Bug 353964 - dashboard can not be used with a touchscreen
Summary: dashboard can not be used with a touchscreen
Status: RESOLVED DUPLICATE of bug 366527
Alias: None
Product: kdeplasma-addons
Classification: Plasma
Component: Application Dashboard (show other bugs)
Version: 5.4.2
Platform: openSUSE Linux
: NOR major
Target Milestone: ---
Assignee: Marco Martin
URL:
Keywords:
Depends on: 352173
Blocks:
  Show dependency treegraph
 
Reported: 2015-10-16 14:06 UTC by Stéphane ANCELOT
Modified: 2018-02-20 15:29 UTC (History)
7 users (show)

See Also:
Latest Commit:
Version Fixed In:


Attachments
Video example of touchscreen tap-clicks not launching applications on dashboard (876.70 KB, video/webm)
2018-02-14 05:34 UTC, Andrew Crouthamel
Details

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Description Stéphane ANCELOT 2015-10-16 14:06:30 UTC
Hi,
I am using a 19inch touchscreen with the kde 5 interface.

Once the dashboard is displayed, you have to type twice to activate a button and once agin to select the function.

The dashboard can not being used.

may be related to Bug 352173
Comment 1 David Edmundson 2015-10-16 16:50:58 UTC
So if you tap twice it works as expected?
Comment 2 Stéphane ANCELOT 2015-10-19 07:48:46 UTC
I can not tell that typing twice will work as expected.
The behaviour is sporadic .

I made a video :
https://drive.google.com/file/d/0B2bN5i_rCBsIVjF6WUNUM2FMUFU/view?usp=sharing

Please advice if you need further informations like xev and so on .
Comment 3 Stéphane ANCELOT 2015-11-10 14:52:11 UTC
It seems crazy, since the classic launcher works like a charm with touchscreen !
Comment 4 Andrew Crouthamel 2018-02-14 05:33:37 UTC
I have the same issue right now with the Application Dashboard. My touchscreen works for the panel, normal apps, etc. just fine. But the dashboard does not complete the click. When I tap, it selects the icon for a second and highlights it with the blue selection box. But them immediately closes the dashboard and does not launch the application.

I've attached a video, you can see the mouse cursor jumping around where I register tap-clicks.

This is always reproducible.

KDE Plasma Version: 5.12.0
KDE Frameworks Version: 5.42.0
Qt Version: 5.9.3
Kernel Version 4.13.0-32-generic
OS Type: 64-bit
Comment 5 Andrew Crouthamel 2018-02-14 05:34:19 UTC
Created attachment 110640 [details]
Video example of touchscreen tap-clicks not launching applications on dashboard
Comment 6 Stéphane ANCELOT 2018-02-14 13:06:32 UTC
This problem may be related to the touchschreen driver used. In any case, the only difference with a mouse will be the mouse emulation button timings . in my case, it is a penmount driver. please can you tell which one is your one ?
Comment 7 Andrew Crouthamel 2018-02-14 15:30:48 UTC
(In reply to Stéphane ANCELOT from comment #6)
> This problem may be related to the touchschreen driver used. In any case,
> the only difference with a mouse will be the mouse emulation button timings
> . in my case, it is a penmount driver. please can you tell which one is your
> one ?

It looks like xhci_hcd. Here are some outputs:

less /proc/bus/input/devices

I: Bus=0003 Vendor=04f3 Product=20d0 Version=0110
N: Name="ELAN Touchscreen"
P: Phys=usb-0000:00:14.0-4/input0
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0/0003:04F3:20D0.0001/input/input12
U: Uniq=
H: Handlers=mouse1 event11 
B: PROP=2
B: EV=b
B: KEY=400 0 0 0 0 0
B: ABS=3273800000000003


dmesg

[    2.180333] usb 1-4: new full-speed USB device number 5 using xhci_hcd
[    2.323702] usb 1-4: New USB device found, idVendor=04f3, idProduct=20d0
[    2.323704] usb 1-4: New USB device strings: Mfr=4, Product=14, SerialNumber=0
[    2.323705] usb 1-4: Product: Touchscreen
[    2.323705] usb 1-4: Manufacturer: ELAN
[    9.719804] input: ELAN Touchscreen as /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0/0003:04F3:20D0.0001/input/input12
[    9.727380] hid-multitouch 0003:04F3:20D0.0001: input,hiddev0,hidraw0: USB HID v1.10 Device [ELAN Touchscreen] on usb-0000:00:14.0-4/input0
Comment 8 Andrew Crouthamel 2018-02-14 15:45:22 UTC
Also, I believe this bug was originally filed in the wrong area and may be the reason why it has languished. I believe it should be under kdeplasma-addons > Application Dashboard.

I also found the following bug, filed after yours, but has a lot of other comments and information. https://bugs.kde.org/show_bug.cgi?id=366527
Comment 9 Stéphane ANCELOT 2018-02-15 08:05:30 UTC
bug ticket moved to kdeplasma-addons.
Comment 10 Stefan Brüns 2018-02-19 00:35:50 UTC
Likely duplicate of kde#366527 and thus closed fixed.
Comment 11 Patrick Silva 2018-02-20 15:29:35 UTC
after fix for bug 366527 I can use dashboard without any problem with my laptop touch screen.

*** This bug has been marked as a duplicate of bug 366527 ***