Suddenly after trying wayland and switching back to Xorg, middle button emulation stops of working.Below my system information: OS: Fedora 25 TwentyFive Kernel: x86_64 Linux 4.10.8-200.fc25.x86_64 Shell: bash DE: KDE 5.33.0 / Plasma 5.8.6 WM: KWin WM Theme: Auroraelibinput shows this about touchpad as follows:Device:           SynPS/2 Synaptics TouchPadKernel:           /dev/input/event6Group:            7Seat:             seat0, defaultSize:             98.04x48.03mmCapabilities:     pointer Tap-to-click:     disabledTap-and-drag:     enabledTap drag lock:    disabledLeft-handed:      disabledNat.scrolling:    disabledMiddle emulation: n/aCalibration:      n/aScroll methods:   *two-finger edge Click methods:    noneDisable-w-typing: enabledAccel profiles:   noneRotation:         n/axinput says:xinput list-props 12Device 'SynPS/2 Synaptics TouchPad':        Device Enabled (115):   1        Coordinate Transformation Matrix (117): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000        libinput Tapping Enabled (252): 0        libinput Tapping Enabled Default (253): 0        libinput Tapping Drag Enabled (254):    1        libinput Tapping Drag Enabled Default (255):    1        libinput Tapping Drag Lock Enabled (256):       0        libinput Tapping Drag Lock Enabled Default (257):       0        libinput Tapping Button Mapping Enabled (258):  1, 0        libinput Tapping Button Mapping Default (259):  1, 0        libinput Accel Speed (260):     0.000000        libinput Accel Speed Default (261):     0.000000        libinput Natural Scrolling Enabled (262):       0        libinput Natural Scrolling Enabled Default (263):       0        libinput Send Events Modes Available (237):     1, 1        libinput Send Events Mode Enabled (238):        0, 0        libinput Send Events Mode Enabled Default (239):        0, 0        libinput Left Handed Enabled (264):     0        libinput Left Handed Enabled Default (265):     0        libinput Scroll Methods Available (266):        1, 1, 0        libinput Scroll Method Enabled (267):   1, 0, 0        libinput Scroll Method Enabled Default (268):   1, 0, 0        libinput Disable While Typing Enabled (269):    1        libinput Disable While Typing Enabled Default (270):    1        Device Node (240):      /dev/input/event6        Device Product ID (241):        2, 7        libinput Drag Lock Buttons (271):       <no items>        libinput Horizontal Scroll Enabled (272):       1I can't set it by hand:xinput set-prop  '12' 'libinput Middle Emulation Enabled' 1property 'libinput Middle Emulation Enabled' doesn't exist, you need to specify its type and formatIs there a conflict between Wayland and Xorg? How can I reset the middle button emulation of mousepad?UPDATEI've found libinput-debug-events outputs:-event6   POINTER_BUTTON    +2.50s      BTN_MIDDLE (274) pressed, seat count: 1 event6   POINTER_BUTTON    +2.72s      BTN_MIDDLE (274) released, seat count: 0So it's matter of paste problem (in fact, text is copied in klipper), any ideas?
Paste with middle button emulation does not work
xorg;mouse;clipboard;wayland