What is the difference in the meaning of following sentences (I'm asking for detailed anlaysis of these sentences)   If it rains, I will stay at home. If it should rain, I will stay at home. If it should happen to rain, I will stay at home If it happens to rain, I will stay at home.  Can I say 'there is no difference in the meaning among 2 ,3 and 4 sentences ? There is no difference in the meaning and usage among 'should', 'happen to' or should happen to' together. Do they all mean 'by chance' ?   Again , i would like to know if the following sentences are grammatically correct or not:  1.If she should happen to read the newspaper, she would see your article.  2.If they should agree to come ,we would be delighted.  Source :perfect English grammar.com in Advanced conditionals Explained (pdf )
I'm a bit familarized with conditional sentences. But the following sentences with 'should' and 'happen to' are quite confusing too me. They are:   If it should rain, I will stay at home. 2.If it should happen to rain, I'll stay at home   If it happens to rain, I'll stay at home.    What are the meaings of those sentences ? Do they all mean the same ? Thank you a lot in Advance for your answer.
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EDIT:  While this solution is not perfect I realized, it works for now:  On the  question, user Michael K mentions that:  " Okay another way would be to disable the lightdm service in init:  /etc/init/lightdm.conf   in there there is a section like this:  start on (filesystem and started dbus and (drm-device-added card0 PRIMARY_DEVICE_FOR_DISPLAY=1 or stopped udev-fallback-graphics))   "  While this worked perfectly, I can't access the GUI with the startx command - the system just crashes. And I guess I'll need to uncomment the section to load startx.  Considering the fact that I want to keep the server running for as long as possible, having to restart it every time I want to log in the GUI is kinda unproductive.  EDIT2:  I guess it's possible simply to kill the GUI (  ) when I log in the system, it's still counter productive, but it works too.   EDIT3:   Michael K's reply worked fine. 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