Python Qt无法使用tox连接到虚拟帧缓冲区

yml版本有效（在CI和本地手动输入

脚本
命令）

tox版本不起作用（我在本地运行时使用了
python3-mtox-rctox.ini-efoobar-v
）

初始错误：

foobar run-test: commands[2] | sh -c 'Xvfb ":3" -screen 0 1920x1080x16 &'
[17538] /home/localadmin/Documents/foobar/src/foobar$ /bin/sh -c 'Xvfb ":3" -screen 0 1920x1080x16 &'
foobar run-test: commands[3] | pytest -sv tests --ignore tests/gui/functional
[17540] /home/localadmin/Documents/foobar/src/foobar$ /home/localadmin/Documents/foobar/src/foobar/.tox/foobar/bin/pytest -sv tests --ignore tests/gui/functional
_XSERVTransSocketUNIXCreateListener: ...SocketCreateListener() failed
_XSERVTransMakeAllCOTSServerListeners: server already running
(EE) 
Fatal server error:
(EE) Cannot establish any listening sockets - Make sure an X server isn't already running(EE) 

产生的错误：

qt.qpa.xcb: could not connect to display ":3"
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.

我需要解决的第一件事是，为什么我总是得到
\u xservtransmakeallcotserverlisteners:服务器已经在运行了
。在
Display=“：X”
中选择数字
X
之前，我检查/tmp和/tmp/.X11 unix以确保不存在
X
屏幕，如果存在，则将其删除

我想也许我需要在同一个命令中运行它们（我认为
[17538]
和
[17540]
是进程（？）。没有骰子

foobar run-test: commands[2] | sh -c 'Xvfb ":3" -screen 0 1920x1080x16 &'
[17538] /home/localadmin/Documents/foobar/src/foobar$ /bin/sh -c 'Xvfb ":3" -screen 0 1920x1080x16 &'
foobar run-test: commands[3] | pytest -sv tests --ignore tests/gui/functional
[17540] /home/localadmin/Documents/foobar/src/foobar$ /home/localadmin/Documents/foobar/src/foobar/.tox/foobar/bin/pytest -sv tests --ignore tests/gui/functional
_XSERVTransSocketUNIXCreateListener: ...SocketCreateListener() failed
_XSERVTransMakeAllCOTSServerListeners: server already running
(EE) 
Fatal server error:
(EE) Cannot establish any listening sockets - Make sure an X server isn't already running(EE) 

qt.qpa.xcb: could not connect to display ":3"
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.