Bug 72841

Summary:	Unable to map touch device to output
Product:	Wayland	Reporter:	U. Artie Eoff <ullysses.a.eoff>
Component:	weston	Assignee:	Wayland bug list <wayland-bugs>
Status:	VERIFIED INVALID	QA Contact:
Severity:	major
Priority:	medium
Version:	unspecified
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:
Attachments:	weston log weston udev rules

Description U. Artie Eoff 2013-12-18 19:33:21 UTC

Weston does not seem to honor WL_OUTPUT setting in udev rules anymore.  When WL_OUTPUT is specified, WAYLAND_DEBUG does not indicate any touch events occur when touching the device.  However, if I remove the WL_OUTPUT directive from the udev rules, WAYLAND_DEBUG shows touch events.

Reproduced with the following setup:

A calibrated single touchscreen device plugged into VGA1.
$ lsusb
  Bus 002 Device 005: ID 0eef:0001 D-WAV Scientific Co., Ltd eGalax TouchScreen

kernel 3.11.10-301.fc20.x86_64
systemd (master) heads/master-0-g63966da
wayland (master) 1.3.91-0-g01bde63
drm (master) libdrm-2.4.50-0-g4c5de72
mesa (master) heads/master-0-ga9bf599
libva (master) libva-1.2.1-0-g88ed1eb
intel-driver (master) 1.2.1-0-g8f306e3
weston (master) heads/master-0-gdf42a80

Comment 1 U. Artie Eoff 2013-12-18 19:34:36 UTC

Created attachment 90944 [details]
weston log

Comment 2 U. Artie Eoff 2013-12-18 19:35:56 UTC

The weston log shows messages:

touch event received with 0 points downbut no surface focused

while occasionally getting a wl_touch@29.up(4, 120806958, 0) event.

Comment 3 U. Artie Eoff 2013-12-18 19:38:49 UTC

Created attachment 90945 [details]
weston udev rules

Comment 4 U. Artie Eoff 2013-12-18 20:05:14 UTC

Seems to work fine with a multitouch device

Comment 5 U. Artie Eoff 2014-01-07 17:07:55 UTC

Root caused this issue to a faulty single-touch display device.

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