Hi, noapic is not a too sophisticated solution. Try this:
mkdir bios_sck cd bios_sck sudo acpidump -b A lot of firmware file should be appeared we need SSDT/DSDT dat files You should decompile all of them but that is impossible because of some interference between the files. This combination worked for me: iasl -da ssdt1.dat ssdt2.dat ssdt3.dat ssdt4.dat ssdt5.dat ssdt6.dat ssdt8.dat ssdt11.dat ssdt13.dat ssdt16.dat ssdt18.dat ssdt20.dat dsdt.dat Ok, you have now a lot of dsl and you should recompile them iasl -tc *.dsl If you don't get any errors then you are very lucky but you will get some. So you should fix the errors in dsl files and try to recompile them again. Warnings are not important. How can you fix the errors? I don't know. Nobody knows beside of some GURUs. They have the proper energy and knowledge to fix them. Just go to the kernel bugzilla and ask the gurus. I wish you luck son. If you are lucky enough and get what you need (you won't), came back and I will tell you what to do next. ONLY AT YOUR OWN RESPONSIBILITY! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware 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: New Status in Linux: Incomplete Status in linux package in Ubuntu: Triaged Status in linux-firmware package in Ubuntu: Confirmed 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
