Vendor ID: AuthenticAMD CPU family: 23 Model: 17 Model name: AMD Ryzen 5 2500U with Radeon Vega Mobile Gfx Stepping: 0 CPU MHz: 1402.460 CPU max MHz: 2000,0000 CPU min MHz: 1600,0000 BogoMIPS: 3992.22 Virtualization: AMD-V
acpitool -c ű CPU type : AMD Ryzen 5 2500U with Radeon Vega Mobile Gfx Min/Max frequency : 1600/2000 MHz Current frequency : 1466 MHz Frequency governor : ondemand Freq. scaling driver : acpi-cpufreq Cache size : 1466.690 KB Bogomips : 3992.22 Bogomips : 3992.22 Bogomips : 3992.22 Bogomips : 3992.22 Bogomips : 3992.22 Bogomips : 3992.22 Bogomips : 3992.22 Bogomips : 3992.22 Function Show_CPU_Info : could not read directory /proc/acpi/processor/ Make sure your kernel has ACPI processor support enabled. cpufreq: CPU frequency scaling tests. -------------------------------------------------------------------------------- Test 1 of 7: CPU frequency table consistency PASSED: Test 1, CPU frequency tables are consistent Test 2 of 7: CPU frequency table duplicates PASSED: Test 2, No duplicates in CPU frequency table Test 3 of 7: CPU frequency firmware limits PASSED: Test 3, CPU BIOS limit OK Test 4 of 7: CPU frequency claimed maximum PASSED: Test 4, CPU max frequencies OK Test 5 of 7: CPU frequency SW_ANY control PASSED: Test 5, P-state coordination under hardware control. Test 6 of 7: CPU frequency SW_ALL control PASSED: Test 6, Firmware SW_ALL OK Test 7 of 7: CPU frequency performance tests. PASSED: Test 7, CPU performance scaling OK maxfreq: Test max CPU frequencies against max scaling frequency. -------------------------------------------------------------------------------- Test 1 of 1: Maximum CPU frequency test. This test checks the maximum CPU frequency as detected by the kernel for each CPU against maxiumum frequency as specified by the BIOS frequency scaling settings. SKIPPED: Test 1, Cannot read CPU frequencies from /proc/cpuinfo, this generally happens on AMD CPUs, skipping test. -- 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: Fix Released 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
