Bug 85836 - Handle fake MT devices
Summary: Handle fake MT devices
Status: RESOLVED FIXED
Alias: None
Product: Wayland
Classification: Unclassified
Component: libinput (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Wayland bug list
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Reported: 2014-11-04 06:50 UTC by Peter Hutterer
Modified: 2014-11-10 00:15 UTC (History)
2 users (show)

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i915 platform:
i915 features:

Attachments
MS Surface 2 touch cover evemu recording (19.99 KB, text/plain)
2014-11-04 06:50 UTC, Peter Hutterer 		Details
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Description Peter Hutterer 2014-11-04 06:50:39 UTC 
Created attachment 108872 [details]
MS Surface 2 touch cover evemu recording

Devices with ABS_MT_SLOT and ABS_MT_SLOT-1 set look like MT devices but are just normal absolute devices. This is caused by the kernel's ABS_MT range simply not allowing for enough axes.
Comment 1 Peter Hutterer 2014-11-05 05:58:15 UTC 
4-item patchset here: http://lists.freedesktop.org/archives/wayland-devel/2014-November/018038.html
Comment 2 Peter Hutterer 2014-11-10 00:15:23 UTC 
commit f04f58213fb50dbeeafb7f4a465bb9b3fc3632e0
Author: Peter Hutterer <peter.hutterer@who-t.net>
Date:   Wed Nov 5 11:01:45 2014 +1000

    evdev: handle fake MT devices

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