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使用电池供电时连接耳机时系统会崩溃。 （Linux 薄荷 18）

tag-icon • tag-icon linux linux-mint audio crash
使用电池供电时连接耳机时系统会崩溃。 （Linux 薄荷 18）

使用 Mint 电池供电时，如果我将耳机连接到耳机插孔，系统会立即崩溃并关闭。不过，当我在充电模式下使用 Mint 时，这种情况不会发生。另外，如果在系统启动之前连接耳机，Mint 将无法识别它们，并且为了使用它们，需要在 Mint 运行时重新连接耳机。

这是我的系统信息：

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: [email protected]
       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

浏览我的syslogs这里是我发现的：

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

这是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耳机连接并工作时的情况：

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，我无法解码并查明此错误的确切原因，这肯定是由于在电池模式下连接耳机导致意外关闭/停止而引起的。我还检查了 4.4、4.8 和 4.10，这些内核版本都没有解决该问题。

答案1

因此，禁用 tlp 中的省电选项似乎对我有用。全部TLP设置存储在配置文件中/etc/default/tlp。默认配置提供开箱即用的优化节能功能。一些高级功能（例如关闭光驱和电池阈值）需要明确激活。以 _BAT 结尾的参数在使用电池运行时有效。

禁用音频省电模式。音频省电模式的超时（以秒为单位）（支持 Intel HDA、AC97）。值为 0 将禁用节能功能。

SOUND_POWER_SAVE_ON_BAT=0

然后重新启动 tlp 服务：sudo service tlp restart

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

这应该适用于 Ubuntu 14.04、16.04 和 16.10；以及 Linux Mint 17 和 18。

答案2

我查遍了整个互联网，发现这样的问题（mce错误）困扰着不高兴的kabylake处理器的所有者。我有笔记本电脑 Dell Vostro 15 5568，也有同样的问题。

uname -a
Linux station 4.9.16-gentoo #55 SMP Thu May 4 21:52:33 MSK 2017 x86_64 Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz GenuineIntel GNU/Linux

我的麦克日志：

mcelog --cpu kabylake

Hardware event. This is not a software error.
MCE 0
CPU 0 BANK 6 
MISC 43880018086 ADDR fef1ce80 
TIME 1493934959 Fri May  5 00:55:59 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 ee0000000040110a MCGSTATUS 0
MCGCAP c08 APICID 0 SOCKETID 0 
PPIN ee0000000040110a
CPUID Vendor Intel Family 6 Model 142
Hardware event. This is not a software error.
MCE 1
CPU 0 BANK 7 
MISC 7880018086 ADDR fef1ce40 
TIME 1493934959 Fri May  5 00:55:59 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 ee0000000040110a MCGSTATUS 0
MCGCAP c08 APICID 0 SOCKETID 0 
CPUID Vendor Intel Family 6 Model 142

当我观看视频时，内部键盘有时会冻结一段时间，在此期间我可以使用触摸板移动光标，但无法单击。连接外部 USB 鼠标只会有帮助。当最后一个耳机使用电池电源时，我在将耳机连接到笔记本电脑时遇到了类似的问题。发生这种情况是因为我们的音频硬件无法正确切换到省电模式。我发现的唯一解决方法这里。您应该将参数更改INTEL_AUDIO_POWERSAVE为falsein file /usr/lib/pm-utils/power.d/intel-audio-powersave。

我猜想与 kabylake 有关系，希望他们尽快检查并解决问题。

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