新的Elantech触摸屏缺乏多点触摸(最新的内核)

Question

我正在运行ubuntu gnome 16.04.1在我的惠普展馆ab048tx有一个Elantech触摸屏。我已经尝试过各种可在互联网上使用的dkms补丁(包括psmouse-elantech-x551c和psmouse-elantech-v7)，但似乎没有什么东西能让多点接触付诸行动。基本功能工作(移动，单击，点击和右击)。知道该怎么做吗？

cat /proc/bus/input/设备的(部分)输出如下：

I: Bus=0011 Vendor=0002 Product=0001 Version=0000
N: Name="PS/2 Elantech Touchpad"
P: Phys=isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input5
U: Uniq=
H: Handlers=mouse0 event6 
B: PROP=1
B: EV=7
B: KEY=70000 0 0 0 0
B: REL=3

对于demsg elantech，它是：

[    2.123958] psmouse serio1: elantech: unknown hardware version, aborting...
[    2.429095] input: PS/2 Elantech Touchpad as /devices/platform/i8042/serio1/input/input5
[ 2506.145724] psmouse serio1: elantech: unknown hardware version, aborting...
[ 2506.449970] input: PS/2 Elantech Touchpad as /devices/platform/i8042/serio1/input/input20

对于synclient -l：

Couldn't find synaptics properties. No synaptics driver loaded?

Xorg.0.log的相关输出：

[    28.346] (II) config/udev: Adding input device PS/2 Elantech Touchpad (/dev/input/event6)
[    28.346] (**) PS/2 Elantech Touchpad: Applying InputClass "evdev pointer catchall"
[    28.347] (II) systemd-logind: got fd for /dev/input/event6 13:70 fd 38 paused 0
[    28.347] (II) Using input driver 'evdev' for 'PS/2 Elantech Touchpad'
[    28.347] (**) PS/2 Elantech Touchpad: always reports core events
[    28.347] (**) evdev: PS/2 Elantech Touchpad: Device: "/dev/input/event6"
[    28.347] (--) evdev: PS/2 Elantech Touchpad: Vendor 0x2 Product 0x1
[    28.347] (--) evdev: PS/2 Elantech Touchpad: Found 3 mouse buttons
[    28.347] (--) evdev: PS/2 Elantech Touchpad: Found relative axes
[    28.347] (--) evdev: PS/2 Elantech Touchpad: Found x and y relative axes
[    28.347] (II) evdev: PS/2 Elantech Touchpad: Configuring as mouse
[    28.347] (**) evdev: PS/2 Elantech Touchpad: YAxisMapping: buttons 4 and 5
[    28.347] (**) evdev: PS/2 Elantech Touchpad: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
[    28.347] (**) Option "config_info" "udev:/sys/devices/platform/i8042/serio1/input/input5/event6"
[    28.347] (II) XINPUT: Adding extended input device "PS/2 Elantech Touchpad" (type: MOUSE, id 13)
[    28.347] (II) evdev: PS/2 Elantech Touchpad: initialized for relative axes.
[    28.347] (**) PS/2 Elantech Touchpad: (accel) keeping acceleration scheme 1
[    28.347] (**) PS/2 Elantech Touchpad: (accel) acceleration profile 0
[    28.347] (**) PS/2 Elantech Touchpad: (accel) acceleration factor: 2.000
[    28.347] (**) PS/2 Elantech Touchpad: (accel) acceleration threshold: 4
[    28.347] (II) config/udev: Adding input device PS/2 Elantech Touchpad (/dev/input/mouse0)
[    28.347] (II) No input driver specified, ignoring this device.
[    28.347] (II) This device may have been added with another device file.

我试过使用mod探针psmouse proto=imps，但是它被检测为PS/2通用鼠标，但仍然什么也没有。evdev目前正在处理触摸屏，我也尝试使用libinput，但它不起作用。

如果我试图使用/usr/share/X11/xorg.conf.d强制使用"synaptics“驱动程序，触摸屏就会完全停止工作。

编辑:我的设备有一个触摸屏(检测到半径)

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Answer 1

如果有人发现这一点，如交叉发布的这里，更新内核到4.4.0-38修复了这个问题。