Bug 360943

Summary:	Can't customize touchpad's configuration
Product:	[Applications] systemsettings	Reporter:	Antoine <antoine.dumondel>
Component:	kcm_touchpad	Assignee:	Plasma Bugs List <plasma-bugs>
Status:	RESOLVED FIXED
Severity:	normal	CC:	kde, rajeeshknambiar
Priority:	NOR
Version:	5.17.5
Target Milestone:	---
Platform:	Mageia RPMs
OS:	Linux
URL:	https://framapic.org/h7WImV12C25W/e8LIEkq6QSFA.png
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Antoine 2016-03-24 15:21:41 UTC

Morning,

As you can see on the screenshot, all options are greyed out into panel of Touchpad configuration. That is the same comportment for taps | scrolling |  Pointer motion and others.
It's not possible to configure any option

Mouse (using touchpad) is working as usual, double toes for a right clic, etc. but no configuration are possible. Nothing crash.

I'm using plasma-desktop 5.6.

Cheers,

Antoine

P.S. Please apologize my language, it's not my native language.

Reproducible: Always

Steps to Reproduce:
1. Open your plasma session ;
2. Go on System Setting > Hardware > Touchpad ;
3. See that all options are greyed out.

Comment 1 Rajeesh K V 2016-03-24 19:33:48 UTC

Hi,

The reason these options greyed out is you (or the distribution) is using/installed the 'new' libinput touchpad driver. The package name is usually xorg-x11-drv-libinput.
Libinput is the unified touchpad driver for X.org and Wayland; but it exposes only few configurable options compared to the 'old'/previous synaptics driver (package xorg-x11-drv-synaptics).
If you want all the options to be individually configured, simply remove libinput driver and install synaptics driver.

Comment 2 Antoine 2016-03-25 10:56:19 UTC

Hi,

Thank you for replying.

Actually I see "synaptics" and "libinput" driver are both used.
- x11-driver-input-libinput
- x11-driver-input-synaptics

If I try to remove libinput driver, task-plasma-minimal and task-X11 have to be removed (I didn't make it, I'm trying to understood how work xorg.conf). And if I try to remove Synaptics driver, I should remove x11-driver-input.

Into /etc/X11/xorg.conf.d I see :
- 50-synaptics.conf
- 90-libinput.conf

I'm not really comfortable with this manipulation.

Thanks again, i'll search how-to.
Maybe this bug can't be closed. 

Cheers. :-)

antoine

Comment 3 Antoine 2016-03-25 11:40:25 UTC

I only have renamed 50-libinput-conf to 50-libinput-conf.old and all greyed out option are now available.

Comment 4 Rajeesh K V 2016-03-25 18:58:09 UTC

If both drivers are installed, libinput gets the preference. Either you can change the priority similar to comment#3 or simply uninstall the driver you're not using.
Touchpad KCM cannot do anything on its own, so closing the bug.