** Description changed: This SRU is not backported from upstream of alsa-lib and this SRU is not going to be submitted to upstream. That is because the latest alsa-lib - already supported the ucm2 and with ucm2 all machines could share one - ucm, so there is no this problem for latest alsa-lib. This problem is - only specific to the alsa-lib of Eoan and Bionic. + already supports ucm2, and with ucm2 all machines could share one ucm, + so latest alsa-lib does not have this problem. This problem is only + specific to the alsa-lib in Bionic and Eoan. [Impact] - On some lenovo notebooks, ucm files are not loaded and mic can't be used + On some Lenovo notebooks, UCM files are not loaded and mic can't be used. [Fix] UCM was loaded based on cardlongname, but that can't cover all configs of the same model. Lenovo suggested to load ucm by the first 3 letters of /sys/devices/virtual/dmi/id/bios_version, so that all configs could use just one ucm. [Test Case] - after applying this patch, I installed the testing alsa-lib on lenovo X1C7 and Dell vostro5390 which are all machines with the dmic connected to pch, after booing up, I checked the /usr/share/alsa/ucm/, the LENOVO-BIOSID-xxx folders are there, and the LENOVO machine loaded the N2H/*.conf, it worked well, the Dell machine still loaded the ucm by cardname, it worked as good as before. + After applying this patch, install the testing alsa-lib on Lenovo X1C7 and Dell vostro 5390, which are all machines with the DMIC connected to PCH. After system bootup, check the /usr/share/alsa/ucm/ for the presence of LENOVO-BIOSID-xxx directories. + + Lenovo X1C7 should load the N2H/*.conf and verify the audio + functionalities. The Dell machine should still load the ucm by cardname, + and it should work as good as before. [Regression Potential] - low, just add some new ucms and let LENOVO machine find the ucm by bios_version if it fails by cardlongname. And already tested the change on lenovo and dell machines. + low, just add some new UCMs and let Lenovo machine find the UCM by bios_version if it fails by cardlongname. I've already tested the change on Lenovo and Dell machines.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-lib in Ubuntu. https://bugs.launchpad.net/bugs/1868210 Title: [SRU] Load ucm on Lenovo notebooks based on bios version Status in HWE Next: New Status in alsa-lib package in Ubuntu: Invalid Status in alsa-lib source package in Bionic: Confirmed Status in alsa-lib source package in Eoan: Confirmed Status in alsa-lib source package in Focal: Invalid Bug description: This SRU is not backported from upstream of alsa-lib and this SRU is not going to be submitted to upstream. That is because the latest alsa-lib already supports ucm2, and with ucm2 all machines could share one ucm, so latest alsa-lib does not have this problem. This problem is only specific to the alsa-lib in Bionic and Eoan. [Impact] On some Lenovo notebooks, UCM files are not loaded and mic can't be used. [Fix] UCM was loaded based on cardlongname, but that can't cover all configs of the same model. Lenovo suggested to load ucm by the first 3 letters of /sys/devices/virtual/dmi/id/bios_version, so that all configs could use just one ucm. [Test Case] After applying this patch, install the testing alsa-lib on Lenovo X1C7 and Dell vostro 5390, which are all machines with the DMIC connected to PCH. After system bootup, check the /usr/share/alsa/ucm/ for the presence of LENOVO-BIOSID-xxx directories. Lenovo X1C7 should load the N2H/*.conf and verify the audio functionalities. The Dell machine should still load the ucm by cardname, and it should work as good as before. [Regression Potential] low, just add some new UCMs and let Lenovo machine find the UCM by bios_version if it fails by cardlongname. I've already tested the change on Lenovo and Dell machines. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1868210/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
