Otherwise, please fill the requested information below. And please remove anything that doesn't apply to keep things readable :)
Please post inxi -GSC -xx
output (fenced with triple backticks) OR fill information below manually
cat /etc/os-release | grep "NAME"
)lspci -nn | grep VGA
or lshw -C display -numeric
)uname -a
)glxinfo -B | grep "OpenGL version string"
)sudo X -version
)Please describe what you are doing, what you expect and what you're seeing instead. How frequent is the issue? Is it a one time occurrence? Does it appear multiple times but randomly? Can you easily reproduce it?
"It doesn't work" usually is not a helpful description of an issue. The more detail about how things are going wrong, the better.
Did it used to work? It can greatly help to know when the issue started.
dmesg