Lenovo ThinkPad T450
This article covers details pertaining to installing and configuring your Arch on Lenovo Thinkpad T450 laptop.
This laptop supports UEFI as well as the traditional BIOS.
There are no issues with installing Arch Linux with the latest Archiso.
The rest of the installation process can be followed with the Installation guide.
All hardware works out of the box, except the following:
See ALSA#Set the default sound card to set the default sound card to Intel PCH (speakers and headphones).
options snd_hda_intel index=1,0
Rebinding Forward and Back Keys