我需要以 root 身份运行 IDE 才能访问串行端口。
该命令是包文件夹内的 ./arduino。
在 Fedora 上,这工作正常,但在 Archlinux 上,过程会发生冲突,输出如下:
No protocol specified
Exception in thread "main" java.awt.AWTError: Can't connect to X11 window server using ':0' as the value of the DISPLAY variable.
at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
at sun.awt.X11GraphicsEnvironment.access$200(X11GraphicsEnvironment.java:65)
at sun.awt.X11GraphicsEnvironment$1.run(X11GraphicsEnvironment.java:115)
at java.security.AccessController.doPrivileged(Native Method)
at sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:74)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:260)
at java.awt.GraphicsEnvironment.createGE(GraphicsEnvironment.java:102)
at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:81)
at sun.awt.X11.XToolkit.<clinit>(XToolkit.java:123)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:260)
at java.awt.Toolkit$2.run(Toolkit.java:860)
at java.awt.Toolkit$2.run(Toolkit.java:855)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:854)
at processing.core.PApplet.<clinit>(Unknown Source)
at processing.app.Preferences.save(Preferences.java:747)
at processing.app.Preferences.init(Preferences.java:250)
at processing.app.Base.main(Base.java:117)
答案1
我猜你正在使用 KDE。您需要使用该kdesu
命令而不是sudo
使用 X 的程序。