OP had also tested this with linux-image-generic-hwe-18.04 / linux- image-4.18.0-20-generic, where dmesg looked very similar to that of this hwe-18.04-edge kernel.
Gabriele: (1) Please do as discussed in comment 2. (2) Please also re-run alsa-info as discussed at https://wiki.ubuntu.com/Audio/AlsaInfo and attach the output as a file to this bug report. (3) These commands (3 lines total) would create an ALSA profile for your hardware, and may provide audio after rebooting: sudo mkdir -p /usr/share/alsa/ucm/bytcr-rt5651 && \ wget -qO- 'https://git.alsa-project.org/?p=alsa-lib.git;a=blob_plain;f=src/conf/ucm/bytcr-rt5651/bytcr-rt5651.conf' | sudo tee /usr/share/alsa/ucm/bytcr-rt5651/bytcr-rt5651.conf >/dev/null && \ wget -qO- https://git.alsa-project.org/?p=alsa-lib.git;a=blob_plain;f=src/conf/ucm/bytcr-rt5651/HiFi.conf | sudo tee /usr/share/alsa/ucm/bytcr-rt5651/HiFi.conf >/dev/null To undo these changes, please run this command: sudo rm -r /usr/share/alsa/ucm/bytcr-rt5651 Please report back whether this helped. If so, please repeat (1) and (2). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1831301 Title: sound doesn't works in both kernel. no one cards is recognize by system- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1831301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
