iMac 20" detect external monitor

Question

iMac Intel 20" EMC 2266

Model A1224 / Early 2009 / 2.66 GHz Core 2 Duo processor

crwdns2934065:0crwdne2934065:0: 1

2

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crwdns2933897:0crwdne2933897:0

Hello,

I have a little problem my imac detects an external monitor but the monitor has never been connected to what might be in your opinion?

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0

crwdns2944067:04crwdne2944067:0:

Please elaborate on why you think it is detecting an external monitor.

crwdns2934271:0Nhl 23, 2016crwdnd2934271:0 mayer crwdne2934271:0

Can you give us some background on what happened here.

Are you seeing a faint image of the desktop and its icons when you take a flashlight held on the screen at a sharp angle?

Do you have a surge suppressor or UPS? Did you get a power disruption or lightning storm?

crwdns2934271:0Nhl 24, 2016crwdnd2934271:0 Dan crwdne2934271:0

not working have the same problem.

i suppose is an hardware problem

crwdns2934271:0Nhl 24, 2016crwdnd2934271:0 Albano Doci crwdne2934271:0

@mayer because if i go in monitor option have 2 monitor option

crwdns2934271:0Nhl 27, 2016crwdnd2934271:0 Albano Doci crwdne2934271:0

Please elaborate on why you think it is detecting an external monitor. — mayer
Can you give us some background on what happened here.

Are you seeing a faint image of the desktop and its icons when you take a flashlight held on the screen at a sharp angle?

Do you have a surge suppressor or UPS? Did you get a power disruption or lightning storm? — Dan
not working have the same problem.

i suppose is an hardware problem — Albano Doci
@mayer because if i go in monitor option have 2 monitor option — Albano Doci