From: DaytonCL Date: Sun, 14 Dec 2025 13:34:36 +0000 (+0100) Subject: HID: multitouch: add MT_QUIRK_STICKY_FINGERS to MT_CLS_VTL X-Git-Tag: v6.19-rc5~30^2~15 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ff3f234ff1dcd6d626a989151db067a1b7f0f215;p=thirdparty%2Fkernel%2Flinux.git HID: multitouch: add MT_QUIRK_STICKY_FINGERS to MT_CLS_VTL Some VTL-class touchpads (e.g. TOPS0102:00 35CC:0104) intermittently fail to release a finger contact. A previous slot remains logically active, accompanied by stale BTN_TOOL_DOUBLETAP state, causing gestures to stay latched and resulting in stuck two-finger scrolling and false right-clicks. Apply MT_QUIRK_STICKY_FINGERS to handle the unreleased contact correctly. Link: https://gitlab.freedesktop.org/libinput/libinput/-/issues/1225 Suggested-by: Benjamin Tissoires Tested-by: DaytonCL Signed-off-by: DaytonCL Signed-off-by: Benjamin Tissoires --- diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 179dc316b4b5..a0c1ad5acb67 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -393,6 +393,7 @@ static const struct mt_class mt_classes[] = { { .name = MT_CLS_VTL, .quirks = MT_QUIRK_ALWAYS_VALID | MT_QUIRK_CONTACT_CNT_ACCURATE | + MT_QUIRK_STICKY_FINGERS | MT_QUIRK_FORCE_GET_FEATURE, }, { .name = MT_CLS_GOOGLE,