cannot access secondary gpu - error: Permission denied

Package: bumblebee Version: 3.2.1-7 Followup-For: Bug #756522 Dear Maintainer, I installed bumblebee and primus packages, not bumblebee-nvidia. But I get the exact same issues and logs than described here. See stuff below. I understood (is it correct ?) that we can use bumblebee with nouveau

Bug#766781: pavucontrol: Input volume cannot be more than 39%

Package: pavucontrol Version: 2.0-2 Severity: normal Dear Maintainer, When using my laptop microphone (built-in or through a jack) the sound was very low. I tried to tune it through pavucontrol and couldn't. I tried to fix it through alsamixer without success. At last there was no more sound. I