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-oem-5.6 in Ubuntu. https://bugs.launchpad.net/bugs/1890231 Title: alsa: should not load sof driver if the internal mic connects to the codec Status in HWE Next: New Status in linux-oem-5.6 package in Ubuntu: In Progress Status in linux-oem-5.6 source package in Focal: Fix Committed Bug description: This issue was introduced by #1872916 ("Support Intel Soundwire in 5.6-OEM Kernel 20.04"), so focal and groovy kernels don't need this fix. [Impact] We found the sof driver instead of hda driver is enabled on a dell machine without soundwire and dmic. This will make gnome show dummy output and users have no audio device to use. [Fix] When we integrated fix for #1872916, we backported 2 patches, these 2 patches enable the sof driver unconditionally for Dell comet lake machines. There is an upstream patch to fix it, let the sof driver enable conditionally on comet lake machines. [Test Case] Boot the kernel with this patch on that dell machine, check the gnome-control-center, all audio devices exist, playback and recording work well. [Regression Risk] On Dell Comet Lake machines with DMIC, the sof driver should be enabled. Without this patch, the sof driver will be enabled unconditionally, but with this patch, the sof driver will be enabled conditionally, so it is possible to introduce a regression that on Dell Comet Lake machines, the sof driver is not enabled even the machine has DMIC. I have tested this patch on a Dell Comet Lake dmic machines, it worked well. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1890231/+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
