Random Color banding issue.

GotNoRice

[H]F Junkie
Joined
Jul 11, 2001
Messages
10,020
I have a recurring issue where I will start to notice obvious color banding on images in websites or images on my computer. It only does it on my center monitor (Samsung C32HG70 32" 1440P 144hz HDR monitor) and not either of my side monitors (HP ZR2740W 27" 1440P 60hz non-HDR monitors).

My temporary fix is to go into the Windows HD Color settings, select my main Samsung Display, and then toggle "Use HDR" On then Off. I always leave it off, I just use that toggle to fix this issue. I don't think that this issue is necessarily even related to HDR, I think that toggle simply resets the display driver, thereby fixing whatever is causing the problem. I don't even know if this is a Display issue, or a videocard / driver issue, or what. I'm assuming it's display related because it only happens on 1/3 of my monitors.

Interestingly, this doesn't seem to happen while gaming. It mainly happens while browsing the web.
 

Armenius

Fully [H]
Joined
Jan 28, 2014
Messages
23,697
Can you take a photo of the effect? If toggling HDR on and off fixes the issue, I am going to take a stab and say that it is the delineation between the edge lights that you are seeing, and the temporary fix is from your eyes readjusting to the change in brightness.
 

pendragon1

Fully [H]
Joined
Oct 7, 2000
Messages
25,315
try this combo and see if it "fixes" it like your method.
Reset Display Driver Shortcut Key: Ctrl + Windows + Shift + B
 

Starfalcon

Gawd
Joined
Jan 7, 2020
Messages
532
I used to have that same monitor, that is a known issue with them. Mine started like that, then over time it got worse and worse with distortion filling up the screen near the end for around 5 mins until it warmed up and went back to normal.
 

GotNoRice

[H]F Junkie
Joined
Jul 11, 2001
Messages
10,020
I used to have that same monitor, that is a known issue with them. Mine started like that, then over time it got worse and worse with distortion filling up the screen near the end for around 5 mins until it warmed up and went back to normal.

There has never been any correlation between the issue I'm having and the monitor "warming up". It happens at random and goes away when I toggle the HDR setting on and off (I almost always leave it off). The problem doesn't get better or worse on it's own, it stays the same until I "fix" it by toggling that HDR setting.

I forgot to try Ctrl + Windows + Shift + B

Can you take a photo of the effect?

Below is a picture I took of my monitor while the problem was occurring. The banding is particularly easy to notice on the paws.

Banding.jpg


Original image for comparison:

catavatar.jpg
 
Last edited:

GotNoRice

[H]F Junkie
Joined
Jul 11, 2001
Messages
10,020
I can confirm now that "Ctrl + Windows + Shift + B" does fix the issue when it occurs. That's much more convenient, thank you. I'm still very curious about why it's happening in the first place.
 

Starfalcon

Gawd
Joined
Jan 7, 2020
Messages
532
I assume it is a heat issue, as mine got very hot after using it for hours, plus it does have the PSU inside the monitor....something most of their other ones dont. I just figure the heat slowly cooked the chipset inside until it started having issues.
 
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