This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-focal -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1862712 Title: change the ASoC card name and card longname to meet the requirement of alsa-lib-1.2.1 (Focal) Status in linux package in Ubuntu: Confirmed Bug description: In the ubuntu-20.04, we integrate the alsa-lib-1.2.1.2, and from the alsa-lib-1.2.1, the ucm is put into a standalone package alsa-ucm-conf, and from the 1.2.1, the alsa-lib supports the ucm2. In the alsa-ucm-conf-1.2.1.2, the ucm2 folders are named by new card name or longname, kernel-v5.5-rc1 has patches to change those names to new names. now we backport them to focal kernel. [Impact] booting with the focal kernel, the audio driver can't find the ucm2 confs, that is becuase alsa-lib-1.2.1 requires new cardname and long name, but focal kernel provides the old card names. [Fix] backport 3 patches from v5.5-rc1. [Test Case] install the 20.04 daily build image, install the linux-firmware and alsa-ucm-conf, booting with the kernel which have those 3 patches, the alsa-lib could find the correct ucm2 confs. [Regression Risk] It is low risk to focal. If users install focal kernel to bionic or disco, it will break the audio since the ucm in the bionic and disco still follow the old card name and longname, we need to link a new copy ucm named by new cardname or longname in the bionic and disco. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1862712/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
