Thinkpad A21m

[Understudy]

Hi

I have a a21m I am loading 5.4 on. I have checked through google looking 
for references for my laptop with 5.4 or 5.x . Everything I find is a 
reference to a21p and/or 4.x series. Can someone help point me in the 
right direction to find the information on  a21 with 5.x. Looking for 
the standard stuff
xorg.conf
kernel modules.
loader.conf items
modem driver
extra buttons that exist on the keyboard
acpi or apm choice
sound driver
and anything else that could be helpful.

Sincerely,
Brendhan