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21:9 monitor goes fuzzy on DVI-D but is good on HDMI. Why?

HarrisonC
By HarrisonC
in Troubleshooting
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So I bought an LG 29UM65 a few months ago and when I first got the monitor I found that when I plugged it in via DVI-D to my GPU it would make the screen very fuzzy and unusable (see images of issue). I contacted LG and they were useless suggesting a new DVI-D cable, which works find on my old monitor. I plugged it in via HDMI though and it work perfectly. I have had a clear out today and wanted to try and fix the issue. I wondered if anyone has had an issue like this before and what I could try to do in order to fix it.

 

Thanks,

Harrison

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bad DVI cable?

|Casual Rig| CPU: i5-6600k |MoBo: ROG Gene  |GPU: Asus 670 Direct CU2 |RAM: RipJaws 2400MHz 2x8GB DDR4 |Heatsink: H100i |Boot Drive: Samsung Evo SSD 240GB|Chassis:BitFenix Prodigy |Peripherals| Keyboard:DasKeyboard, Cherry MX Blue Switches,|Mouse: Corsair M40

|Server Specs| CPU: i7-3770k [OC'd @ 4.1GHz] |MoBo: Sabertooth Z77 |RAM: Corsair Vengeance 1600MHz 2x8GB |Boot Drive: Samsung 840 SSD 128GB|Storage Drive: 4 WD 3TB Red Drives Raid 5 |Chassis:Corsair 600t 

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  • Author

Is it fine with other stuff?

 

I dont have another device with DVI output

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bad DVI cable?

 

 

Looks like a textbook bad cable (or bad connections on one end I guess).

 

Just bought a new cable. Will see how it performs

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