both machines are IdeaPad 5 Icelake platforms. Could you please verify if 5.4.0-39 kernel has the problem or not?
sudo apt install linux-image-unsigned-5.4.0-39-generic linux-modules-extra-5.4.0-39-generic reboot with the 5.4.0-39 kernel and upload the dmesg To remove the 5.4.0-39 kernel sudo apt -r linux-image-... linux-modules-extra-... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1886341 Title: Kernel Regression between 5.4.0-26 and 5.4.0-40 causes laptop internal audio devices to fail to load w/o unacceptable workaround (Lenovo IdeaPad 5 15IIL05) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886341/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
