1. installed as the order below: sudo dpkg -i linux-image-xxx.deb sudo dpkg -i linux-modules-xxxx.deb sudo dpkg -i linux-modules-extra-xxx.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: - Only random electric noise. 5. Test recording for external mic case - Only random electric noise. Attached alsa-info.ext collected ** Attachment added: "alsa-info.txt.cX0MHoMXkI" https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1846148/+attachment/5306128/+files/alsa-info.txt.cX0MHoMXkI -- 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
