[Bug 1932352] Re: Fix micmute hotkeys on HP Elite Dragonfly

[Dan Streetman]

** Also affects: systemd (Ubuntu Impish)
   Importance: Undecided
       Status: New

** Also affects: systemd (Ubuntu Focal)
   Importance: Undecided
       Status: New

** Also affects: systemd (Ubuntu Hirsute)
   Importance: Undecided
       Status: New

** Also affects: systemd (Ubuntu Groovy)
   Importance: Undecided
       Status: New

** Changed in: systemd (Ubuntu Impish)
     Assignee: (unassigned) => jeremyszu (os369510)

** Changed in: systemd (Ubuntu Hirsute)
     Assignee: (unassigned) => jeremyszu (os369510)

** Changed in: systemd (Ubuntu Groovy)
     Assignee: (unassigned) => jeremyszu (os369510)

** Changed in: systemd (Ubuntu Focal)
     Assignee: (unassigned) => jeremyszu (os369510)

** Changed in: systemd (Ubuntu Impish)
   Importance: Undecided => Low

** Changed in: systemd (Ubuntu Groovy)
   Importance: Undecided => Low

** Changed in: systemd (Ubuntu Impish)
       Status: New => In Progress

** Changed in: systemd (Ubuntu Focal)
   Importance: Undecided => Low

** Changed in: systemd (Ubuntu Hirsute)
       Status: New => In Progress

** Changed in: systemd (Ubuntu Focal)
       Status: New => In Progress

** Changed in: systemd (Ubuntu Hirsute)
   Importance: Undecided => Low

** Changed in: systemd (Ubuntu Groovy)
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/1932352

Title:
  Fix micmute hotkeys on HP Elite Dragonfly

Status in OEM Priority Project:
  Triaged
Status in systemd package in Ubuntu:
  In Progress
Status in systemd source package in Focal:
  In Progress
Status in systemd source package in Groovy:
  In Progress
Status in systemd source package in Hirsute:
  In Progress
Status in systemd source package in Impish:
  In Progress

Bug description:
  [Impact]
  Mic mute key is no function on HP Elite Dragonfly.

  [Fix]
  After confirming with HP, there are two model names for Dragonfly:
  * HP Elite Dragonfly G2 Notebook PC
  * HP Elite Dragonfly Max Notebook PC
  Thus, the commit 
  Commit c1b8c966eccb7be1cae0a30670f5e1fcd88b47fa maps the 81 scan code to mic mute key.

  [Test]
  After patching it, the mic mute key could functioned well on my Dragonfly laptop.

  [Where problems could occur]
  There is not old rule for Dragonfly dmi string in current hwdb.
  Which means the Dragonfly is using default HP key map:
  ```
  evdev:atkbd:dmi:bvn*:bvr*:bd*:svnHP*:pn*:*                                                                
   KEYBOARD_KEY_81=fn_esc
  ```
  This patch will change the HP machine (if product name contains pnHPEliteDragonfly*) to map 81 to mic mute key.
  If a machine (pnHPEliteDragonfly*) works good in the past then this patch may cause it's mic mute key become malfunction.
  However, this rule is confirmed/provided from HP.

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