Bumblebee stopped working on my system after upgrading to stable version of Ubuntu 14.04.
DUring installation I get this error rmmod: ERROR: Module nouveau is in use
Setting up bumblebee (3.2.1-90~trustyppa1) ...
Selecting 01:00:0 as discrete nvidia card. If this is incorrect,
edit the BusID line in /etc/bumblebee/xorg.conf.nouveau .
bumblebeed start/running, process 11133
Processing triggers for initramfs-tools (0.103ubuntu4.1) ...
update-initramfs: Generating /boot/initrd.img-3.14.1-031401-generic
Setting up bumblebee-nvidia (3.2.1-90~trustyppa1) ...
Selecting 01:00:0 as discrete nvidia card. If this is incorrect,
edit the BusID line in /etc/bumblebee/xorg.conf.nvidia
rmmod: ERROR: Module nouveau is in use
bumblebeed start/running, process 18284
It says nouveau is in use. I checked the loaded modules
lsmod | grep nouveau
nouveau 1097199 1
mxm_wmi 13021 1 nouveau
ttm 85115 1 nouveau
i2c_algo_bit 13413 2 i915,nouveau
drm_kms_helper 52758 2 i915,nouveau
drm 302817 7 ttm,i915,drm_kms_helper,nouveau
wmi 19177 3 dell_wmi,mxm_wmi,nouveau
video 19476 2 i915,nouveau
However, I have nouveau in my blacklist
cat /etc/modprobe.d/blacklist.conf | grep nouveau
blacklist nouveau
blacklist lbm-nouveau
alias nouveau off
alias lbm-nouveau off
My grub is also set to nomodeset
cat /etc/default/grub | grep nomodeset
GRUB_CMDLINE_LINUX_DEFAULT="nomodeset quiet splash"
My graphics card is nvidia optimus
lspci | grep -i vga
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 18)
01:00.0 VGA compatible controller: NVIDIA Corporation GT218M [GeForce 310M] (rev ff)
I've raised a bug in launchpad: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1327598
Note: Nvidia-prime is working for me (partially). Frequent mouse locks. Interestingly, bumblebee works perfectly fine on my fedora 20 partition on this same laptop.
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