Hello Shengyao, or anyone else affected, Accepted alsa-lib into focal-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/alsa- lib/1.2.2-2.1ubuntu2.4 in a few hours, and then in the -proposed repository.
Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users. If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed- focal to verification-done-focal. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification- failed-focal. In either case, without details of your testing we will not be able to proceed. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping! N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to alsa-lib in Ubuntu. https://bugs.launchpad.net/bugs/1921452 Title: [SRU] alsa-lib: conf: USB - add "Cmedia Audio" to USB- Audio.pcm.iec958_device Status in OEM Priority Project: In Progress Status in alsa-lib package in Ubuntu: Fix Released Status in alsa-lib source package in Focal: Fix Committed Status in alsa-lib source package in Groovy: Fix Committed Status in alsa-lib source package in Hirsute: Fix Released Bug description: [Impact] On Cmedia Audio, unusable SPDIF can be selected as output from PulseAudio. [Fix] Disable IEC958 (SPDIF) through ALSA UCM. [Test] With the UCM applied, `pactl` and audio panel in gnome-control-center no longer have SPDIF option. [Where problems will occur] "Cmedia Audio" is the sound card name of this usb audio dongle, and this string is got from usb string descriptor, that is to say the "Cmedia Audio" is hard-coded in the firmware of that usb dongle. Not all Cmedia usb audio dongle use "Cmedia Audio", most of the dongles don't set string descriptor, then the audio driver sets a generic name "USB Audio Device" for them, if a dongle has string descriptor, it may have different string like "C-Media USB Headphone Set", and all dongles I met before don't have SPDIF interface. So If this SRU could introduce regression, it will happen on a Cmedia usb audio dongle which also hard-codes the "Cmedia Audio" in the string descriptor and it has SPDIF interface on it, after this SRU, users couldn't find the SPDIF playback device from the gnome-sound-setting. But this regression chance is very low since it is very rare a cmedia usb audio dongle uses "Cmedia Audio" in the string descriptor and it is very rare a usb audio dongle has SPDIF interface. So far we haven't met such a cmedia usb audio dongle. To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1921452/+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
