This bug was fixed in the package libinput - 1.26.2-1ubuntu0.24.10.1
---------------
libinput (1.26.2-1ubuntu0.24.10.1) oracular; urgency=medium
* Disable pressure event for Dell haptic touchpads (LP: #2095464)
d/p/0001-quirks-add-quirk-for-Dell-Haptics-Touchpad.patch
d/p/0001-quirks-add-quirks-for-Dell-laptop-with-Goodix-Touchp.patch
-- Kai-Chuan Hsieh <kaichuan.hs...@canonical.com> Thu, 13 Feb 2025
13:50:15 +0800
** Changed in: libinput (Ubuntu Oracular)
Status: Fix Committed => Fix Released
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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 Released
Status in libinput source package in Noble:
Fix Released
Status in libinput source package in Oracular:
Fix Released
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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