I'm using an ASUS laptop (MUXless graphics) w/ a GT 630M (re-branded 540M) GPU and only Fedora 16 installed. I installed bumblebee and the NVIDIAdrivers using the instructions described here: http://duxyng.wordpress.com/2012/01/26/finally-working-nvidia-optimus-on-fedora-16/These instructions worked perfectly with the bumblebee service running properly between different subversion of the Linix kernel 3.3. If I load the kernel version 3.3.7 and 3.3.8 the bumblebee service will start and allow the optirun command to work. This does not happen with kernel version 3.4.2, and the bumblebee service fails to start.This issue seems to have been brought up here:https://github.com/Bumblebee-Project/bbswitch/issues/23I'm perfectly fine using the older kernels, but now I have to avoid any kernel updates. I'm wondering if anyone has any familiarity with this issue, it seems to be a rather recent one.
Bumblebee (Optimus) Service Won't Start w/ 3.4 Kernel on Fedora 16
linux;fedora;drivers;nvidia;services
1) You have to ensure the fact that this kernels are compiled with a similar set of options, aka the config file that is used to compile the kernel2) In this case, and in my experience, something can be wrong with the semaphores system or the BIOS/ACPI, at least this is the biggest suspect if you ask me.Also the BIOS and the ACPI are proprietary software so they can offer a real challenge if the manufacturer is not available to offer a better support.There is also https://launchpad.net/~mj-casalogic/+archive/ironhide/ which is a fork from Bumblebee and probably is your best option at the moment.EDIT: you can reach the source repos at https://github.com/MrMEEE/ironhide