I apologize if this is not the correct section of the forum, but upon a fresh install & doing pacman -Syu, with no installed packages or anything, xorg crashes. Upon rebooting, My resolution is different & I cannot send any keyboard or mouse inputs. I understand that people need to be aware in some capacity of package updates & their effects, but I don't know how to get around updating one time. What would I do to fix this? Reinstalling obviously cannot help.
So it looks like something went wild with Xorg, which can be related to your HW drivers.
Since you did not provide any more information I suggest to provide xorg and some other related logs.
Also what GPU are you using? If it is Nvidia than I wish you good luck.
I'm using Intel integrated graphics, I will have to look up how to get xorg logs on a system other than the installed one & report back.
Actually, disregard this post.