justn
19 August 2020 04:37
1
Having an odd issue, my built-in mic on my ThinkPad T460 is not working or even recognized as a device in Audio System Settings. It was working at one point and then it stopped. I believe this occurred after I had used a Griffin iMic (which is a usb input and output audio adapter). I suspect that my audio configuration may somehow be corrupt, but I have no clue where to begin my troubleshooting.
To test if it was my install of Manjaro or a hardware issue, I booted a live Manjaro session and my mic is recognized and functions just fine.
Let me know if additional detail or other specific information is needed.
Then post
inxi -Fzxxxa
and the output of
alsamixer (on console).
justn
19 August 2020 05:04
3
Here’s inxi -Fzxxxa
System:
Kernel: 5.4.57-1-MANJARO x86_64 bits: 64 compiler: gcc v: 10.1.0
parameters: BOOT_IMAGE=/@/boot/vmlinuz-5.4-x86_64
root=UUID=2930a0bf-fdb6-4638-afe5-37979b9e0fe9 rw rootflags=subvol=@ quiet
cryptdevice=UUID=a70a7d26-f8c2-41c6-b7ce-4b6a601b8fbb:luks-a70a7d26-f8c2-41c6-b7ce-4b6a601b8fbb
root=/dev/mapper/luks-a70a7d26-f8c2-41c6-b7ce-4b6a601b8fbb
resume=/dev/mapper/luks-a70a7d26-f8c2-41c6-b7ce-4b6a601b8fbb apparmor=1
security=apparmor udev.log_priority=3
Desktop: KDE Plasma 5.19.4 tk: Qt 5.15.0 info: latte-dock wm: kwin_x11
dm: SDDM Distro: Manjaro Linux
Machine:
Type: Laptop System: LENOVO product: 20FN002NUS v: ThinkPad T460
serial: <filter> Chassis: type: 10 serial: <filter>
Mobo: LENOVO model: 20FN002NUS v: SDK0J40705 WIN serial: <filter>
UEFI: LENOVO v: R06ET68W (1.42 ) date: 10/08/2019
Battery:
ID-1: BAT0 charge: 3.9 Wh condition: 19.1/23.2 Wh (83%) volts: 12.1/11.1
model: SONY 45N1111 type: Li-poly serial: <filter> status: Charging
ID-2: BAT1 charge: 0.8 Wh condition: 19.1/23.5 Wh (81%) volts: 11.1/11.4
model: LGC 45N1127 type: Li-ion serial: <filter> status: Unknown
CPU:
Topology: Dual Core model: Intel Core i5-6300U bits: 64 type: MT MCP
arch: Skylake family: 6 model-id: 4E (78) stepping: 3 microcode: D6
L2 cache: 3072 KiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
bogomips: 20004
Speed: 2700 MHz min/max: 400/3000 MHz Core speeds (MHz): 1: 2721 2: 2750
3: 2738 4: 2797
Vulnerabilities: Type: itlb_multihit status: KVM: Split huge pages
Type: l1tf
mitigation: PTE Inversion; VMX: conditional cache flushes, SMT vulnerable
Type: mds mitigation: Clear CPU buffers; SMT vulnerable
Type: meltdown mitigation: PTI
Type: spec_store_bypass
mitigation: Speculative Store Bypass disabled via prctl and seccomp
Type: spectre_v1
mitigation: usercopy/swapgs barriers and __user pointer sanitization
Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional,
IBRS_FW, STIBP: conditional, RSB filling
Type: srbds status: Vulnerable: No microcode
Type: tsx_async_abort mitigation: Clear CPU buffers; SMT vulnerable
Graphics:
Device-1: Intel Skylake GT2 [HD Graphics 520] vendor: Lenovo driver: i915
v: kernel bus ID: 00:02.0 chip ID: 8086:1916
Device-2: Acer ThinkPad P50 Integrated Camera type: USB driver: uvcvideo
bus ID: 1-10:4 chip ID: 5986:0706
Display: x11 server: X.Org 1.20.8 compositor: kwin_x11 driver: intel
unloaded: modesetting alternate: fbdev,vesa display ID: :0 screens: 1
Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x285mm (20.0x11.2")
s-diag: 582mm (22.9")
Monitor-1: eDP1 res: 1920x1080 hz: 60 dpi: 157 size: 310x170mm (12.2x6.7")
diag: 354mm (13.9")
OpenGL: renderer: Mesa Intel HD Graphics 520 (SKL GT2) v: 4.6 Mesa 20.1.5
direct render: Yes
Audio:
Device-1: Intel Sunrise Point-LP HD Audio vendor: Lenovo
driver: snd_hda_intel v: kernel alternate: snd_soc_skl bus ID: 00:1f.3
chip ID: 8086:9d70
Sound Server: ALSA v: k5.4.57-1-MANJARO
Network:
Device-1: Intel Ethernet I219-LM vendor: Lenovo driver: e1000e v: 3.2.6-k
port: efa0 bus ID: 00:1f.6 chip ID: 8086:156f
IF: enp0s31f6 state: down mac: <filter>
Device-2: Intel Wireless 8260 driver: iwlwifi v: kernel port: efa0
bus ID: 04:00.0 chip ID: 8086:24f3
IF: wlp4s0 state: up mac: <filter>
Drives:
Local Storage: total: 931.51 GiB used: 507.26 GiB (54.5%)
SMART Message: Unable to run smartctl. Root privileges required.
ID-1: /dev/sda vendor: SanDisk model: SDSSDH3 1T00 size: 931.51 GiB
block size: physical: 512 B logical: 512 B speed: 6.0 Gb/s
serial: <filter> rev: 40RL scheme: GPT
Partition:
ID-1: / raw size: 929.22 GiB size: 929.22 GiB (100.00%)
used: 507.10 GiB (54.6%) fs: btrfs dev: /dev/dm-0
ID-2: /home raw size: 929.22 GiB size: 929.22 GiB (100.00%)
used: 507.10 GiB (54.6%) fs: btrfs dev: /dev/dm-0
Swap:
Kernel: swappiness: 60 (default) cache pressure: 100 (default)
ID-1: swap-1 type: partition size: 2.00 GiB used: 160.5 MiB (7.8%)
priority: -2 dev: /dev/sda3
Sensors:
System Temperatures: cpu: 62.0 C mobo: N/A
Fan Speeds (RPM): cpu: 4085
Info:
Processes: 271 Uptime: 38m Memory: 11.56 GiB used: 4.55 GiB (39.3%)
Init: systemd v: 245 Compilers: gcc: 10.1.0 clang: 10.0.1 Packages: 1903
pacman: 1894 lib: 465 flatpak: 0 snap: 9 Shell: Bash v: 5.0.18
running in: konsole inxi: 3.1.05
And here’s alsamixer
┌────────────────────────────── AlsaMixer v1.2.3 ──────────────────────────────┐
│ Card: PulseAudio F1: Help │
│ Chip: PulseAudio F2: System information │
│ View: F3:[Playback] F4: Capture F5: All F6: Select sound card │
│ Item: Master Esc: Exit │
│ │
│ │
│ ┌──┐ │
│ │ │ │
│ │ │ │
│ │ │ │
│ │ │ │
│ │ │ │
│ │ │ │
│ │▒▒│ │
│ │▒▒│ │
│ │▒▒│ │
│ │▒▒│ │
│ │▒▒│ │
│ │▒▒│ │
│ │▒▒│ │
│ ├──┤ │
│ │OO│ │
│ └──┘ │
│ 56<>56 │
│ < Master > │
│ │
│ │
└──────────────────────────────────────────────────────────────────────────────┘
If you press F4 on AlsaMixer does it show any capture devices? Sometimes this defaults to 0 volume.
justn
20 August 2020 02:25
5
Here’s the capture devices with the “default” sound card selected.
┌────────────────────────────── AlsaMixer v1.2.3 ──────────────────────────────┐
│ Card: PulseAudio F1: Help │
│ Chip: PulseAudio F2: System information │
│ View: F3: Playback F4:[Capture] F5: All F6: Select sound card │
│ Item: Capture Esc: Exit │
│ │
│ │
│ ┌──┐ │
│ │ │ │
│ │▒▒│ │
│ │▒▒│ │
│ │▒▒│ │
│ │▒▒│ │
│ │▒▒│ │
│ │▒▒│ │
│ │▒▒│ │
│ │▒▒│ │
│ │▒▒│ │
│ │▒▒│ │
│ │▒▒│ │
│ │▒▒│ │
│ L└──┘R │
│ CAPTURE │
│ 95<>95 │
│ <Capture > │
│ │
│ │
└──────────────────────────────────────────────────────────────────────────────┘
And here’s the capture devices with the “HDA Intel PCH” card selected.
┌────────────────────────────── AlsaMixer v1.2.3 ──────────────────────────────┐
│ Card: HDA Intel PCH F1: Help │
│ Chip: Realtek ALC293 F2: System information │
│ View: F3: Playback F4:[Capture] F5: All F6: Select sound card │
│ Item: Capture [dB gain: 30.00, 30.00] Esc: Exit │
│ │
│ │
│ ┌──┐ ┌──┐ ┌──┐ ┌──┐ │
│ │▒▒│ │▒▒│ │▒▒│ │▒▒│ │
│ │▒▒│ │▒▒│ │▒▒│ │▒▒│ │
│ │▒▒│ │▒▒│ │▒▒│ │▒▒│ │
│ │▒▒│ │▒▒│ │▒▒│ │▒▒│ │
│ │▒▒│ │▒▒│ │▒▒│ │▒▒│ │
│ │▒▒│ │▒▒│ │▒▒│ │▒▒│ │
│ │▒▒│ │▒▒│ │▒▒│ │▒▒│ │
│ │▒▒│ │▒▒│ │▒▒│ │▒▒│ │
│ │▒▒│ │▒▒│ │▒▒│ │▒▒│ │
│ │▒▒│ │▒▒│ │▒▒│ │▒▒│ │
│ │▒▒│ │▒▒│ │▒▒│ │▒▒│ │
│ │▒▒│ │▒▒│ │▒▒│ │▒▒│ │
│ │▒▒│ │▒▒│ │▒▒│ │▒▒│ │
│ └──┘ L└──┘R └──┘ └──┘ │
│ CAPTURE │
│ 100<>100 100<>100 100<>100 100<>100 │
│ Mic Boost < Capture > Dock Mic Boost Internal Mic Boost │
│ │
│ │
└──────────────────────────────────────────────────────────────────────────────┘
Despite this, Audio settings still doesn’t show any recording or capture device.
Have you can got Pulse Audio Volume Control install, if so you maybe able to choose default input device there.
justn
20 August 2020 04:30
7
I do have Pulse Audio Volume Control, but it shows no recording or input devices either.
Solution to get audio again:
Open /etc/modprobe.d/alsa-base.conf
and add the following line at the end:
options snd-hda-intel dmic_detect=0
Then:
pulseaudio -k && sudo alsa force-reload
justn
20 August 2020 13:59
9
/etc/modprobe.d/alsa-base.conf
didn’t exist, I created the file and added the line
options snd-hda-intel dmic_detect=0
Then I ran
pulseaudio -k && sudo alsa force-reload
and Pulse Audio reloaded, but the alsa
command could not be found.
My terminal output:
sudo: alsa: command not found
justn
21 August 2020 03:05
10
I believe I finally have this problem solved, time will tell if it happens again when I connect and use my Griffin iMic.
I found the solution here, on the Arch Wiki .
3 Likes
system
Closed
24 August 2020 03:05
11
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