This morning (still with 4.18) pc getting hard to start, 90 seconds to boot with 23 seconds of CPU stuck... dmesg here : https://paste.ubuntu.com/p/KbywwGWRSF/ after 5/10 minutes he totally freeze so I was forced to hard reboot (power button).
I'll keep testing this 4.18.0 and if I keep getting problems, I'll retry the 4.15. there is my sensors, start since 1 min : $ sensors ath10k_hwmon-pci-0200 Adapter: PCI adapter temp1: +75.0°C amdgpu-pci-0300 Adapter: PCI adapter vddgfx: N/A vddnb: N/A fan1: N/A temp1: +44.0°C (crit = +80.0°C, hyst = +0.0°C) power1: N/A k10temp-pci-00c3 Adapter: PCI adapter Tdie: +44.9°C (high = +70.0°C) Tctl: +44.9°C -- 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