楼主进了一台Thinkpad T450s，触控板支持4点触控，安装了ubuntu14.04 LTS之后，触控板只剩下双指滑动了，略有不爽，各种google，百度。
真找到办法了。
首先得知了touchegg，但是各种安装不上，折腾的我心力焦悴，最后偶然在知乎上有一位伙伴说了他的电脑用xSwipe搞定了。
于是转向xSwipe，在开源项目网站上GitHub上找到了这神器。 传送门，或者复制地址：https://github.com/iberianpig/xSwipe 到地址栏打开，可能打开得很慢，楼主备份了要下载的文件，下载地址放在文章末尾了。
官方的文档是英文版，虽然推荐读者阅读原版文章，但是为了照顾英文不好的小伙伴，我找到了一片中文博客(点我访问)，或者复制地址：http://loliko.me/zai-linuxzhong-tian-jia-hong-mo-ban-shou-shi/ 到地址栏打开
下面是GitHub上的说明文档：
xSwipe
xSwipe is multitouch gesture recognizer. This script make your linux PC able to recognize swipes like a Macbook.
Usage
Before running the script, you must first do some preparations.
- Download xSwipe
- Install X11::GUITest
- Enable SHMConfig
1. Download xSwipe
Type below code, download xSwipe from github
$ cd ~
$ wget https://github.com/iberianpig/xSwipe/archive/master.zip
$ unzip master.zip
2. Install X11::GUITest
To install libx11-guitest-perl from synaptic package manager Or run the script on the terminal run as
$ sudo apt-get install libx11-guitest-perl
NOTE: If using Ubuntu14.04, or later
Install older version synaptics driver that is compatible with xSwipe.
$ sudo apt-get install -y git build-essential libevdev-dev autoconf automake libmtdev-dev xorg-dev xutils-dev libtool $ sudo apt-get remove -y xserver-xorg-input-synaptics $ git clone https://github.com/Chosko/xserver-xorg-input-synaptics.git $ cd xserver-xorg-input-synaptics $ ./autogen.sh $ ./configure --exec_prefix=/usr $ make $ sudo make install
3. Enable SHMConfig
Open /etc/X11/xorg.conf.d/50-synaptics.conf with your favorite text editor and edit it to enable SHMConfig
$ sudo gedit /etc/X11/xorg.conf.d/50-synaptics.conf
NOTE:You will need to create the /etc/X11/xorg.conf.d/ directory and create 50-synaptics.conf if it doesn‘t exist yet. $ sudo mkdir /etc/X11/xorg.conf.d/
/etc/X11/xorg.conf.d/50-synaptics.conf
Section "InputClass"
Identifier "evdev touchpad catchall"
Driver "synaptics"
MatchDevicePath "/dev/input/event*"
MatchIsTouchpad "on"
Option "Protocol" "event"
Option "SHMConfig" "on"
EndSection
To reflect SHMConfig, restart your session.
That‘s it for preparation.
Run xSwipe
To run xSwipe, type below code on terminal.
$ perl ~/xSwipe-master/xSwipe.pl
Note:You should run xSwipe.pl in same directory as "eventKey.cfg" .
You can use "swipe" with 3 or 4 fingers, they can call an event. Additionally, some gestures are avilable.
- edge-swipe : swipe with 2 fingers from outside edge(need to enable with option).
- long-press : hold pressure for 0.5 seconds with 3 or 4 fingers.
Option
-d RATE: RATE is sensitivity to swipe.Default value is 1. Shorten swipe-length by half (e.g.,$ perl xSwipe.pl -d 0.5)-m INTERVAL: INTERVAL is how often synclient monitor changes to the touchpad state. Default value is 10(ms). Set 50ms as monitoring-span. (e.g.,$ perl xSwipe.pl -m 50)-n: Natural scroll like Macbook, use "/nScroll/eventKey.cfg".-e: Enable edge-swipe
Customize
You can customize the settings for gestues to edit eventKey.cfg. Please check this article, "How to customize gesture".
Bindable gestures
- 3/4/5 fingers swipe
- 2/3/4/5 fingers long-press
- 2/3/4 fingers edge-swipe
- 2fingers edge-swipe: only swipe-left/right from right/left edge
- 3fingers edge-swipe: only swipe-down from top egde
Example shortcut keys
- go back/forward on browser (Alt+Left, Alt+Right)
- open/close a tab on browser (Ctrl+t/Ctrl+w)
- move tabs (Ctrl+Tab, Ctrl+Shift+Tab)
- move workspaces (Alt+Ctrl+Lert, Alt+Ctrl+Right, Alt+Ctrl+Up, Alt+Ctrl+Down)
- move a window (Alt+F7)
- open launcher (Alt+F8)
- open a terminal (Ctrl+Alt+t)
- close a window (Alt+F4)
Please let me know if you have any questions about this program.
我按照说明文档安装xSwipe之后，进行到最后一步
perl ~/xSwipe-master/xSwipe.pl
遇到了错误提示"Can‘t locate Smart/Comments.pm in @INC (you may need to install the Smart::Comments module) (@INC contains: /etc/perl /usr/local/lib/perl/5.18.2 /usr/local/share/perl/5.18.2 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.18 /usr/share/perl/5.18 /usr/local/lib/site_perl .) at /home/jackson/xSwipe-master/xSwipe.pl line 15."
真是蛋疼，每到最后关头就出问题。百度无果，最后还是google给了我答案，原文在这儿：https://forum.teksyndicate.com/t/perl-smart-comments/86880
做法就是，在终端下键入下列命令sudo cpan -i Smart::Comments
此时要正常联网，楼主用代理模式上的网，各种错误，不知道具体原因在哪儿，最后用手机开wifi给电脑用，心疼啊(别问我为什么没wifi，学校不给大一新生校园网)不出意外得话，应该在执行完执之前那条命令之后，就搞定了使用perl ~/xSwipe-master/xSwipe.pl
应该就可以开启触控板手势，目前我的电脑能实现三指滑动切换工作区，其它还没设置。若有其它问题，可以在评论区留言，力所能及之处定出手相助。
xSwipe下载：http://pan.baidu.com/s/1gesqHm7下载之后请先查看README.md文件，在xSwipe得其中一个子文件夹内。