pygame:不打开窗口/'pygame.error:没有可用的视频设备' [英] pygame: doesn't open window / 'pygame.error: No available video device'

问题描述

我目前正在尝试让 pygame 在我的 Ubuntu 20.04 机器上运行.收到错误无可用视频设备"后，我添加了以下代码行:

I am currently trying to make pygame run on my Ubuntu 20.04 machine. After getting the error 'No available video device' I added the following lines of code:

import os
os.environ['SDL_VIDEODRIVER'] = 'dummy'

现在错误信息消失了，但窗口仍然没有弹出......我使用的是 python 3.8.3 和 pygame 2.0.0.dev10.

Now the error message is gone, but the window still does not pop up... I am using python 3.8.3 and pygame 2.0.0.dev10.

有人知道我错过了什么吗?

Does somebody know what I am missing?

推荐答案

因为将 SDL_VIDEODRIVER 设置为 dummy" 它实际上不会渲染任何内容.如维基底部所述:

Because setting SDL_VIDEODRIVER to "dummy" it won't actually render anything. As stated at the bottom of the wiki:

如果您需要事件队列但不想要真正的窗口，请在调用 SDL_SetVideoMode 之前尝试 putenv("SDL_VIDEODRIVER=dummy").我发现这在使用 SDL 工具但不需要真正的视频输出设备的应用程序中很有用.

If you need an event queue but don't want a real window, try putenv("SDL_VIDEODRIVER=dummy") before you call SDL_SetVideoMode. I find this useful in apps that use SDL facilities, but don't need a real video output device.

由于您使用的是 Linux，您需要将 SDL_VIDEODRIVER 的值设置为可以找到的 Linux 视频驱动程序之一此处.

Since you are on Linux, you will need to set the value of SDL_VIDEODRIVER to one of the Linux video drivers which can be found here.

如果还是不行，你可能需要重新安装显卡驱动或者您的 SDL 软件包之一出现问题，可能需要重新安装.

If it still doesn't work, you may need to re-install your video drivers or something is wrong with one of your SDL packages and they may need to be re-installed.

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