我之前用的是openSUSE15.2系统，最近升级到16.1了。
问题一：用myrlyn安装工具时，发现一个小问题，搜索框输入libopenssl，结果中不会显示libopenssl-devel，只有输入完整的libopenssl-devel，搜索结果才会显示libopenssl-devel；Search in只勾选了Name，Search Mode选择了Contains.
问题二：kdesu执行后会打印一个log：
[cqs@localhost:~]$ kdesu dolphin
qt.qpa.services: Failed to register with host portal QDBusError("org.freedesktop.portal.Error.Failed", "Could not register app ID: Unable to open /proc/56850/root")
[cqs@localhost:~]$ kdesu kate
qt.qpa.services: Failed to register with host portal QDBusError("org.freedesktop.portal.Error.Failed", "Could not register app ID: Unable to open /proc/56929/root")
上面执行了2条指令，输入sudo密码后，dolphin可以打开，但是kate打不开，不能使用kdesu打开kate吗。同时我发现，改用sudo打开dolphin有问题：
[cqs@localhost:~]$ sudo dolphin
[sudo] password for cqs:
qt.qpa.xcb: could not connect to display
qt.qpa.plugin: From 6.5.0, xcb-cursor0 or libxcb-cursor0 is needed to load the Qt xcb platform plugin.
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
Available platform plugins are: offscreen, minimal, xcb, eglfs, minimalegl, vnc, vkkhrdisplay, wayland-brcm, wayland-egl, wayland, linuxfb.
Aborted