Built new PC and got Zotac 3080 to go in it. I setup initially with my 2080 to test everything working before installed the 3080. I cannot set resolution to 4k in either w10 display or Nvidia control panel with 3080. It reverts to a 1024x768 resolution everytime I apply 4k setting 3840 x 2160. I am wondering itf it is cable issue. I am using about a 4 metre hdmi cable which I do not think is 2.1 hdmi cable. Anyone had same issue before I try new cable? I can set 4k if I disable HDMI Deep Colour on tv but then lost sound plus cannot use game optimizer in TV setting on the LG tv. Any ideas what my problem might be would appreciate as spent most day trying to get to work.
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Problem RTX3080 not able use 4k on my oled C14display resets to 1024x768
- Thread starter koh
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Cable, it can't handle the bandwidth. Get a certified HDMI 2.1 from Kenable if you are in the UK or their Amazon shop if you have Prime and it should be with you tomorrow.
(OCUK do not seem to sell HDMI 2.1 certified cables so I assume I can say where to get one)
Isn't there an EDID issue with certain 3080 cards, for which there is an update available?
I had problems with 4k @ 60+ Hz using copper Displayport cables at that distance.
Except he said it worked on the 2080.
I had problems with 4k @ 60+ Hz using copper Displayport cables at that distance.
Except he said it worked on the 2080.
Managed to find another cable lay around as not been using it as too short and all works fine. Need 5 metre one so ordered from your recommendation. Thanks for all the replies with suggestions.
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5m SHOULD be OK, but you might want an active cabke if it's a longer than standard distance. It's a little more expensive, but definitely worth it.
Bear in mind my use case is 20m, so 5m should be OK, but don't despair if not as there are options.
Sounds like he's using a hdmi1.4 cable which can't handle 4k bandwidth
In theory 3m is the maximum reliable distance for non fibre optic HDMI 2.1 cables, anything over 3m can and is likely to cause problems.
It doesn't mean every cable will have a problem or fail at the same length, it varies a lot based on cable manufacturing, other factors during shipping and handling etc - over 3m the interference become high and can cause issues.
I bought a few 5m HDMI 2.1 copper cables a year and a half ago to test with, only one of them worked at 4k 120hz 4:4:4 10 bit, all the others resulted in black screens and green artifacts on the screen.
And that one cable that did work, I had no confidence in - since I knew it would susceptible to inteference so at any point in the future it could fail as well
In theory 3m is the maximum reliable distance for non fibre optic HDMI 2.1 cables, anything over 3m can and is likely to cause problems.
It doesn't mean every cable will have a problem or fail at the same length, it varies a lot based on cable manufacturing, other factors during shipping and handling etc - over 3m the interference become high and can cause issues.
I bought a few 5m HDMI 2.1 copper cables a year and a half ago to test with, only one of them worked at 4k 120hz 4:4:4 10 bit, all the others resulted in black screens and green artifacts on the screen.
And that one cable that did work, I had no confidence in - since I knew it would susceptible to inteference so at any point in the future it could fail as well
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I didn't write this very well at all, I should have been clear that the 20m cable I use is an active cable, not a standard.
Thanks @Grim5
Your cable recommendation arrived today and all working fine at 5 metres. Price was very good at £15 and cable appears very good quality. Noticed a difference straight away especially so in Marvel Guardians of the Galaxy game. I hadn't been able to select the HDR option in game's launch screen options as it was greyed out. Now I am able to select HDR option the graphics in game have improved dramatically.