Comment 498 for bug 1776563

So to be clear. AT THIS DAY, there is still no fix for the A315-41 (without the G!!).

My config (the best result from all my tests) :
- A315-41 Ryzen5 2500U 8 cores 3600mhz
- Linux ubuntu 18.04.2
- bios 1.11 configured (I didnt go to 1.13 while it seems worst on A315-41 series...)
- 4.20 kernel
- ivrs args (rcu_nocbs=0-7 ivrs_ioapic[4]=00:14.0 ivrs_ioapic[5]=00:00.2)

it's usable with theses conditions (rarely freeze,all is working,11 ACPI tables loaded & few ACPI BIOS Errors in dmesg) but the main problem is the shitty battery drain (since day 1). (1h30 on linux, 3h on windows) even with low cpu usage (I can reach 3200mhz on stress tests):

cat /proc/cpuinfo | grep MHz
cpu MHz : 1334.217
cpu MHz : 1275.689
cpu MHz : 1282.695
cpu MHz : 1278.429
cpu MHz : 1328.024
cpu MHz : 1300.042
cpu MHz : 1480.938
cpu MHz : 1642.668

I'm using it everyday since months... never far away from my battery charger....