Questions about bbswitch, a kernel module for saving power on [tag:nvidia-optimus] laptops.

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2
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1answer
430 views

Problem installing bbswitch on Ubuntu 14.04.3

I have an Nvidia Optimus graphic card installed and have the Nvidia driver installed and working for my Intel card, but I cannot switch to the Nvidia card. This is because bbswitch-dkms will not build ...
0
votes
0answers
100 views

Discrete graphics card only detect by BBSWITCH/BBSWITCH-DKMS every OTHER boot

I am running into a very strange issue with bbswitch where the module works / fails every alternating boot. IE: If bbswitch properly detects the discrete card this boot, it will fail next boot. I ...
0
votes
1answer
48 views

Swap a module at boot

I am trying to use a version of bbswitch hacked for a T450s mentioned in this issue on bumblebee-project/bbswitch. It works well and now my Nvidia 940m card turns off properly. To install it I run ...
3
votes
1answer
203 views

Understanding bbswitch and nvidia kernel module

I have a laptop with a GTX 970M dGPU and an Intel GMA iGPU. I currently have the proprietary nvidia drivers installed (no nouveau) as well as bumblebee and bbswitch. Basically, I want the laptop to ...
0
votes
1answer
61 views

Ubuntu 14.04 LTS freezes after “bbswitch: Succesfully loaded. Discrete card 0000:01:00.0 is on”

So I've got a problem with Ubuntu 14.04 LTS start up recently. It has been freezing on purple screen. I've changed "quiet splash" to "" in /etc/default/grub to see what happens, and the last thing ...
1
vote
1answer
206 views

bbswitch failing to turn of Nvidia GPU (Refused to change power state, currently in D0)

I've noticed that my laptop has been running hotter than it should be as well as output similar to the following from dmesg around when bbswitch should be shutting down my Nvidia GPU [ 5775.721636] ...
0
votes
0answers
56 views

Accessing /proc/acpi causes freeze

I noticed this issue when trying to use Bumblebee(allows me to use the discrete GPU) on my laptop.Bumblebee uses bbswitch to switch between GPUs, bbswitch is accessed in /proc/acpi, and whanever it is ...
1
vote
1answer
3k views

How to run a program using the Nvidia card with bbswitch?

I have a Nvidia graphics card running with Nouveau drivers which I keep disabled (at boot) using bbswitch in Ubuntu 12.04. Bumblbee always kept the card on, so I uninstalled it, and installed the ...
1
vote
1answer
1k views

how to fix bumblebee after a package upgrade?

I have been having issues with bumblebee after a kernel package upgrade. It started in 12.04 and has been carried on into 13.04. Basically it is outlined as follows; after a clean install of ubuntu (...
0
votes
1answer
270 views

Ubuntu 13.04 stuck on shutdown due to bbswitch

I had this problem long ago, but it's the first time it's caused, I think, by bbswitch. First the Ubuntu logo is shown, then I get this : (the last thing written there is bbswitch: enabling ...
0
votes
1answer
815 views

Is bbswitch required for bumblebee to work properly?

I have an NVIDIA Optimus video card. I disabled it using bbswitch, and I'm using bumblebee to run programs using the discrete graphic card. I want to know what's going to happen if I remove bbswitch (...
0
votes
1answer
238 views

bbswitch does not work on ASUS A93S

I've tried the suggestions given in an earlier answer to a similar question (see elsewhere on AskUbuntu), but it does not work. Both lsmod | grep nouveau lsmod | grep bbs come up empty. I am ...
2
votes
1answer
17k views

Bumblebee : Module bbswitch could not be loaded

I've upgraded to 12.04 and I had to switch from Ironhide to the latest version of Bumblebee. Now, when I try to run bumblebeed, I get this error: FATAL: Module bbswitch not found. [ERROR]Module ...