Questions[bumblebee](ubuntu)

I installed a fresh version of Ubuntu 18.04 on my optimus laptop then I followed the instructions from this site to install the bumblebee package. It succeeded but I saw a line during the installation which stated that it couldn't remove the nouveau module. I did a reboot and I ran optirun --status to see if it's working and it outputted that discrete nvidia card is disable, then I tried running optirun glxgears and this error message came up.

[ERROR]Cannot access secondary GPU - error: [XORG] (EE) Failed to load module "mouse" (module does not exist, 0)

I have tried reinstalling Ubuntu and bumblebee.

I have an NVidia Geforce 940MX card.

Does Ubuntu 16.04 support hybrid graphics cards? I ask because of the support of ubuntu snappy core in Ubuntu 16.04.

I use bumblebee to start, for example a game, in better graphics quality. (optirun ./start.sh)

Link to bumblebee

Does that work with Ubuntu 16.04?

Background: I'm a 3D artist (as a hobby) and have recently started using Ubuntu 12.04 LTS as a dual-boot with Windows 7. It's running on my a fairly new 64-bit Toshiba laptop with an nVidia GeForce GT 540M GPU (graphics card). It also, however has Intel Integrated Graphics (which I suspect Ubuntu's been using).

So, when I render my 3D scenes to images on Windows, I am able to choose between using my CPU or my nVidia GPU (faster). From the 3D application, I can set the GPU to use either CUDA or OpenCL. In Ubuntu, there's no GPU option.

After doing (too much?) research on the issues with Linux and the nVidia Optimus technology, I am slightly more enlightened, but a lot more confused.

I don't care one bit about the Optimus technology, as battery life is not by any means an issue for me.

Here's my question: What can I do to be able to use CUDA-utilizing programs (such as Blender) on my nVidia GPU in Ubuntu? Will I need nVidia drivers? (I have heard they don't play nicely with Optimus setups on Linux.) Is there at least a way to use OpenCL on my GPU in Ubuntu?

I have an ASUS N53S, and I am using bumblebee. I can see it from the frame rates in Tux Racer. Some people refer to Bumblebee and some to Ironhide. What is the difference?

I'm trying to connect my external monitor (via VGA cable) to my laptop, using Bumblebee and the Optimus configuration.

I have a Lenovo W520, with an Intel GMA HD 3000 and an Nvidia Quadro 2000M. The BIOS has three options regarding the graphic cards - integrated, discrete, and Optimus.

The use case is very simple. For work, I just use the integrated card and the laptop display; when I watch movies though, I want to use my projector. Now, what I have to do in this case is:

• reboot
• start windows
• watch the movie

Thanks to Bumblebee, I'm able now to keep the setup always as Optimus.

Before BB, I had to change the BIOS setting every time I wanted to watch a movie, because even in windows, using integrated graphics caused the projector not to be detected by the system (I suppose that this is what they generally mean by "hardwired output", and that the VGA output is hardwired to the discrete card).

Now, what I'd like to do, is to be able to connect the external monitor without having to switch O/S, that is, to use it in Ubuntu.

Is it possible?

Right now, if I want to use the external monitor on Ubuntu, the only option is to change the BIOS to use the discrete graphics, then use nvidia-settings.

If I use instead the Optimus setup, even when I run it using "optirun nvidia-settings -c :8", I don't get any option for an external monitor.

Is there something I can do?