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/1899586 Title: Fix broken MSI interrupt after HDA controller was suspended Status in HWE Next: New Status in linux-oem-5.6 package in Ubuntu: Invalid Status in linux-oem-5.6 source package in Focal: Fix Committed Bug description: [Impact] After HDA controller gets suspended and resumed, no MSI interrupt raised when plugging headset to the audio jack. [Fix] Power up the Realtek codec when HDA controller runtime resumes. [Test] 1) Make sure both codec and HDA controller are runtime suspended. 2) Runtime resume the HDA controller without runtime resume the codec. 3) Plug a headset and see if the system can detect anything. With the fix applied, we can see azx_interrupt() is working again by using ftrace. [Regression Potential] If there's any system that is not affected by this issue, runtime-resume the HDA controller will take a slightly longer time. It's rather unlikely, since _all_ systems with Realtek codec we tested have this issue, regardless of AMD or Intel. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1899586/+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
