linux-kernel - [PATCH RESEND 0/4] reduce Surface Pro 3 multitouch jitter

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Date:   Thu,  9 Aug 2018 13:39:15 -1000
From:   Joey Pabalinas <joeypabalinas@...il.com>
To:     linux-input@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Jiri Kosina <jikos@...nel.org>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Daniel Martin <consume.noise@...il.com>
Subject: [PATCH RESEND 0/4] reduce Surface Pro 3 multitouch jitter

The Surface Pro 3 firmware doesn't reliably send contact lift off
reports nor handle invalid report values gracefully.

To reduce touchscreen input jitter:
  - add MT_QUIRK_NOT_SEEN_MEANS_UP to the MT_CLS_WIN_8
  - drop invalid report values

Patches have been tested on my personal Surface Pro 3 for a
couple months without any problems, as well as being run in my
Arch Linux AUR kernel package [1] without a single complaint
so far.

[1] https://aur.archlinux.org/packages/linux-surfacepro3-git

Joey Pabalinas (4):
  HID: multitouch: add MT_QUIRK_NOT_SEEN_MEANS_UP to MT_CLS_WIN_8 quirks
  HID: multitouch: don't check HID_GROUP_MULTITOUCH_WIN_8 for serial protocol
  HID: multitouch: drop reports containing invalid values
  HID: multitouch: remove unneeded else conditional cases

 drivers/hid/hid-multitouch.c | 27 ++++++++++++++++++++-------
 1 file changed, 20 insertions(+), 7 deletions(-)

-- 
2.18.0