Disabling HDCP on Nvidia GPU for less latency!

Everything about latency. This section is mainly user/consumer discussion. (Peer-reviewed scientific discussion should go in Laboratory section). Tips, mouse lag, display lag, game engine lag, network lag, whole input lag chain, VSYNC OFF vs VSYNC ON, and more! Input Lag Articles on Blur Busters.
thatoneguy
Posts: 216
Joined: 06 Aug 2015, 17:16

Disabling HDCP on Nvidia GPU for less latency!

Post by thatoneguy » 24 Dec 2021, 13:44

An interesting video from the developer of Big Blue Frontend
phpBB [video]

Bobo
Posts: 111
Joined: 05 Jun 2018, 11:44

Re: Disabling HDCP on Nvidia GPU for less latency!

Post by Bobo » 25 Dec 2021, 06:42

tested, i like what it does.

andrelip
Posts: 166
Joined: 21 Mar 2014, 17:50

Re: Disabling HDCP on Nvidia GPU for less latency!

Post by andrelip » 27 Dec 2021, 20:35

Tested. No difference for me.

FPSMaster
Posts: 189
Joined: 04 Jun 2021, 20:39

Re: Disabling HDCP on Nvidia GPU for less latency!

Post by FPSMaster » 28 Dec 2021, 12:03

I tried it out and I feel like there is an latency improvement. But it could be easily placebo... Would love to see proper testing with latency analyzer on that tweak.

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axaro1
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Re: Disabling HDCP on Nvidia GPU for less latency!

Post by axaro1 » 28 Dec 2021, 12:08

FPSMaster wrote:
28 Dec 2021, 12:03
I tried it out and I feel like there is an latency improvement. But it could be easily placebo... Would love to see proper testing with latency analyzer on that tweak.
I second this. I wish that there were members of our community with these kind of tools.

It would make this latency related subforum a lot more interesting and accurate.
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jorimt
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Re: Disabling HDCP on Nvidia GPU for less latency!

Post by jorimt » 28 Dec 2021, 12:28

axaro1 wrote:
28 Dec 2021, 12:08
I second this. I wish that there were members of our community with these kind of tools.

It would make this latency related subforum a lot more interesting and accurate.
The video's hyperbolic presentation aside, even if this were tested, there still would be those that would refuse to believe the results, and claim the methods used weren't thorough or accurate enough. I.E. "Click-to-photon is useless! You need to measure nano-seconds across a continuous 40 hours of use while tracking mouse movement and keyboard presses simultaneously..."

My guess if this tweak has any impact (and no, I'm not interested in testing it), seeing as it would probably be at the "display-level" (so to speak), it would likely impact latency in full frame or half-frame increments, which should be relatively easy to notice so long as subjective testing is isolated and repeated enough. Heck, a human benchmark before/after might do if it truly makes any notable difference.

That said, the placebo effect caused by simply knowing when a setting is or isn't enabled is also incredibly strong (even if the toggle in question actually does nothing), so who knows.
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deama
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Joined: 07 Aug 2019, 12:00

Re: Disabling HDCP on Nvidia GPU for less latency!

Post by deama » 28 Dec 2021, 21:34

I just tried it myself, can't really tell a difference.

JDoe
Posts: 36
Joined: 14 Feb 2021, 08:03

Re: Disabling HDCP on Nvidia GPU for less latency!

Post by JDoe » 03 Jan 2022, 08:31

deama wrote:
28 Dec 2021, 21:34
I just tried it myself, can't really tell a difference.
Because there is none.

FPSMaster
Posts: 189
Joined: 04 Jun 2021, 20:39

Re: Disabling HDCP on Nvidia GPU for less latency!

Post by FPSMaster » 04 Jan 2022, 07:33

JDoe wrote:
03 Jan 2022, 08:31
deama wrote:
28 Dec 2021, 21:34
I just tried it myself, can't really tell a difference.
Because there is none.
How do you know? Did you test it?

slaver01
Posts: 89
Joined: 21 Sep 2020, 01:48

Re: Disabling HDCP on Nvidia GPU for less latency!

Post by slaver01 » 05 Jan 2022, 05:10

I do this

Image

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