Kubuntu 20.04 on Thinkpad X1 Carbon and no audio

Question

I have recently installed Kubuntu 20.04 on my Lenovo Thinkpad X1 carbon and there is no sound from internal speakers. I have a Bluetooth headset and when testing the audio via Bluetooth HS works fine. Can someone please help me get sound working from builtin speakers.

What I have tried so far without any usccess

I have adjusted the settings in alsamixer as suggested here by Giorgio Vitanza but it didn't work
I reinstalled alsa and pulseaudio as suggested by Khalil in this post but it didn't work
I updated alsa-base.conf to add options snd-hda-intel model=generic as suggested by Mark X in this post but it didn't work for me.
I updated alsa-base.conf to add options snd-hda-intel dmic_detect=0 as suggested by Leon X in this post but it didn't work for me.

My system details

$ uname -a

Linux ThinkPad 5.4.0-52-generic #57-Ubuntu SMP Thu Oct 15 10:57:00 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

Running sudo lshw -C multimedia outputs

  *-multimedia
       description: Audio device
       product: Sunrise Point-LP HD Audio
       vendor: Intel Corporation
       physical id: 1f.3
       bus info: pci@0000:00:1f.3
       version: 21
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list
       configuration: driver=snd_hda_intel latency=64
       resources: irq:136 memory:f1340000-f1343fff memory:f1330000-f133ffff

$ lspci -v | grep -A7 -i "audio"

00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
        Subsystem: Lenovo Sunrise Point-LP HD Audio
        Flags: bus master, fast devsel, latency 64, IRQ 136
        Memory at f1340000 (64-bit, non-prefetchable) [size=16K]
        Memory at f1330000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: <access denied>
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd_hda_intel

Have you tried installing sof-firmware? That's how I fixed my issue on ArchLinux. — antoyo, Nov 17 '20 at 12:58
Thanks @antoyo Can you please advise me where to find this firmware? — Khurram Majeed, Nov 18 '20 at 18:58
I'm not sure whether there's already a package for Ubuntu. Maybe one of these links provide what you need: https://github.com/thesofproject/sof-bin https://github.com/thesofproject/sof/releases/ — antoyo, Nov 20 '20 at 00:51
@KhurramMajeed What generation of X1 Carbon do you have? I have a 6th gen, and I have the same problem. Opened a bug report here: https://askubuntu.com/questions/1290154/kubuntu-20-04-on-thinkpad-x1-carbon-and-no-audio — mpenkov, Nov 30 '20 at 00:10

Kubuntu 20.04 on Thinkpad X1 Carbon and no audio

0 Answers0