Radeon Software: "10-bit Pixel Format" setting

[SpaceGhostC2C]

I was wondering if anyone here with an AMD GPU stumbled upon this setting and knows what it does:

Spoiler

 

 In my system, what it does is turning my screen black, forever. Only a safe-mode boot (conveniently made inconvenient by Windows 10... ), driver cleanup and reinstall gives me any image back on the display.

Notice that this is different from the 10bpc setting in the "Display" section, which is currently enabled:

Spoiler

I don't understand why there is a separate 10-bit setting in the "Graphics" section, or why enabling it crashed the driver so badly and persistently, while any color depth setting works just fine.

 

(also, HBCC auto-disables itself after enabling it, but not worth a thread as HBCC seems pretty useless anyway).

[Guest]

So is it the monitor doesnt support 10 bit? Heh. Now that you mention it, I dont think mine does either.

[Guest]

I just enabled it, didn't seem to change a whole lot.

Not sure why your having issues unless your monitor is having some sort of fit with it. Either way I don't think your missing out on much as far as I can tell.

[Dr0y]

Can cable be limiting that 10 bit, not being able to support it and cause some issues ?

[SpaceGhostC2C]

13 hours ago, ShrimpBrime said:

So is it the monitor doesnt support 10 bit? 

It does, though, and as you can see in the second screenshot, it is already enabled in the "Display" section of the driver.

 

55 minutes ago, Dr0y said:

Can cable be limiting that 10 bit, not being able to support it and cause some issues ?

I guess it's always possible, although it shouldn't, all parts (monitor, cable, GPU) are supposed to be displayport 1.4. My Display settings right now are 4K resolution, 10bpc color depth, 60Hz, RGB(4:4:4) pixel format, Freesync enabled, and it works just fine.

But I wonder what the "10-bit pixel format" in the "Graphics" tab is, how is it different from the color depth=10-bit setting (since one is enabled while the other is disabled) or the RGB(4:4:4) pixel format... ...and also why trying it out turns my screen black forever until a driver uninstall  

 

I haven't tried disconnecting and reconnecting the DP cable when that happens, though  But since the problem survives a reboot (or multiple reboots), I don't think it's a "re-detecting" problem (I had GPU/Monitor combinations in the past that would require physically unplugging and re-plugging DP 1.2 cables in the past).

 

12 hours ago, Nayr438 said:

I just enabled it, didn't seem to change a whole lot.

Not sure why your having issues unless your monitor is having some sort of fit with it. Either way I don't think your missing out on much as far as I can tell.

Thanks for the information!

[Guest]

That screen shot doesnt give the part number of your monitor.

The HDR10 I believe supports 10bit. 

Thats as far as any research has taken me with your monitor.