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.... -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1776563 Title: Acer Aspire A315 IOAPIC failure on Ubuntu 18.04, kernel hangs, can't load, kernel freeze (AMD Ryzen 5/Radeon/Raven) / AMDGPU Hybrid crash Status in amd: Fix Released Status in Linux: Incomplete Status in linux package in Ubuntu: Triaged Bug description: CPU: Ryzen 5 2500U VGA: Radeon 535 Notebook: Acer Aspire A315 This is a brand new notebook on the market with Ryzen 5/Radeon. The default kernel of Ubuntu(18.04) hangs at loading with message: tsc: Refined TSC clocksource calibration: 1996.250 MHz clocksource: tsc: mask: 0xffffffffffffffff max_cycles: (...), max_idle_ns: (...) Soft lockup Using pci=noacpi kernel parameter kernel loads without any problem but my notebook produces more heat than on Win10. If I know right Acer notebooks need ACPI to the correct power management. The same thing happens on mainline 4.17,4.18rc1-2. BIOS upgrade to the latest version: 1.08 hasn't helped This problem has been reported upstream: https://bugzilla.kernel.org/show_bug.cgi?id=200087 The latest correctly working kernel was 4.13.* but the heat problem was present with this too. To manage notifications about this bug go to: https://bugs.launchpad.net/amd/+bug/1776563/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
