ubuntu 17.04/Debian 10无法运行gparted，错误信息“Gtk-WARNING **: cannot open display: :0.0”,具体信息如下：
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~$ sudo gparted Created symlink /run/systemd/system/-.mount → /dev/null. Created symlink /run/systemd/system/home-longsky-mytest.mount → /dev/null. Created symlink /run/systemd/system/media-longsky-A624C9D724C9AB1F.mount → /dev/null. Created symlink /run/systemd/system/run-user-1000.mount → /dev/null. Created symlink /run/systemd/system/tmp.mount → /dev/null. No protocol specified (gpartedbin:5665): Gtk-WARNING **: cannot open display: :0.0 Removed /run/systemd/system/-.mount. Removed /run/systemd/system/home-longsky-mytest.mount. Removed /run/systemd/system/media-longsky-A624C9D724C9AB1F.mount. Removed /run/systemd/system/run-user-1000.mount. Removed /run/systemd/system/tmp.mount. |
具体的解释以及解决方法如下：
If running Ubuntu 17.10/Debian 10 or newer, this issue can arise when an application has not been updated with full support for Wayland. As a workaround until the application is updated, you can run
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$ xhost +SI:localuser:root |
which will allow the root user to display applications on your desktop.
为了保证每次启动脚本都可以自动执行，可以把上面的命令加入到.bashrc:
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$ sed -i '$a\xhost +SI:localuser:root' ~/.bashrc |