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lines on the screen

DSD27
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This started more than a month ago, everytime I start my pc, this lines will display on the screen for a while, it's becoming worse with time, more lines and a little longer, tehn after a while it's fine, if I restart my pc it will flocker a line or two, it's after being off for a while that does it more.

https://photos.app.goo.gl/hM99s9p1qWW7vGKz8

What can it be? This monitor has less than a year. It's an AOC Q3279VWF VA 31.5" QHD 75Hz FreeSync.

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3 minutes ago, DSD27 said:

This started more than a month ago, everytime I start my pc, this lines will display on the screen for a while, it's becoming worse with time, more lines and a little longer, tehn after a while it's fine, if I restart my pc it will flocker a line or two, it's after being off for a while that does it more.

https://photos.app.goo.gl/hM99s9p1qWW7vGKz8

What can it be? This monitor has less than a year. It's an AOC Q3279VWF VA 31.5" QHD 75Hz FreeSync.

do the lines show up even with no video input? if so it's most likely either the panel or the cable leading into the panel, had the same issue on one of my older laptops, had to take it apart and re-solder the ribbon cable 

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16 minutes ago, Emanbaird said:

do the lines show up even with no video input? if so it's most likely either the panel or the cable leading into the panel, had the same issue on one of my older laptops, had to take it apart and re-solder the ribbon cable 

The lines only show up after entering windows, no lines on the UEFI or boot screen.

I forgot to mention it's not the GPU, I switchted to another GPU yesterday, so I guess that can be reuled out.

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I can't see the picture because i'm at work, it could be a bad port on the video-card or the monitor, it could also be the cord itself, check and see if it happens at all resolutions or just a couple 

Edited by Emanbaird
messed up cord

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It's not a picture, it's a video. Ok, I will check maybe with HDMI, I don't have another DisplayPort cable or port.

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Thats looks like interference tbh. i would initialy suspect the cable.

CPU: Intel i7 3930k w/OC & EK Supremacy EVO Block | Motherboard: Asus P9x79 Pro  | RAM: G.Skill 4x4 1866 CL9 | PSU: Seasonic Platinum 1000w Corsair RM 750w Gold (2021)|

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6 hours ago, SolarNova said:

Thats looks like interference tbh. i would initialy suspect the cable.

But why do I only get interference after I turn the monitor on? And the longer the monitor is off, bigger the interference... I didn't use to have this problem and I didn't add anything new close to the cables.
I'm lazy so I haven't tried with HDMI yet, but the cable seems perfectly fine, it's relatively new, came with the monitor.

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Good news I think, I've just changed to a HDMI cable and the lines are completely gone, working perfectly... So I guess the DisplayPort cable is to blame, or can it be the monitor's displayport port? The cable looks phisically fine.

Ryzen 5 2600X / ASRock Fatal1ty B450 Gaming K4 / G.Skill RIPJAWS V 16GB (2X8) 3000Mhz CL15 / Gigabyte RTX 2060 Super Gaming 8GB OC / Corsair RM650X 2018 / Crucial BX500 240GB / Seagate Barracauda 2TB 7200RPM Cooler Master MasterBox E500L /  ASUS TUF Gaming VG27WQ // Rog Orion / Corsair Harpoon RGB Pro / Cooler Master MasterKeys Lite L / Xbox One Red Sport  Special Edition Controller for Windows
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Well it's not the cable. This morning when I turn on the PC and the monitor I got the interference again for a minute.

I found that the lines/interference only happen at 75Hz and not at 60hz, what gives?

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I would test a different input device next then.

 

just to narrow down if its the monitor or the PC.

CPU: Intel i7 3930k w/OC & EK Supremacy EVO Block | Motherboard: Asus P9x79 Pro  | RAM: G.Skill 4x4 1866 CL9 | PSU: Seasonic Platinum 1000w Corsair RM 750w Gold (2021)|

VDU: Panasonic 42" Plasma | GPU: Gigabyte 1080ti Gaming OC & Barrow Block | Sound: Asus Xonar D2X - Z5500 -FiiO X3K DAP/DAC - ATH-M50S | Case: Phantek Enthoo Primo White |

Storage: Samsung 850 Pro 1TB SSD + WD Blue 1TB SSD | Cooling: XSPC D5 Photon 270 Res & Pump | 2x XSPC AX240 White Rads | NexXxos Monsta 80x240 Rad P/P | NF-A12x25 fans |

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3 hours ago, SolarNova said:

I would test a different input device next then.

 

just to narrow down if its the monitor or the PC.

I mentioned before, I've switched the GPU, happens with both GPUs. It's on the monitor side..

Ryzen 5 2600X / ASRock Fatal1ty B450 Gaming K4 / G.Skill RIPJAWS V 16GB (2X8) 3000Mhz CL15 / Gigabyte RTX 2060 Super Gaming 8GB OC / Corsair RM650X 2018 / Crucial BX500 240GB / Seagate Barracauda 2TB 7200RPM Cooler Master MasterBox E500L /  ASUS TUF Gaming VG27WQ // Rog Orion / Corsair Harpoon RGB Pro / Cooler Master MasterKeys Lite L / Xbox One Red Sport  Special Edition Controller for Windows
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  • 3 months later...

I was never able to fix the problem yet. I think it got worse with time.

I made this video that shows it better:

This now happens everytime I start the pc in the morning, lasts for 10 minutes, it only happens when at 75Hz, at 60hz it's fine.

Ryzen 5 2600X / ASRock Fatal1ty B450 Gaming K4 / G.Skill RIPJAWS V 16GB (2X8) 3000Mhz CL15 / Gigabyte RTX 2060 Super Gaming 8GB OC / Corsair RM650X 2018 / Crucial BX500 240GB / Seagate Barracauda 2TB 7200RPM Cooler Master MasterBox E500L /  ASUS TUF Gaming VG27WQ // Rog Orion / Corsair Harpoon RGB Pro / Cooler Master MasterKeys Lite L / Xbox One Red Sport  Special Edition Controller for Windows
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