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Can a longer Display Port Cable cause studders/freezes when stressed?

BLSmith2112
By BLSmith2112
in Troubleshooting
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Posted

Hi all. I was wondering if a longer 15M Display Port cable can cause performance issues in games, notably studdering/freezing in both the active and background applications. 

 

My RTX 3090 gaming PC is in my Living Room. 

  • 1 Display Port is for Valve Index in the Living Room.
  • 1 Display Port is converted into HDMI with an adapter plugging into the television in the living room.
  • 1 Display Port is connected to my 2K 144hz monitor in my gaming room 10.7M away. 
  • 1 HDMI Port is connected to a 1080P monitor in my gaming room 10.7M away. 

As of yesterday I had two 6M + 6M Display Port cables connected together (with an adapter) for my 2K 144hz gaming monitor, and while playing the game "GTFO," with some buddies the screen would flicker with a thick white bar every 20-60 seconds, so I chalked it up to the adapter causing the problem and decided to pick up a single cable to solve the issue.

 

The new 15M Display Port Cable arrived today, it removed the thick white bar! We played GTFO again, while I was enjoying the 350FPS the 3090 provides, later on in the level the game would lock up/studder to 0FPS during intense firefights (discord would freeze, mouse would freeze), and even continued to micro-freeze (mouse/discord) after turning the game off. I checked the Display Port cable, it was so hot I couldn't touch it for more than a second. I restarted the PC, but none of the monitors would turn on. After waiting about 5 minutes and several forced restarts later, all the monitors turned on again.

 

I've found a shorter Display Port cable that I had ordered this morning (10.66M) that I'm hoping will perform better than the 15M cable since it's wasted cable effectively and I imagine (ignorantly) that the greater distance = more problems. 

 

Can the length of a Display Port cable can cause issues like I described? I really would love to avoid having to put the gaming PC back in my bedroom. 

Video Producer, Milwaukee Wisconsin.

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Posted

DP is known to often cause issues already beyond 2-3m, so not surprising. HDMI is a bit better as long as you stay at 60Hz but when you push to high bandwidths with high resolutions/frequencies you'll get issues too. 

 

For long runs you want to use optical cables.

F@H
Desktop: i9-13900K, ASUS Z790-E, 64GB DDR5-6000 CL36, RTX3080, 2TB MP600 Pro XT, 2TB SX8200Pro, 2x16TB Ironwolf RAID0, Corsair HX1200, Antec Vortex 360 AIO, Thermaltake Versa H25 TG, Samsung 4K curved 49" TV, 23" secondary, Mountain Everest Max

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GPD Win 2

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Posted

I wouldn't go for 15m long copper display port cable

You can get an optical one tho

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Audio Interface I/O LIST v2

 

 

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  • Author

The 15 Cable I bought is optical. I hyperlinked it in OP. Should that be fine?

Video Producer, Milwaukee Wisconsin.

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