I'm a newbie of Manjaro for about 5h now. I installed it on the 5th generation Lenovo Thinkpad X1 Yoga (which was released only a few weeks ago) as dual-boot with Win10.
I was able to handle problems with my sound devices (the current Kernel didn't seem to work, so I downgraded) but now that I can hear something the next problem occurred: Only the front speakers (left and right) of the laptop seem to work. This obviously results in rather poor sound quality.
To give some more information about my setup:
inxi -Fx System: Host: yoga Kernel: 5.6.15-1-MANJARO x86_64 bits: 64 compiler: gcc v: 10.1.0 Desktop: KDE Plasma 5.18.5 Distro: Manjaro Linux Machine: Type: Convertible System: LENOVO product: 20UBCTO1WW v: ThinkPad X1 Yoga Gen 5 serial: <root required> Mobo: LENOVO model: 20UBCTO1WW v: SDK0R32862 WIN serial: <root required> UEFI: LENOVO v: N2WET16W (1.06 ) date: 05/10/2020 Battery: ID-1: BAT0 charge: 52.8 Wh condition: 52.8/51.0 Wh (104%) model: SMP 5B10W13931 status: Full CPU: Topology: Quad Core model: Intel Core i7-10510U bits: 64 type: MT MCP arch: Kaby Lake rev: C L2 cache: 8192 KiB flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 36812 Speed: 700 MHz min/max: 400/4900 MHz Core speeds (MHz): 1: 700 2: 700 3: 700 4: 700 5: 700 6: 700 7: 700 8: 700 Graphics: Device-1: Intel UHD Graphics vendor: Lenovo driver: i915 v: kernel bus ID: 00:02.0 Display: x11 server: X.Org 1.20.8 driver: intel unloaded: modesetting resolution: 3840x2160~60Hz OpenGL: renderer: Mesa Intel UHD Graphics (CML GT2) v: 4.6 Mesa 20.0.7 direct render: Yes Audio: Device-1: Intel vendor: Lenovo driver: sof-audio-pci bus ID: 00:1f.3 Sound Server: ALSA v: k5.6.15-1-MANJARO Network: Device-1: Intel Wireless-AC 9462 driver: iwlwifi v: kernel port: 3000 bus ID: 00:14.3 IF: wlp0s20f3 state: up mac: bc:54:2f:a6:27:5f Device-2: Intel Ethernet I219-V vendor: Lenovo driver: e1000e v: 3.2.6-k port: efa0 bus ID: 00:1f.6 IF: enp0s31f6 state: down mac: 00:2b:67:78:50:65 Drives: Local Storage: total: 476.94 GiB used: 8.70 GiB (1.8%) ID-1: /dev/nvme0n1 vendor: Samsung model: MZVLB512HBJQ-000L7 size: 476.94 GiB Partition: ID-1: / size: 34.20 GiB used: 7.91 GiB (23.1%) fs: ext4 dev: /dev/nvme0n1p7 ID-2: /home size: 155.84 GiB used: 810.7 MiB (0.5%) fs: ext4 dev: /dev/nvme0n1p8 ID-3: swap-1 size: 20.00 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/nvme0n1p6 Sensors: System Temperatures: cpu: 60.0 C mobo: N/A Fan Speeds (RPM): cpu: 3563 Info: Processes: 247 Uptime: 18m Memory: 15.27 GiB used: 1.92 GiB (12.6%) Init: systemd Compilers: gcc: 10.1.0 Shell: bash v: 5.0.17 inxi: 3.0.37
aplay -l **** List of PLAYBACK Hardware Devices **** card 0: sofhdadsp [sof-hda-dsp], device 0: HDA Analog (*)  Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: sofhdadsp [sof-hda-dsp], device 1: HDA Digital (*)  Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: sofhdadsp [sof-hda-dsp], device 3: HDMI1 (*)  Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: sofhdadsp [sof-hda-dsp], device 4: HDMI2 (*)  Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: sofhdadsp [sof-hda-dsp], device 5: HDMI3 (*)  Subdevices: 1/1 Subdevice #0: subdevice #0
When running the
alsamixer, I can set the device sof-hda-dsp but I can only control the master Volume and the volume of the front speakers (left and right) simultaneously with the PGA1 slider.
I installed sof-firmware and edited the files /etc/pulse/default.pa to include
load-module module-alsa-source device=hw:0,6 channels=4 load-module module-alsa-sink device=hw:0,0
and /etc/modprobe.d/alsa.conf (I had to create the file):
options snd slots=,snd_usb_audio
as described in the Thinkpad Yoga Gen 4 Wiki
As I'm an absolute newbie with Manjaro (and only used GNU/Linux in general a few times before) I don't know what to do next and would be glad if you could give me any advice!