https://bugzilla.kernel.org/show_bug.cgi?id=201965
Bug ID: 201965
Summary: Power off / Shutdown hangs after echoing "Reboot:
Power down" on DELL / WYSE Thin Client
Product: ACPI
Version: 2.5
Kernel Version: 4.9.0-8-amd64 #1 SMP Debian 4.9.130-2 (2018-10-27)
x86_64
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Off
Assignee: acpi_power-...@kernel-bugs.osdl.org
Reporter: sebastian...@buerotiger.de
Regression: No
Overview:
I run an up-to-date Debian 9 / Stretch (amd64) on a DELL / WYSE Thin Client
Z90D7 with AMD G-T56N CPU (1.65GHz), 4GB RAM and 16GB SSD. Except for keyboard
and mouse (both USB) no custom / additional hardware is used.
The system runs fine except for a power-off issue:
The kernel obviously is unable to power-off the machine. The OS shuts down and
everything looks fine. Even USB seems to be shutdown as keyboard and optical
mouse turn off and don't react anymore.
The last line printed is:
"Reboot: Power down"
Then the screens stays that way indefinitely. The device stays powered on and I
have to "cold-power-off" by pressing the power button for a few seconds.
Steps to reproduce:
/sbin/poweroff -p
Actual Results:
System hangs after printing "Reboot: power down" (while still showing that
console output). Then it must be powered off manually by pressing the power
button of the device for a few seconds.
Expected Results:
The system is powered off automatically without having to force a device
power-off using the power button.
Unsuccessfull solution attempts:
I have tried different solution approaches but nothing worked:
A) Kernel boot parameters:
- acpi=force
- acpi=noirq
- noapic irqpoll
- reboot=pci
- reboot=acpi
- reboot=bios
- reboot=efi
- reboot=hard,acpi,force
B) Switching to APM shutdown (kernel parameter + /etc/modules setting "apm
power_off=1")
C) Add a custom init script run at shutdown to rmmod the snd_hda_intel before
shutdown
Additional information:
/proc/cpuinfo
vendor_id : AuthenticAMD
cpu family : 20
model : 2
model name : AMD G-T56N Processor
stepping : 0
microcode : 0x5000101
cpu MHz : 1646.542
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 6
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb
rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid aperfmperf pni
monitor ssse3 cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a
misalignsse 3dnowprefetch ibs skinit wdt hw_pstate vmmcall arat npt lbrv
svm_lock nrip_save pausefilter
bugs : fxsave_leak sysret_ss_attrs null_seg spectre_v1 spectre_v2
spec_store_bypass
bogomips : 3293.08
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate
ACPI related dmesg entries:
dmesg | grep acpi
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
[ 0.263854] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[ 0.307440] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM
Segments MSI]
[ 0.308317] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER
PCIeCapability]
[ 0.308333] acpi PNP0A08:00: FADT indicates ASPM is unsupported, using BIOS
configuration
[ 0.309444] acpi PNP0A08:00: ignoring host bridge window [mem
0x000ce000-0x000cffff window] (conflicts with Video ROM [mem
0x000c0000-0x000ce1ff])
[ 0.412327] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff,
max_idle_ns: 2085701024 ns
[ 4.341600] acpi device:2d: registered as cooling_device6
Kernel version:
4.9.0-8-amd64 #1 SMP Debian 4.9.130-2 (2018-10-27) x86_64
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