After upgrading to Ubuntu 17.10 I noticed some of my screencasting applications are not working, for example screencasting tools like SimpleScreenRecorder and vokoscreen. (link)
Also I noticed features like screenshot from GIMP is not working properly, producing blank screenshots (link). Shutter too is producing glitchy screenshots (link).
为什么会发生这种情况，我该如何解决？
最佳答案
默认情况下，Ubuntu 17.10允许用户在Wayland会话中登录GNOME环境。您可以通过在终端中运行以下命令来检查是否已登录Wayland会话而不是Xorg（X11）会话：
echo $XDG_SESSION_TYPE
与Wayland不兼容但仍在XWayland兼容性层下运行的应用程序。但是，“过多”依赖和/或控制X11服务器（屏幕捕获/记录等）的高级应用程序可能无法在Wayland会话中运行。
As a workaround you may switch back to an Xorg session.
