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this post was submitted on 20 Dec 2024
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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He's referring to a hardware mux. Essentially, it's hardware that will bypass your iGPU and directly use your dGPU. It's more expensive to find laptops with hardware muxes, but they perform a bit better because output isn't being routed through the iGPU first.
The downside of a hardware mux is that you have to switch between the dGPU and iGPU in your UEFI. This means you need to restart the computer every time you want to change which GPU you're using. The dGPU will result in better performance at the cost of battery life.
Odds are your laptop does not have a hardware mux and you will need to go through the standard optimus setup for your distro. Some distros make this easy with their own tools, like Linux Mint and Manjaro.