我试图在直接访问 X11 套接字的 docker 容器内运行嵌套的 X-server Xephyr,但是我遇到了我目前不理解的奇怪的图形错误。
的内容Dockerfile
只是
FROM ubuntu:14.04
RUN apt-get update
RUN apt-get install -qqy xserver-xephyr
# Clean up APT when done.
RUN apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
构建它
sudo docker build -t xephyrtest .
并运行它
sudo docker run -e DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix xephyrtest Xephyr :1
输出以下内容:
Xephyr unable to use SHM XImages
Initializing built-in extension Generic Event Extension
Initializing built-in extension SHAPE
Initializing built-in extension MIT-SHM
Initializing built-in extension XInputExtension
Initializing built-in extension XTEST
Initializing built-in extension BIG-REQUESTS
Initializing built-in extension SYNC
Initializing built-in extension XKEYBOARD
Initializing built-in extension XC-MISC
Initializing built-in extension SECURITY
Initializing built-in extension XINERAMA
Initializing built-in extension XFIXES
Initializing built-in extension RENDER
Initializing built-in extension RANDR
Initializing built-in extension COMPOSITE
Initializing built-in extension DAMAGE
Initializing built-in extension MIT-SCREEN-SAVER
Initializing built-in extension DOUBLE-BUFFER
Initializing built-in extension RECORD
Initializing built-in extension DPMS
Initializing built-in extension Present
Initializing built-in extension DRI3
Initializing built-in extension X-Resource
Initializing built-in extension XVideo
Initializing built-in extension XVideo-MotionCompensation
Initializing built-in extension SELinux
Initializing built-in extension GLX
[dix] Could not init font path element /usr/share/fonts/X11/cyrillic, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/100dpi/:unscaled, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/75dpi/:unscaled, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/Type1, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/100dpi, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/75dpi, removing from list!
在这里,第一行Xephyr unable to use SHM XImages
似乎是最重要的,因为它没有显示在 Xephyr 正常工作的主机上。
尽管会弹出 Xephyr 窗口,但使用该:1
显示屏的应用程序会出现奇怪的故障。例如DISPLAY=:1 gedit
看起来像这样(当鼠标在窗口内移动时输出会迅速变化):
是什么SHM XImages
意思,我该如何解决它在容器中的不可用性?