This bug is awaiting verification that the linux-
gcp-6.5/6.5.0-1013.13~22.04.1 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-jammy-linux-
gcp-6.5' to 'verification-done-jammy-linux-gcp-6.5'. If the problem
still exists, change the tag 'verification-needed-jammy-linux-gcp-6.5'
to 'verification-failed-jammy-linux-gcp-6.5'.


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: kernel-spammed-jammy-linux-gcp-6.5-v2 
verification-needed-jammy-linux-gcp-6.5

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-oem-6.5 in Ubuntu.
https://bugs.launchpad.net/bugs/2039151

Title:
  Support speaker mute hotkey for Cirrus CS35L41 HDA codec

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  Incomplete
Status in linux-oem-6.1 package in Ubuntu:
  Invalid
Status in linux-oem-6.5 package in Ubuntu:
  Invalid
Status in linux source package in Jammy:
  Invalid
Status in linux-oem-6.1 source package in Jammy:
  Fix Released
Status in linux-oem-6.5 source package in Jammy:
  Fix Released
Status in linux source package in Mantic:
  Fix Released
Status in linux-oem-6.5 source package in Mantic:
  Invalid

Bug description:
  [Impact]
  Some systems use a special hotkey to mute speaker audio. On systems using 
CS35L41 HDA which have this hotkey, add a mechanism which uses ACPI 
notifications to detect whether the hotkey is triggered to switch the mute 
state.

  [Fix]
  Backport the fix from Cirrus on linux-next 
https://lore.kernel.org/alsa-devel/87fs36egnv.wl-ti...@suse.de/T/#t.

  [Test Case]
  1. Power on the machine with CS35L41 HDA and the speaker mute hotkey.
  2. Verify the audio functions
  3. Verify if the speaker can be mute/unmute by the hotkey.

  [Where problems could occur]
  Only affect specific laptops with the CS35L41 HDA and the speaker mute hotkey 
on keyboard. The impact is restricted.

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