Install Steam						
					
				
				
									login
											 | 
						language
						
																																					简体中文 (Simplified Chinese)
																													繁體中文 (Traditional Chinese)
																													日本語 (Japanese)
																													한국어 (Korean)
																													ไทย (Thai)
																													Български (Bulgarian)
																													Čeština (Czech)
																													Dansk (Danish)
																													Deutsch (German)
																																							Español - España (Spanish - Spain)
																													Español - Latinoamérica (Spanish - Latin America)
																													Ελληνικά (Greek)
																													Français (French)
																													Italiano (Italian)
																													Bahasa Indonesia (Indonesian)
																													Magyar (Hungarian)
																													Nederlands (Dutch)
																													Norsk (Norwegian)
																													Polski (Polish)
																													Português (Portuguese - Portugal)
																													Português - Brasil (Portuguese - Brazil)
																													Română (Romanian)
																													Русский (Russian)
																													Suomi (Finnish)
																													Svenska (Swedish)
																													Türkçe (Turkish)
																													Tiếng Việt (Vietnamese)
																													Українська (Ukrainian)
																									Report a translation problem
							
						
											

then reinstall graphic driver nvidia then advance install and make clean install then option is there, and ofc cable check that it attached as it should , more issue that its plug not is loose attached.
check heat temp maybe this is part of the issue.
OC also possible why it do it.
If it doesn't work, clearly, it's the monitor.
If it just doesn't work on the first computer, your video card may be failing. Try putting it in a different computer if you can, that's the easiest way to actually troubleshoot it.
Update drivers, but yeah all of what Iceira says is important to note: it could be overheating, need a new plug, cleaning, etc.