Public bug reported: Using the built in speakers on a Linx 1010b. The 5.11 kernel works fine, but 5.13 and 5.14 fail.
The card, when working is seen in alsa-info as bytcrrt5640,bytcr-rt5640, whereas in the later (hwe-20.04-edge, oem-20.04d) kernels where it fails, it is seen as "rt5640,sof-bytcht rt5640" When failing, speaker-test, spd-say, and most other sound sources seem to get 'sunk', and the level meter on the pulse mixer shows activity. FWIW "espeak-ng hello" blocks on the broken setup. I confess I'm not actually using the linux-meta-hwe-5.13 as it is unavailable in LinuxMint. I am using linux-generic-hwe-20.04-edge, which AFAICT pulls in the same kernels. apt policy pointed me to report here. ** Affects: linux-meta-hwe-5.13 (Ubuntu) Importance: Undecided Status: New ** Attachment added: "alsa-info inxi-Fxxrzc0 and pactl list, booted under all three kernels" https://bugs.launchpad.net/bugs/1958410/+attachment/5555499/+files/alsa-info_inxi-Fxxrzc0_pactl-list.tar.gz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1958410 Title: bytcr_rt5640 sound not working with kernel >= 5.13 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-meta-hwe-5.13/+bug/1958410/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs