No Sound from Laptop

I have a Samsung Galaxy Book Flex Alpha and all of a sudden the sound stopped working. The output is not detected by the software (it shows “Dummy Output”)

Any help would be helpful!


OS: Manjaro Linux x86_64
Host: 730QCJ/730QCR P06RFG
Kernel: 5.9.16-1-MANJARO

Please post the output of inxi -Fazy and sudo dmesg | egrep -i '(alsa|snd|sound|sof|hda)'.

inxi -Fazy:

  Kernel: 5.9.16-1-MANJARO x86_64 bits: 64 compiler: gcc v: 10.2.0 
  parameters: BOOT_IMAGE=/boot/vmlinuz-5.9-x86_64 
  root=UUID=c319c594-7465-43d6-9550-15e7e20ae14c rw quiet udev.log_priority=3 
  Desktop: Unity info: xfce4-panel wm: xfwm4 dm: LightDM 1.30.0 
  Distro: Manjaro Linux 
  Type: Laptop System: SAMSUNG product: 730QCJ/730QCR v: P06RFG 
  serial: <filter> Chassis: type: 10 serial: <filter> 
  Mobo: SAMSUNG model: NP730QCJ-K02US v: SGLA653A03-C01-G001-S0001+10.0.19041 
  serial: <filter> UEFI: American Megatrends v: P06RFG.041.201125.FL 
  date: 11/25/2020 
  ID-1: BAT1 charge: 37.7 Wh condition: 55.4/54.4 Wh (102%) volts: 15.7/15.4 
  model: SAMSUNG Electronics SR Real Battery type: Li-ion serial: <filter> 
  status: Discharging cycles: 16 
  Device-1: hid-0018:04F3:2AC3.0002-battery model: ELAN902C:00 04F3:2AC3 
  serial: N/A charge: N/A status: N/A 
  Info: Quad Core model: Intel Core i7-10510U bits: 64 type: MT MCP 
  arch: Kaby Lake note: check family: 6 model-id: 8E (142) stepping: C (12) 
  microcode: C6 L2 cache: 8 MiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx 
  bogomips: 36812 
  Speed: 800 MHz min/max: 400/4900 MHz Core speeds (MHz): 1: 800 2: 800 3: 800 
  4: 801 5: 800 6: 800 7: 800 8: 800 
  Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled 
  Type: l1tf status: Not affected 
  Type: mds status: Not affected 
  Type: meltdown status: Not affected 
  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: Enhanced IBRS, IBPB: conditional, RSB filling 
  Type: srbds mitigation: TSX disabled 
  Type: tsx_async_abort status: Not affected 
  Device-1: Intel UHD Graphics vendor: Samsung Co driver: i915 v: kernel 
  bus ID: 00:02.0 chip ID: 8086:9b41 
  Device-2: Generic 720p HD Camera type: USB driver: uvcvideo bus ID: 1-6:5 
  chip ID: 2b7e:0134 serial: <filter> 
  Display: x11 server: X.Org 1.20.10 driver: intel unloaded: modesetting 
  alternate: fbdev,vesa display ID: :0.0 screens: 1 
  Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x285mm (20.0x11.2") 
  s-diag: 582mm (22.9") 
  OpenGL: renderer: Mesa Intel UHD Graphics (CML GT2) v: 4.6 Mesa 20.3.1 
  direct render: Yes 
  Device-1: Intel vendor: Samsung Co driver: sof-audio-pci 
  alternate: snd_hda_intel,snd_soc_skl,snd_sof_pci bus ID: 00:1f.3 
  chip ID: 8086:02c8 
  Sound Server: ALSA v: k5.9.16-1-MANJARO 
  Device-1: Intel Wireless-AC 9462 driver: iwlwifi v: kernel port: 3000 
  bus ID: 00:14.3 chip ID: 8086:02f0 
  IF: wlo1 state: up mac: <filter> 
  Local Storage: total: 476.94 GiB used: 7.8 GiB (1.6%) 
  SMART Message: Required tool smartctl not installed. Check --recommends 
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Samsung model: MZVLB512HBJQ-000 
  size: 476.94 GiB block size: physical: 512 B logical: 512 B speed: 31.6 Gb/s 
  lanes: 4 serial: <filter> rev: EXF71K2Q temp: 43.9 C 
  ID-1: / raw size: 58.59 GiB size: 57.42 GiB (98.00%) used: 6.92 GiB (12.0%) 
  fs: ext4 dev: /dev/nvme0n1p10 maj-min: 259:10 
  ID-2: /boot/efi raw size: 1000 MiB size: 998 MiB (99.80%) 
  used: 312 KiB (0.0%) fs: vfat dev: /dev/nvme0n1p11 maj-min: 259:11 
  ID-3: /home raw size: 88.23 GiB size: 86.34 GiB (97.86%) 
  used: 909.3 MiB (1.0%) fs: ext4 dev: /dev/nvme0n1p12 maj-min: 259:12 
  Kernel: swappiness: 60 (default) cache pressure: 100 (default) 
  ID-1: swap-1 type: partition size: 13.67 GiB used: 0 KiB (0.0%) priority: -2 
  dev: /dev/nvme0n1p7 maj-min: 259:7 
  System Temperatures: cpu: 43.0 C mobo: 43.0 C 
  Fan Speeds (RPM): N/A 
  Processes: 232 Uptime: 1h 58m wakeups: 1865 Memory: 11.49 GiB 
  used: 2.25 GiB (19.6%) Init: systemd v: 247 Compilers: gcc: N/A Packages: 
  pacman: 1027 lib: 355 Shell: Bash v: 5.1.0 running in: terminator 
  inxi: 3.2.01 

[ 0.421501] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti
[ 1.164858] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
[ 1.164860] software IO TLB: mapped [mem 0x8d847000-0x91847000] (64MB)
[ 2.723070] snd_hda_intel 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040100
[ 2.723075] snd_hda_intel 0000:00:1f.3: Digital mics found on Skylake+ platform, using SOF driver
[ 2.971616] snd_soc_skl 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040100
[ 2.971620] snd_soc_skl 0000:00:1f.3: Digital mics found on Skylake+ platform, using SOF driver
[ 3.231803] sof-audio-pci 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040100
[ 3.231808] sof-audio-pci 0000:00:1f.3: Digital mics found on Skylake+ platform, using SOF driver
[ 3.231817] sof-audio-pci 0000:00:1f.3: enabling device (0000 -> 0002)
[ 3.232075] sof-audio-pci 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if 0x040100
[ 3.606176] sof-audio-pci 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[ 3.613489] sof-audio-pci 0000:00:1f.3: use msi interrupt mode
[ 3.823028] sof-audio-pci 0000:00:1f.3: hda codecs found, mask 5
[ 3.823031] sof-audio-pci 0000:00:1f.3: using HDA machine driver skl_hda_dsp_generic now
[ 3.823039] sof-audio-pci 0000:00:1f.3: DMICs detected in NHLT tables: 2
[ 3.823212] sof-audio-pci 0000:00:1f.3: Direct firmware load for intel/sof/sof-cml.ri failed with error -2
[ 3.823215] sof-audio-pci 0000:00:1f.3: error: request firmware intel/sof/sof-cml.ri failed err: -2
[ 3.823217] sof-audio-pci 0000:00:1f.3: error: failed to load DSP firmware -2
[ 3.823774] sof-audio-pci 0000:00:1f.3: error: sof_probe_work failed err: -2

It seems all you need to do is install the sof-firmware package and reboot.

1 Like

How do I do that?

sudo pacman -Syu sof-firmware; or open the “Add/remove software” application and search for “sof-firmware” and install it there.

Thanks so much! It worked!

this looks very familiar :smile:

1 Like

This topic was automatically closed 15 days after the last reply. New replies are no longer allowed.