[Bug 2095464] Re: [SRU] Disable pressure event for Dell haptic touchpads

[Sebastien Bacher]

Thanks, uploaded to Plucky/Oracular/Noble

** Changed in: libinput (Ubuntu)
       Status: New => Fix Committed

** Changed in: libinput (Ubuntu)
     Assignee: (unassigned) => Kai-Chuan Hsieh (kchsieh)

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https://bugs.launchpad.net/bugs/2095464

Title:
  [SRU] Disable pressure event for Dell haptic touchpads

Status in OEM Priority Project:
  New
Status in libinput package in Ubuntu:
  Fix Committed

Bug description:
  [ Impact ]

   * The touchpad vendor decide to disable pressure event from upstream
  for better user experience

   * It will disable pressure event for i2c touchpad devices:
     vid 0x06cb pid 0xcff8
     vid 0x27c6 pid 0x0f61
     vid 0x06cb pid 0xcff9
     vid 0x27c6 pid 0x0f62

   * the touchpad is not able to move cursor on Goodix touchpad (vid
  0x27cb) without disabling pressure event

   * the touchpad is easy to stalled while moving the cursor on
  Synaptics touchpad (vid 0x06cb) without disabling pressure event

  [ Test Plan ]

   * on Dell platform with touchpad that have matched vid:pid

   * left/right button should work normally

   * 2 fingers scrolling should work normally

   * 1 finger drag and drop should work normally

   * 2 fingers drag and drop should work normally

   * touchpad cursor movement should work normally

  [ Where problems could occur ]

   * The quirk match the PID VID only, it won't impact other touchpad

  [ Other Info ]

   * Upstream commits:
     https://gitlab.freedesktop.org/libinput/libinput/-/commit/af0e9a23c32d086fece58a95cb720994ad02d0b4
     https://gitlab.freedesktop.org/libinput/libinput/-/commit/3cf6c91fff5b84757792810c4016144443581da6

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