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Thinkpad T440 触控板多点触控不起作用

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Thinkpad T440 触控板多点触控不起作用

我正在使用带有物理按钮的新触控板的 Thinkpad T440s。

我遇到了物理按钮（被识别为单独的 PS/2 设备）不起作用的问题。经过大量研究，我发现执行后sudo modprobe psmouse proto=imps按钮可以正常工作。

但是，这也会导致触摸板无法与多点触控滚动配合使用。有其他人遇到过这个问题吗？

以下是 xinput 的输出：

⎡ Virtual core pointer                      id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ RAPOO RAPOO 2.4G Wireless Device          id=10   [slave  pointer  (2)]
⎜   ↳ PS/2 Synaptics TouchPad                   id=13   [slave  pointer  (2)]
⎣ Virtual core keyboard                     id=3    [master keyboard (2)]
    ↳ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
    ↳ Power Button                              id=6    [slave  keyboard (3)]
    ↳ Video Bus                                 id=7    [slave  keyboard (3)]
    ↳ Power Button                              id=8    [slave  keyboard (3)]
    ↳ RAPOO RAPOO 2.4G Wireless Device          id=9    [slave  keyboard (3)]
    ↳ Integrated Camera                         id=11   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=12   [slave  keyboard (3)]
    ↳ ThinkPad Extra Buttons                    id=14   [slave  keyboard (3)]

uname -r返回3.16.0-36-generic。

我发现在添加Option "VertTwoFingerScroll" "on"到我的 catchall 部分后/etc/X11/xorg.conf.d/50-synaptics.conf，触摸板上的鼠标左键和右键现在可以上下滚动。如果我使用 modprobe 将协议更改为 imps，则不会发生改变。

这是我的 50-synaptics.conf：

Section "InputClass"
        Identifier "touchpad catchall"
        Driver "synaptics"
        MatchIsTouchpad "on"
            Option "VertTwoFingerScroll" "on"
# This option is recommend on all Linux systems using evdev, but cannot be
# enabled by default. See the following link for details:
# http://who-t.blogspot.com/2010/11/how-to-ignore-configuration-errors.html
      MatchDevicePath "/dev/input/event*"
EndSection

Section "InputClass"
        Identifier "touchpad ignore duplicates"
        MatchIsTouchpad "on"
        MatchOS "Linux"
        MatchDevicePath "/dev/input/mouse*"
        Option "Ignore" "on"
EndSection

# This option enables the bottom right corner to be a right button on
# non-synaptics clickpads.
# This option is only interpreted by clickpads.
Section "InputClass"
        Identifier "Default clickpad buttons"
        MatchDriver "synaptics"
        Option "SoftButtonAreas" "50% 0 82% 0 0 0 0 0"
#       To disable the bottom edge area so the buttons only work as buttons,
#       not for movement, set the AreaBottomEdge
#       Option "AreaBottomEdge" "82%"
EndSection

# This option disables software buttons on Apple touchpads.
# This option is only interpreted by clickpads.
Section "InputClass"
        Identifier "Disable clickpad buttons on Apple touchpads"
        MatchProduct "Apple|bcm5974"
        MatchDriver "synaptics"
        Option "SoftButtonAreas" "0 0 0 0 0 0 0 0"
EndSection

更新：

似乎当我重新启动系统时，触摸板（带多点触控）工作正常，并且 synclient 返回参数。按钮不起作用。只要我使用，modprobe -r psmouse按钮modprobe psmouse proto=imps就可以工作，但触摸板不再适用于多点触控，并且 synclient 返回unable to find a synaptics device。有没有办法只设置按钮以使用 imps 协议？

答案1

您需要升级内核。在终端中运行

sudo apt-get install linux-generic-lts-vivid

然后重新启动。

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