What other custom configurations have you created? Without knowing from what documentation you got them, so we have context, things might get misinterpreted.
From what i gathered is about a Lenovo Z50-75
Difficulty: ★★☆☆☆
The introduction of Optimus laptops have created new challenges for Linux users. One of the biggest issues is having the proprietary graphics card work when the system boots. Many times the advice given is to add an Advanced Configuration and Power Interface (acpi ) kernel parameter to grub. While a specific acpi kernel parameter may be given, it is sometimes not appropriate to the hardware it is being applied to. This can cause system instability and some functions of the lap…
Have a read here about that wifi model:
Some HP laptops with the Realtek WiFi chipset card RTL8723BE have just one antenna on that card designed for two (stingy HP, anyone?). This has caused many problems for Linux users, as the default antenna is usually the missing one…
But thanks to Larry Finger and the good people at Realtek you can do some testing with a module parameter that allows for antenna selection. As follows:
a. Launch a terminal window.
b. First unload the currently active module with this command
sudo modprobe -r r…
and even tho this is older, still has some valuable information therehttps://bbs.archlinux.org/viewtopic.php?id=208472