Computer monitor showing lines suddenly?

[carmichael_12]

This is my set up https://ca.pcpartpicker.com/list/p7dg6h
I left for dinner ate and came back to my main monitor showing this
http://imgur.com/c6vGgat
http://imgur.com/qUFYyyX
and this is how it is all connected on IO 
http://imgur.com/SDRJzeW 
The hdmi cable is the main monitor 
when the hdmi cable is removed my secondary monitor running off of the DVI works.
i tried a different cable but same result.
Anyone have any ideas whats going on?

[carmichael_12]

talking to lg support and plugged monitor into laptop still not working

 

[vaiwalker]

might be gpu error. try using the onboard display

[carmichael_12]

10 hours ago, vaiwalker said:

might be gpu error. try using the onboard display

plugged into laptop as well, still had the lines(so not gpu) 

[vaiwalker]

11 hours ago, carmichael_12 said:

plugged into laptop as well, still had the lines(so not gpu) 

well, seems like its the monitor if it does that even during post. how does it look like in bios? but ive seen situations like this where it could be the cable as well, does jiggling the display cable make a difference or that patterns remain the same?

[carmichael_12]

cant even get into bios while using that monitor just green lines all over, using different monitor right now on same pc no issue, tried different cable with the monitor with the lines , still no change. Also tried  A vga cable to make sure it wasnt the port on the monitor.

[Syncrosys]

Hopefully your monitor is still under warranty. I had that myself on an LG and they replaced it. 

[carmichael_12]

18 hours ago, Syncrosys said:

Hopefully your monitor is still under warranty. I had that myself on an LG and they replaced it. 

Yea talked to LG rep and should be able to get it warrantied, only had it for 6months. Need to drive it to another town in order to get it serviced however

[Syncrosys]

Awesome! At least you know the issue and it will be fixed.

 

Glad to hear bud.

 

Cheers!