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#1 2021-08-02 11:48:12

Tyskr
Member
Registered: 2019-12-11
Posts: 67

[SOLVED] Fn Mute Key is locked (Thinkpad X1 Carbon 6th Gen)

Hey guys,

currently, on my Thinkpad X1 Carbon 6th Gen, there is no sound. The Fn-Key is locked and I can't seem to unlock it. The LED is on permanently.
I can switch it on and off in the UEFI Firmware Settings.

dmesg | grep -i think

990:[    7.840684] thinkpad_acpi: ThinkPad ACPI Extras v0.26
991:[    7.840687] thinkpad_acpi: http://ibm-acpi.sf.net/
992:[    7.840688] thinkpad_acpi: ThinkPad BIOS N23ET68W (1.43 ), EC N23HT33W
993:[    7.840688] thinkpad_acpi: Lenovo ThinkPad X1 Carbon 6th, model 20KHCTO1WW
994:[    7.841149] thinkpad_acpi: radio switch found; radios are enabled
995:[    7.841406] thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver
996:[    7.841407] thinkpad_acpi: Disabling thinkpad-acpi brightness events by default...
998:[    7.844314] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked
999:[    7.845422] thinkpad_acpi: rfkill switch tpacpi_wwan_sw: radio is unblocked
1000:[    7.859159] thinkpad_acpi: battery 1 registered (start 0, stop 100)
1001:[    7.859166] ACPI: battery: new extension: ThinkPad Battery Extension
1002:[    7.860997] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input6
xev -event keyboard

does work, I get a response for every single key.

For the Fn key (on the bottom left) I get:

KeyPress event, serial 28, synthetic NO, window 0x1400001,
    root 0x1a2, subw 0x0, time 366659, (242,847), root:(1524,849),
    state 0x0, keycode 151 (keysym 0x1008ff2b, XF86WakeUp), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 28, synthetic NO, window 0x1400001,
    root 0x1a2, subw 0x0, time 366669, (242,847), root:(1524,849),
    state 0x0, keycode 151 (keysym 0x1008ff2b, XF86WakeUp), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

For the F1 key I get:

KeymapNotify event, serial 28, synthetic NO, window 0x0,
    keys:  4294967202 0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   
           0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   0  
lsmod | grep think 

98:thinkpad_acpi         131072  0
100:platform_profile       16384  1 thinkpad_acpi
102:ledtrig_audio          16384  3 snd_ctl_led,snd_hda_codec_generic,thinkpad_acpi
103:rfkill                 32768  6 bluetooth,thinkpad_acpi,cfg80211
104:snd                   114688  18 snd_ctl_led,snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_compress,thinkpad_acpi,snd_soc_core,snd_pcm
109:video                  57344  2 thinkpad_acpi,i915

Is there anything I can do to resolve this? I'm still an Arch noob, would appreciate any help from you guys.

Last edited by Tyskr (2021-08-04 20:47:52)

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#2 2021-08-02 13:10:22

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 76,086

Re: [SOLVED] Fn Mute Key is locked (Thinkpad X1 Carbon 6th Gen)

The "F1" output (likely along the Fn key?) indicates a passiv grab on the key (ie. a global shortcut) - it's likely bound to some™ action, but that doesn't toggle the mute.
What's the output of "amixer" and your complete system journal (sudo journalctl -b) and "lspci"?

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#3 2021-08-03 08:22:20

Tyskr
Member
Registered: 2019-12-11
Posts: 67

Re: [SOLVED] Fn Mute Key is locked (Thinkpad X1 Carbon 6th Gen)

seth wrote:

What's the output of "amixer" and your complete system journal (sudo journalctl -b) and "lspci"?

amixer     
zsh: command not found: amixer
lspci

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 08)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 08)
00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
00:16.3 Serial controller: Intel Corporation Sunrise Point-LP Active Management Technology - SOL (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #1 (rev f1)
00:1c.2 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #3 (rev f1)
00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1)
00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point LPC Controller/eSPI Controller (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (4) I219-LM (rev 21)
02:00.0 Network controller: Intel Corporation Wireless 8265 / 8275 (rev 78)
03:00.0 Wireless controller [0d40]: Intel Corporation XMM7360 LTE Advanced Modem (rev 01)
04:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981/PM983
05:00.0 PCI bridge: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C step) [Alpine Ridge 4C 2016] (rev 02)
06:00.0 PCI bridge: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C step) [Alpine Ridge 4C 2016] (rev 02)
06:01.0 PCI bridge: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C step) [Alpine Ridge 4C 2016] (rev 02)
06:02.0 PCI bridge: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C step) [Alpine Ridge 4C 2016] (rev 02)
06:04.0 PCI bridge: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C step) [Alpine Ridge 4C 2016] (rev 02)
07:00.0 System peripheral: Intel Corporation JHL6540 Thunderbolt 3 NHI (C step) [Alpine Ridge 4C 2016] (rev 02)
3b:00.0 USB controller: Intel Corporation JHL6540 Thunderbolt 3 USB Controller (C step) [Alpine Ridge 4C 2016] (rev 02)

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#4 2021-08-03 11:46:21

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 76,086

Re: [SOLVED] Fn Mute Key is locked (Thinkpad X1 Carbon 6th Gen)

zsh: command not found: amixer

Did you consider just installing it? (It's in alsa-utils…)
We also still lack the journal.

From the HW, check https://bbs.archlinux.org/viewtopic.php … 8#p1966178

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#5 2021-08-03 13:53:29

Tyskr
Member
Registered: 2019-12-11
Posts: 67

Re: [SOLVED] Fn Mute Key is locked (Thinkpad X1 Carbon 6th Gen)

seth wrote:

zsh: command not found: amixer

Did you consider just installing it? (It's in alsa-utils…)
We also still lack the journal.

From the HW, check https://bbs.archlinux.org/viewtopic.php … 8#p1966178

➜  ~ amixer
Simple mixer control 'Master',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 65536
  Mono:
  Front Left: Playback 65536 [100%] [on]
  Front Right: Playback 65536 [100%] [on]
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch cswitch-joined
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 65536
  Front Left: Capture 20726 [32%] [on]
  Front Right: Capture 20726 [32%] [on]

Sorry, the journal:

-- Journal begins at Wed 2020-04-29 12:03:48 CEST, ends at Tue 2021-08-03 15:53:24 CEST. --
Aug 02 13:39:46 Azathoth kernel: microcode: microcode updated early to revision 0xea, date = 2021-01-06
Aug 02 13:39:46 Azathoth kernel: Linux version 5.13.7-arch1-1 (linux@archlinux) (gcc (GCC) 11.1.0, GNU ld (GNU Binutils) 2.36.1) #1 SMP PREEMPT Sat, 31 Jul 2021 13:18:52 +0000
Aug 02 13:39:46 Azathoth kernel: Command line: BOOT_IMAGE=/vmlinuz-linux root=/dev/mapper/volgroup0-lv_root rw loglevel=3 cryptdevice=/dev/nvme0n1p3:volgroup0:allow-discards rd.udev.log_priority=3 vt.global_cursor_default=0 i915.en>
Aug 02 13:39:46 Azathoth kernel: x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
Aug 02 13:39:46 Azathoth kernel: x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
Aug 02 13:39:46 Azathoth kernel: x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
Aug 02 13:39:46 Azathoth kernel: x86/fpu: Supporting XSAVE feature 0x008: 'MPX bounds registers'
Aug 02 13:39:46 Azathoth kernel: x86/fpu: Supporting XSAVE feature 0x010: 'MPX CSR'
Aug 02 13:39:46 Azathoth kernel: x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
Aug 02 13:39:46 Azathoth kernel: x86/fpu: xstate_offset[3]:  832, xstate_sizes[3]:   64
Aug 02 13:39:46 Azathoth kernel: x86/fpu: xstate_offset[4]:  896, xstate_sizes[4]:   64
Aug 02 13:39:46 Azathoth kernel: x86/fpu: Enabled xstate features 0x1f, context size is 960 bytes, using 'compacted' format.
Aug 02 13:39:46 Azathoth kernel: BIOS-provided physical RAM map:
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x0000000000000000-0x0000000000057fff] usable
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x0000000000058000-0x0000000000058fff] reserved
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x0000000000059000-0x000000000009cfff] usable
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x000000000009d000-0x00000000000fffff] reserved
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x0000000000100000-0x000000003fffffff] usable
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x0000000040000000-0x00000000403fffff] reserved
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x0000000040400000-0x0000000045462fff] usable
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x0000000045463000-0x0000000045463fff] ACPI NVS
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x0000000045464000-0x0000000045464fff] reserved
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x0000000045465000-0x000000004edc5fff] usable
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x000000004edc6000-0x000000004ee94fff] type 20
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x000000004ee95000-0x000000004ff1afff] reserved
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x000000004ff1b000-0x000000004ff99fff] ACPI NVS
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x000000004ff9a000-0x000000004fffefff] ACPI data
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x000000004ffff000-0x000000004fffffff] usable
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x0000000050000000-0x0000000057ffffff] reserved
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x0000000058600000-0x000000005c7fffff] reserved
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x00000000f0000000-0x00000000f7ffffff] reserved
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x00000000fe010000-0x00000000fe010fff] reserved
Aug 02 13:39:46 Azathoth kernel: BIOS-e820: [mem 0x0000000100000000-0x00000004a17fffff] usable
Aug 02 13:39:46 Azathoth kernel: NX (Execute Disable) protection: active
Aug 02 13:39:46 Azathoth kernel: efi: EFI v2.50 by Lenovo
Aug 02 13:39:46 Azathoth kernel: efi: TPMFinalLog=0x4ff92000 SMBIOS=0x4f059000 SMBIOS 3.0=0x4f056000 ACPI=0x4fffe000 ACPI 2.0=0x4fffe014 MEMATTR=0x49c4b018 
Aug 02 13:39:46 Azathoth kernel: SMBIOS 3.0.0 present.
Aug 02 13:39:46 Azathoth kernel: DMI: LENOVO 20KHCTO1WW/20KHCTO1WW, BIOS N23ET68W (1.43 ) 10/16/2019
Aug 02 13:39:46 Azathoth kernel: tsc: Detected 1900.000 MHz processor
Aug 02 13:39:46 Azathoth kernel: tsc: Detected 1899.950 MHz TSC
Aug 02 13:39:46 Azathoth kernel: e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
Aug 02 13:39:46 Azathoth kernel: e820: remove [mem 0x000a0000-0x000fffff] usable
Aug 02 13:39:46 Azathoth kernel: last_pfn = 0x4a1800 max_arch_pfn = 0x400000000
Aug 02 13:39:46 Azathoth kernel: x86/PAT: Configuration [0-7]: WB  WC  UC- UC  WB  WP  UC- WT  
Aug 02 13:39:46 Azathoth kernel: last_pfn = 0x50000 max_arch_pfn = 0x400000000
Aug 02 13:39:46 Azathoth kernel: Using GB pages for direct mapping
Aug 02 13:39:46 Azathoth kernel: Secure boot could not be determined
Aug 02 13:39:46 Azathoth kernel: RAMDISK: [mem 0x34d2f000-0x3668efff]
Aug 02 13:39:46 Azathoth kernel: ACPI: Early table checksum verification disabled
Aug 02 13:39:46 Azathoth kernel: ACPI: RSDP 0x000000004FFFE014 000024 (v02 LENOVO)
Aug 02 13:39:46 Azathoth kernel: ACPI: XSDT 0x000000004FFB2188 00012C (v01 LENOVO TP-N23   00001430 PTEC 00000002)
Aug 02 13:39:46 Azathoth kernel: ACPI: FACP 0x000000004FFEB000 0000F4 (v05 LENOVO TP-N23   00001430 PTEC 00000002)
Aug 02 13:39:46 Azathoth kernel: ACPI: DSDT 0x000000004FFC0000 026DC4 (v02 LENOVO SKL      00000000 INTL 20160527)
Aug 02 13:39:46 Azathoth kernel: ACPI: FACS 0x000000004FF3D000 000040
Aug 02 13:39:46 Azathoth kernel: ACPI: SSDT 0x000000004FFF3000 0099B2 (v02 LENOVO DptfTabl 00001000 INTL 20160527)
Aug 02 13:39:46 Azathoth kernel: ACPI: SSDT 0x000000004FFF2000 0003DB (v02 LENOVO Tpm2Tabl 00001000 INTL 20160527)

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#6 2021-08-03 13:56:54

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 76,086

Re: [SOLVED] Fn Mute Key is locked (Thinkpad X1 Carbon 6th Gen)

That's only the useless head of the journal, copied out of the pager.
See the 1st link below but first make sure to check the link I posted in #4

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#7 2021-08-03 14:38:02

Tyskr
Member
Registered: 2019-12-11
Posts: 67

Re: [SOLVED] Fn Mute Key is locked (Thinkpad X1 Carbon 6th Gen)

I created 

/etc/modprobe.d/inteldsp.conf

with

options snd-intel-dspcfg dsp_driver=1

in it.
Now the LED is off, but there is still no sound. Is that what the thread was trying to tell me?

complete journalctl:
http://ix.io/3uTb

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#8 2021-08-03 19:13:54

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 76,086

Re: [SOLVED] Fn Mute Key is locked (Thinkpad X1 Carbon 6th Gen)

The parameter moves the SoF issue out of the way.
Stop pulseaudio, https://wiki.archlinux.org/title/PulseAudio#Stopping
Then re-check amixer and the sound availability.

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#9 2021-08-04 06:43:32

Tyskr
Member
Registered: 2019-12-11
Posts: 67

Re: [SOLVED] Fn Mute Key is locked (Thinkpad X1 Carbon 6th Gen)

seth wrote:

The parameter moves the SoF issue out of the way.
Stop pulseaudio, https://wiki.archlinux.org/title/PulseAudio#Stopping
Then re-check amixer and the sound availability.

I stopped pulseaudio and amixer now says:

Simple mixer control 'Master',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 87
  Mono: Playback 60 [69%] [-20.25dB] [on]
Simple mixer control 'Headphone',0
  Capabilities: pswitch
  Playback channels: Front Left - Front Right
  Mono:
  Front Left: Playback [on]
  Front Right: Playback [on]
Simple mixer control 'Speaker',0
  Capabilities: pswitch
  Playback channels: Front Left - Front Right
  Mono:
  Front Left: Playback [on]
  Front Right: Playback [on]
Simple mixer control 'PCM',0
  Capabilities: pvolume
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 255
  Mono:
  Front Left: Playback 255 [100%] [0.00dB]
  Front Right: Playback 255 [100%] [0.00dB]
Simple mixer control 'Line Out',0
  Capabilities: pvolume
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 87
  Mono:
  Front Left: Playback 87 [100%] [0.00dB]
  Front Right: Playback 87 [100%] [0.00dB]
Simple mixer control 'Mic Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 0 [0%] [0.00dB]
  Front Right: 0 [0%] [0.00dB]
Simple mixer control 'IEC958',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958',1
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958',2
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958',3
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958',4
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 63
  Front Left: Capture 63 [100%] [30.00dB] [off]
  Front Right: Capture 63 [100%] [30.00dB] [off]
Simple mixer control 'Auto-Mute Mode',0
  Capabilities: enum
  Items: 'Disabled' 'Enabled'
  Item0: 'Enabled'
Simple mixer control 'Internal Mic Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 0 [0%] [0.00dB]
  Front Right: 0 [0%] [0.00dB]

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#10 2021-08-04 06:51:29

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 76,086

Re: [SOLVED] Fn Mute Key is locked (Thinkpad X1 Carbon 6th Gen)

Do you get sound from the headphone jack?

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#11 2021-08-04 09:15:24

Tyskr
Member
Registered: 2019-12-11
Posts: 67

Re: [SOLVED] Fn Mute Key is locked (Thinkpad X1 Carbon 6th Gen)

seth wrote:

Do you get sound from the headphone jack?

I do.

Success! Sound from Speakers is back after I plugged in my headphones. Kinda strange.

Thank you seth <3

Last edited by Tyskr (2021-08-04 09:17:12)

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#12 2021-08-04 11:09:43

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 76,086

Re: [SOLVED] Fn Mute Key is locked (Thinkpad X1 Carbon 6th Gen)

There seems to be an inverted behavior for

Simple mixer control 'Auto-Mute Mode',0
  Capabilities: enum
  Items: 'Disabled' 'Enabled'
  Item0: 'Enabled'

The reason could be the status of

Simple mixer control 'Headphone',0
  Capabilities: pswitch
  Playback channels: Front Left - Front Right
  Mono:
  Front Left: Playback [on]
  Front Right: Playback [on]

(But I'm not sure about that)

The desired behavior would be to have sounds from the speakers when the headphone is *not* plugged and the speakers to be silent when they *are* plugged.
But that's not the current behavior, is it?

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#13 2021-08-04 14:42:35

Tyskr
Member
Registered: 2019-12-11
Posts: 67

Re: [SOLVED] Fn Mute Key is locked (Thinkpad X1 Carbon 6th Gen)

seth wrote:

There seems to be an inverted behavior for

Simple mixer control 'Auto-Mute Mode',0
  Capabilities: enum
  Items: 'Disabled' 'Enabled'
  Item0: 'Enabled'

The reason could be the status of

Simple mixer control 'Headphone',0
  Capabilities: pswitch
  Playback channels: Front Left - Front Right
  Mono:
  Front Left: Playback [on]
  Front Right: Playback [on]

(But I'm not sure about that)

The desired behavior would be to have sounds from the speakers when the headphone is *not* plugged and the speakers to be silent when they *are* plugged.
But that's not the current behavior, is it?

That is the current behavior.

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#14 2021-08-04 14:53:48

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 76,086

Re: [SOLVED] Fn Mute Key is locked (Thinkpad X1 Carbon 6th Gen)

The jack might just have been jammed, reading a ghost plug (there's a spring inside) and you released it w/ the plug.

Please always remember to mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.

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#15 2023-10-03 06:56:03

soloarch
Member
Registered: 2023-10-03
Posts: 2

Re: [SOLVED] Fn Mute Key is locked (Thinkpad X1 Carbon 6th Gen)

It happened to me also. What I have done is firstly to turn off the light:
sudo vim /sys/class/leds/platform::mute/brightness
and change the value to be 0.

Then the key F1 works again and I can use it to turn on and off speaker again.

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