Public bug reported:
[Impact]
Multitouch feature is not enabled on some platforms with new Win8
precision touchpad because it can't fetch the report from the device. In
worst case it can even break the multitouch device.
[Fix]
There's one commit to fix this issue:
commit 171202b6fee80d777d18bb8a53b3e4361d97f389
Author: Mika Westerberg <mika.westerb...@linux.intel.com>
Date: Wed Oct 7 15:33:43 2015 +0300
HID: multitouch: Fetch feature reports on demand for Win8 devices
In addition, this commit may cost some issue on ELAN touchpad, and
there's another commit to improve the fix:
commit e47b1e449ea70d76c38a50c04cde60a72bc7ebde
Author: Benjamin Tissoires <benjamin.tissoi...@redhat.com>
Date: Tue Dec 1 12:41:38 2015 +0100
HID: multitouch: fix input mode switching on some Elan panels
Both commits can be clean picked, and are already in Xenial.
[Test]
The patched Vivid kernel is tested on two platforms and both worked
before and after suspend.
** Affects: hwe-next
Importance: Undecided
Status: New
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Phidias (phidias-chiang)
Status: New
** Tags: vivid
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https://bugs.launchpad.net/bugs/1560835
Title:
Enable multitouch function on precision touchpad for Vivid
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