在電池供電的情況下連接耳機時系統崩潰。(Linux Mint 18)

在電池電源上使用 Mint 時，如果我將耳機連接到耳機插孔中，系統會立即崩潰並關閉。雖然，當我在充電模式下使用 Mint 時不會發生這種情況。此外，如果在系統啟動之前連接耳機，Mint 無法辨識它們，為了使用它們，需要在 Mint 執行時重新連接耳機。

這是我的系統資訊：

System:    Host: Felix-Mint Kernel: 4.4.0-53-generic x86_64 (64 bit gcc: 5.4.0)
      Desktop: Cinnamon 3.2.7 (Gtk 3.18.9-1ubuntu3.1)
      Distro: Linux Mint 18.1 Serena 
Machine:   System: Dell (portable) product: Inspiron 7560
      Mobo: Dell model: 07PJP0 v: A00
      Bios: Dell v: 1.0.8 date: 12/01/2016
CPU:       Dual core Intel Core i7-7500U (-HT-MCP-) cache: 4096 KB
      flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 11615
      clock speeds: max: 2701 MHz 1: 700 MHz 2: 1500 MHz 3: 600 MHz
      4: 600 MHz
Graphics:  Card-1: Intel Device 5916 bus-ID: 00:02.0
      Card-2: NVIDIA GM108M [GeForce 940MX] bus-ID: 01:00.0
      Display Server: X.Org 1.18.4 drivers: intel (unloaded: fbdev,vesa)
      Resolution: 1920x1080@59.98hz
      GLX Renderer: Mesa DRI Intel Kabylake GT2
      GLX Version: 3.0 Mesa 11.2.0 Direct Rendering: Yes
Audio:     Card Intel Device 9d71 driver: snd_hda_intel bus-ID: 00:1f.3
      Sound: Advanced Linux Sound Architecture v: k4.4.0-53-generic

通過我的syslogs這裡是我發現的：

Mar 14 18:19:01 Felix-Mint kernel: [  299.826425] mce: [Hardware Error]: Machine check events logged

這是mcelog：

mcelog: failed to prefill DIMM database from DMI data
mcelog: Family 6 Model 8e CPU: only decoding architectural errors
Hardware event. This is not a software error.
MCE 0
CPU 0 BANK 6 
MISC 43880018086 ADDR fef1ce80 
TIME 1489495442 Tue Mar 14 18:14:02 2017
MCG status:
MCi status:
Error overflow
Uncorrected error
MCi_MISC register valid
MCi_ADDR register valid
Processor context corrupt
MCA: corrected filtering (some unreported errors in same region)
Generic CACHE Level-2 Generic Error
STATUS ee2000000040110a MCGSTATUS 0
MCGCAP c08 APICID 0 SOCKETID 0 
CPUID Vendor Intel Family 6 Model 142
mcelog: Family 6 Model 8e CPU: only decoding architectural errors
Hardware event. This is not a software error.
MCE 1
CPU 0 BANK 7 
MISC 7880018086 ADDR fef1ce40 
TIME 1489495442 Tue Mar 14 18:14:02 2017
MCG status:
MCi status:
Error overflow
Uncorrected error
MCi_MISC register valid
MCi_ADDR register valid
Processor context corrupt
MCA: corrected filtering (some unreported errors in same region)
Generic CACHE Level-2 Generic Error
STATUS ee2000000040110a MCGSTATUS 0
MCGCAP c08 APICID 0 SOCKETID 0 
CPUID Vendor Intel Family 6 Model 142

以下是syslogs耳機連接並正常工作的時間：

Apr 30 16:20:58 Felix-Mint kernel: [   16.819396] snd_hda_intel 0000:00:1f.3: enabling device (0000 -> 0002)
Apr 30 16:20:58 Felix-Mint kernel: [   16.819555] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
Apr 30 16:20:58 Felix-Mint kernel: [   16.845900] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
Apr 30 16:20:58 Felix-Mint kernel: [   16.909215] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC3246: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker
Apr 30 16:20:58 Felix-Mint kernel: [   16.909217] snd_hda_codec_realtek hdaudioC0D0:    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
Apr 30 16:20:58 Felix-Mint kernel: [   16.909217] snd_hda_codec_realtek hdaudioC0D0:    hp_outs=1 (0x21/0x0/0x0/0x0/0x0)
Apr 30 16:20:58 Felix-Mint kernel: [   16.909218] snd_hda_codec_realtek hdaudioC0D0:    mono: mono_out=0x0
Apr 30 16:20:58 Felix-Mint kernel: [   16.909218] snd_hda_codec_realtek hdaudioC0D0:    inputs:
Apr 30 16:20:58 Felix-Mint kernel: [   16.909219] snd_hda_codec_realtek hdaudioC0D0:      Headset Mic=0x19
Apr 30 16:20:58 Felix-Mint kernel: [   16.909220] snd_hda_codec_realtek hdaudioC0D0:      Headphone Mic=0x1a
Apr 30 16:20:58 Felix-Mint kernel: [   16.909221] snd_hda_codec_realtek hdaudioC0D0:      Internal Mic=0x12
Apr 30 16:20:58 Felix-Mint kernel: [   17.139462] intel_rapl: Found RAPL domain package
Apr 30 16:20:58 Felix-Mint kernel: [   17.139464] intel_rapl: Found RAPL domain core
Apr 30 16:20:58 Felix-Mint kernel: [   17.139466] intel_rapl: Found RAPL domain uncore
Apr 30 16:20:58 Felix-Mint kernel: [   17.139468] intel_rapl: Found RAPL domain dram
Apr 30 16:20:58 Felix-Mint kernel: [   17.244470] dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)
Apr 30 16:20:58 Felix-Mint kernel: [   17.300464] input: HDA Intel PCH Headphone Mic as /devices/pci0000:00/0000:00:1f.3/sound/card0/input10
Apr 30 16:20:58 Felix-Mint kernel: [   17.300516] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input11
Apr 30 16:20:58 Felix-Mint kernel: [   17.300564] input: HDA Intel PCH HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input12
Apr 30 16:20:58 Felix-Mint kernel: [   17.300609] input: HDA Intel PCH HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input13
Apr 30 16:20:58 Felix-Mint kernel: [   17.437597] media: Linux media interface: v0.10
Apr 30 16:20:58 Felix-Mint kernel: [   17.462276] Linux video capture interface: v2.00

因此，我無法解碼並查明此錯誤的確切原因，這肯定是由於在電池模式下連接耳機導致此意外關機/停止造成的。我還檢查了 4.4 和 4.8 和 4.10，這些核心版本都沒有解決問題。

因此，禁用 tlp 中的省電選項似乎對我有用。所有TLP設置都儲存在配置文件/etc/default/tlp中。預設配置提供開箱即用的優化節能。需要明確啟動一些高級功能，例如關閉光碟機和電池門檻值。以_BAT 結尾的參數在電池執行時有效。

禁用音頻省電模式。音頻省電模式的超時（以秒為單位）（支持 Intel HDA、AC97）。值 0 禁用節能。

SOUND_POWER_SAVE_ON_BAT=0

然後重啟 tlp 服務：sudo service tlp restart

來源： http: //linrunner.de/en/tlp/docs/tlp-configuration.html#audio

這應該適用於 Ubuntu 14.04、16.04 和 16.10；以及 Linux Mint 17 和 18。

引用自：https://unix.stackexchange.com/questions/362251