Disabling animations was not a real solution.
Apparently disabling/enabling anomations using compiz config resets something and artifacts disappear but only until next suspend/resume.
So it's a good workaround to avoid a restart the system but it does not solve the problem.
Disabling animations was not a real solution.
Apparently disabling/enabling anomations using compiz config resets something and artifacts disappear but only until next suspend/resume.
So it's a good workaround to avoid a restart the system but it does not solve the problem.