没有sudo不能在Qt应用程序中使用键盘 [英] Cannot use keyboard within Qt app without sudo

问题描述

我有一个交叉编译的嵌入式Qt应用程序，它可以在BeagleBone Black上运行.它可以正常工作，但有一件事情-如果我不直接在sudo之前的BeagleBone Black上运行，则它不接受键盘输入.这是一个问题，因为:

I have an embedded Qt application crosscompiled that runs on BeagleBone Black. It works Ok, but one thing- It doesnt accept keyboard input if i wont run in directly on BeagleBone Black preceeding with sudo. This is a problem because:

• 我无法远程调试应用程序并使用连接的键盘，因为它无法正常工作，
• 当应用程序位于rc.local文件中时，即使启动时使用了sudo，我也无法使用键盘来启动.

• I cannot remote debug application and use connected keyboard, as it doesnt work,
• I cannot use keyboard when the app is in rc.local file to boot at startup (even though sudo is used there).

此刻对我来说很关键，而且我很长一段时间都无法找到解决问题的办法.我真的很感谢与此有关的所有帮助.

This is critical for me at the moment and I cannot find solution to the problem for very long. I would really apreciate all help regarding this.

我的/etc/enviroment内容在这里:

QWS_MOUSE_PROTO=IntelliMouse:/dev/input/mouse0
QWS_KEYBOARD=LinuxInput:/dev/tty
TSLIB_CONFFILE=/etc/ts.conf
TSLIB_PLUGINDIR=/usr/lib/ts

尽管我为QWS_KEYBOARD尝试了许多不同的配置.我想使用的键盘是/dev/input/event1.

Although I have tried many different configurations for QWS_KEYBOARD. The keyboard I would like to use is /dev/input/event1.

推荐答案

我也遇到了这个问题.但是在我的情况下，我使用从Windows OS到raspberry/beaglebone的远程桌面.

I also facing this issue. But in my situation, I use remote desktop from Windows OS to raspberry / beaglebone.

我的解决方案(至少确保您知道如何在树莓派中配置ssh):

My solution (make sure at least you know how to configure ssh in raspberry) :

1. 在raspberry/beaglebone/其他嵌入式linux上安装xrdp(sudo apt-get install xrdp)
2. 在PC安装xming中(搜索sourceforge)
3. 打开XLaunch，选择多个窗口>不启动客户端>剪贴板>完成
4. 打开腻子>>会话，输入主机名/IP地址， 油灰>> SSH >> X11 >>选中启用X11转发" 油灰>>单击打开"按钮
5. 登录ssh，然后键入qcreator

1. install xrdp (sudo apt-get install xrdp) on raspberry / beaglebone / other embedded linux
2. in PC instal xming (search sourceforge)
3. open XLaunch, select multiple windows > start no client > clipboard > finish
4. open putty >> session, enter host name / IP address, putty >> SSH >> X11 >> check 'Enable X11 forwarding' putty >> click Open button
5. login ssh and then type qcreator

现在键盘应该可以了

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