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intord
n00b
n00b


Joined: 12 Aug 2017
Posts: 33

PostPosted: Sat May 19, 2018 8:16 pm    Post subject: Touchpad KDE bug? Reply with quote

Hi everyone, would like to share this problem i found on my laptop.

Issue: touch pad scrolling an tapping work until i close a lid on my laptop (which is configured to Lock Screen). After that, scrolling and tapping work randomly - turn on/off accidentally, but mostly its off. Yo make it work you need to restart a service/laptop etc

this is my config file located in /etc/X11/xorg.conf.d/50-synaptics.conf
Code:
Section "InputClass"                                                                                                                         
    Identifier      "touchpad catchall"
    Driver          "synaptics"
    MatchIsTouchpad "on"
    Option          "VertEdgeScroll"            "on"
    Option          "HorizEdgeScroll"          "off"
    Option          "VertTwoFingerScroll"       "off"
    Option          "TapButton1"                "1"
EndSection


what i noticed is this unstable behavior is happened when i have
Code:
kde-plasma/plasma-desktop touchpad
in /etc/portage/package.use/use. Also a Touchpad tab is available in Settings -> Input Devices with all the settings.
However if i build kde-plasma/plasma-desktop without touchpad flag (which is as it set by default), touch pad scrolling and tapping start to work as expected, and the Touchpad tab is hidden in the system settings.

Currently its built with
Code:
touchpad
on. Does it sound like a KDE bug or are there any other ways to make it work?

this is dmesg initialization:
Code:
[    4.350611] psmouse serio3: synaptics: Touchpad model: 1, fw: 7.5, id: 0x1e0b1, caps: 0xf00173/0x640000/0xa2400/0x0, board id: : 1323623
[    4.388826] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio3/input/input12


Is there anything specia labout toudhpad in xorg logs:
Code:

[    14.404] (II) config/udev: Adding input device SynPS/2 Synaptics TouchPad (/dev/input/event8)
[    14.404] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "evdev touchpad catchall"
[    14.404] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "touchpad catchall"
[    14.404] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "Default clickpad buttons"
[    14.404] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "touchpad catchall"
[    14.405] (II) Using input driver 'synaptics' for 'SynPS/2 Synaptics TouchPad'
[    14.405] (**) SynPS/2 Synaptics TouchPad: always reports core events
[    14.422] (II) synaptics: SynPS/2 Synaptics TouchPad: ignoring touch events for semi-multitouch device
[    14.422] (--) synaptics: SynPS/2 Synaptics TouchPad: x-axis range 1220 - 5716 (res 46)
[    14.422] (--) synaptics: SynPS/2 Synaptics TouchPad: y-axis range 986 - 4886 (res 80)
[    14.422] (--) synaptics: SynPS/2 Synaptics TouchPad: pressure range 0 - 255
[    14.422] (--) synaptics: SynPS/2 Synaptics TouchPad: finger width range 0 - 15
[    14.422] (--) synaptics: SynPS/2 Synaptics TouchPad: buttons: left right double triple
[    14.422] (--) synaptics: SynPS/2 Synaptics TouchPad: Vendor 0x2 Product 0x7
[    14.422] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[    14.422] (**) SynPS/2 Synaptics TouchPad: always reports core events
[    14.438] (II) XINPUT: Adding extended input device "SynPS/2 Synaptics TouchPad" (type: TOUCHPAD, id 14)
[    14.438] (**) synaptics: SynPS/2 Synaptics TouchPad: (accel) MinSpeed is now constant deceleration 2.5
[    14.438] (**) synaptics: SynPS/2 Synaptics TouchPad: (accel) MaxSpeed is now 1.75
[    14.438] (**) synaptics: SynPS/2 Synaptics TouchPad: (accel) AccelFactor is now 0.034
[    14.438] (**) SynPS/2 Synaptics TouchPad: (accel) keeping acceleration scheme 1
[    14.438] (**) SynPS/2 Synaptics TouchPad: (accel) acceleration profile 1
[    14.438] (**) SynPS/2 Synaptics TouchPad: (accel) acceleration factor: 2.000
[    14.438] (**) SynPS/2 Synaptics TouchPad: (accel) acceleration threshold: 4
[    14.438] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[    14.438] (II) config/udev: Adding input device SynPS/2 Synaptics TouchPad (/dev/input/mouse1)
[    14.438] (**) SynPS/2 Synaptics TouchPad: Ignoring device from InputClass "touchpad ignore duplicates"
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