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!
Thanks!
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:
System:
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
Machine:
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
Battery:
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
CPU:
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
Graphics:
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
Audio:
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
Network:
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>
Drives:
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
Partition:
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
Swap:
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
Sensors:
System Temperatures: cpu: 43.0 C mobo: 43.0 C
Fan Speeds (RPM): N/A
Info:
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 giometti@linux.it
[ 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.
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 
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