MyAsus laptop had Endless OS installed and I wanted to switch to Ubuntu 18. So I followed the instructions to install Ubuntu in the machine, erasing all of the Endless OS (no dual boot). I was able to get to the bios, changed the boot order and installed Ubuntu (it went through a complete install).
For me, launch CSM support was disabled and grayed out. I tried disabling fast boot and after restarting, ubuntu booted up just fine! Thought I would share here in case other asus laptop users run into the same problem.
ASUS Linux is a suite of tools designed to improve the performance and functionality of ASUS laptops when running Linux. It comes in 2 main parts, asusctl and supergfxctl, the former interacts with the asus-wmi kernel module to control BIOS level features and the latter is used to control the dedicated GPU in dual GPU systems.
The ASUS Linux project maintains a set of kernel patches specific to ASUS mobile devices and packages them into a kernel. Typically using this kernel is not required however in some edge cases (usually for very recent laptops) all your laptop features might not function without it.
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