@Hui Wang: How do I actually load a mainline kernel? I installed Ubuntu Mainline Kernel Installer, and used it too install kernel 5.6.3; but at boot attempt, I get this message:
error: /boot/vmlinuz-5.6.3-050603-generic has invalid signature. error: you need to load the kernel first. -- 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
