As already title says I have a problem with my monitor. It works fine 99% of time but sometimes, when I plug HDMI cable just nothing happen.I already had this problem and fixed it with reinstalling lightdm, and it worked fine for about 2 weeks. Today it happened again, I newly tried to reinstall lightdm but not worked.I've already tried out 90% of solutions you can find online, but no one works.Actually I'm using intel integrated gpu if it can help (even switching to nvidia driver is not working).
I'm using eOS Latest Release, installed on 512 gb SSD. As I've already wrote, I'm using intel integrated graphic card, but even with nvidia the problem continues to exist.