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How to set 10-bit color Depth?

Nvidia Control Panel is showing my new 8-bit + FRC (advertised as 10 bit) monitor as 8-bit. Supposedly, there was a way to change this. And supposedly software would recognize the FRC interpolation and see the display as 10-bit. Plus, with the HDR the monitor has, it would only make sense. What the hell can I do to change it?

You can set it in the resolution section of the nvidia control panel, but you will only be able to set it higher if you have enough bandwidth. So for argument sake if it’s hdmi 2.0 you can do 4k 60hz with 8 but or 4k 30hz with 10 bit.

So if it doesn’t give you the option to set 10 bit then try a lower resolution to check that it’s not just a bandwidth limitation.

Using a DP cable on my 4GB 960. Maybe it’s the GPU? :thinking: Hmm…

If the DP version of both the gpu and display is high enough to support the resolution then it’ll be the cable. But it may be the gpu as its old enough that it might be using an older DP version

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So, I’m using a 1080ti in my setup, and just got a new monitor for Christmas from the wife.

The monitor is 165hz (DP 1.4) and 144hz (HDMI 2.0) and capable of 10 bit color on a 1440 display curved panel. I’m using a DP cable that meets DP 1.4 standards (rated for 8k 60hz).

Hardware;
GTX 1080ti - GPU
DP 1.4, 6’- cable
Dell D3220DGF - monitor

When I first setup my monitor I could see 10bit color as an option in Nvidia’s control pane. However, after making some adjustments, I no longer had 10bit as a option, and it was defaulting to 8bit.

I have read from one user stating “max refresh rate supported on DP standard is 120hz for 10 bit.” I read elsewhere that it’s a “custom resolution issue that causes the loss of support for 10 bit color in Nvidia’s control panel.” The later doesn’t seem to make sense as I’m using the preferred resolution (2560x1440).

Is there any truth to one of the above answers that my be causing my issue?

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Make sure the monitor has DP1.4 turned on. If you set an overclock mode for high FPS, turn that off. Try lower refresh rates. I had to go down to 98 Hz on my display, for example.

Yep. That did it. Went into Advanced Display Properties, Monitor, switched refresh rate. Now on 10-bit colour depth. YEAH BABY!

And on a serious side note. I’m really sketched out by the issue I had with my new monitor… I switched from my DP to HDMI and the problem went away… Then I decided to use DP again, but from another port on my GPU. And the problem is gone. Played a bunch of games… no issues. I actually posted to BenQ’s support reddit and they insist on contacting them anyway… :thinking:

It was something on the monitors settings that it didn’t like. I’m now running DP1.4 at 165hz and 10 bit color. I’m happy as all get out now! I never knew picture quality could look so good. I could watch HDR video’s for days on this thing!

Do you have an older Nvidia GPU? If so you are probably having the same problem I had.

Nvidia has seen fit to DISABLE 10 bit output on older graphics cards in their new driver releases. I ran into this problem on my GTX 670. I contacted Nvidia support and complained about features being pulled and their response was we don’t and never have supported 10bit on the GTX 670. I told them it had worked for 2 years with no problems and they gave the same response. I rolled back the driver even though supposedly the old drivers has security verneraluilitys. I will buy an AMD GPU. I will resist purchasing any thing from Nvidia for a good while. I dont like having features pulled 10 years down the road in an attempt to force an upgrade. Once you go 10 bit you cant go back…

So the solution for you might be to roll back yoyr drover. I will edit this post with the working 10 bit driver version when I am back home.

GTX 670
4k 10 bit HDR monitor
Cable recommendations

Club 3D Displayport Cable 1.4 8K 60Hz VESA certfied 3 Meter/9.84Feet 28AWG Black Color CAC-1060 https://www.amazon.com/dp/B07F85RQD2/ref=cm_sw_r_cp_apa_i_PjhpEbB30HFNH

Club3D CAC-1373 High Speed HDMI Cable 8K 60Hz Up to 10K 120Hz with DSC 1.2, 3 Meter/9,84 Feet Black, Male-Male https://www.amazon.com/dp/B07VK7JWH5/ref=cm_sw_r_cp_apa_i_AkhpEb2XNMQ7X

@OrbitaLinx, OP’s problem was solved back in December.

Yep. That did it. Went into Advanced Display Properties, Monitor, switched refresh rate. Now on 10-bit colour depth. YEAH BABY!

Oh thanks for letting me know. I think ill create a thread for my post just in case any one else has the same problem I have. Can we get this thread closed?

Up to @Prenihility

Makes sense. I had problem like this for a while but a Windows update or Nvidia driver update or both fixed it. It also created an issue in games that would cause tearing and hide my displays proper resolution and refresh rate… This issue was compounded for me because the refresh rate kept resetting to bad settings between games and reboots…

Err. Sorry about the late replies, folks. Haven’t signed into the forums in a while. Yeah, all is well. New monitor is sweet. 10 bit colour working great. And RTings finally released their fellatio-contest review on my monitor. And I had to see it. Needless to say it was pretty pathetic. Really brings OPINIONS to my attention and even though you might logically think sources like that simply use metrics to measure performance of a device, a lot of it is sadly opinionated. Scores lower than a VG27AQ but the VG27AQ just on paper alone is the inferior monitor. Idk. shrugs.

Anyway, the 10 bit colour issue is resolved.