uname -a Linux lilian-dev 5.0.0-37-generic #41+redmiv2 SMP Mon Nov 18 05:09:35 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
1. installed as the order below: 789 sudo dpkg -i linux-headers-5.0.0-37_5.0.0-37.41+redmiv2_all.deb 790 sudo dpkg -i linux-headers-5.0.0-37-generic_5.0.0-37.41+redmiv2_amd64.deb 792 sudo dpkg -i linux-modules-5.0.0-37-generic_5.0.0-37.41+redmiv2_amd64.deb 793 sudo dpkg -i linux-modules-extra-5.0.0-37-generic_5.0.0-37.41+redmiv2_amd64.deb 794 sudo dpkg -i linux-image-unsigned-5.0.0-37-generic_5.0.0-37.41+redmiv2_amd64.deb 2. restart and boot to the test kernel. 3. Open settings and find Input tag from Sound. - The internal mic was not visible 3. insert the external mic - It appears as "Microphone - BuiltinAudio" - unplug it, still appears as "Microphone - BuiltinAudio" 4. Test recording for no external mic case: - no sound at all. - no change even change the input sound level to max in settings 5. Test recording for external mic case - no sound at all. - no change even change the input sound level to max in settings Attached alsa-info.ext collected ** Attachment added: "alsa-info.txt.p8ApzEvbP8" https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1846148/+attachment/5306137/+files/alsa-info.txt.p8ApzEvbP8 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1846148 Title: Realtek ALC256M with DTS Audio Processing internal microphone doesn't work on Redmi Book 14 2019 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1846148/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
