About my S24 Ultra adaptive refresh rate

[bonzocenter]

Hi, I've bought a S24 Ultra yesterday, and I'm loving it so far. However, while testing the Adaptive Refresh Rate option, I came across a behavior that I don't know if it's normal.

By enabling the developer options and selecting the option to show my current refresh rate I can see that it is working as intended for most of the time - it goes up to 120hz when I touch the screen, and down to about 24hz when the screen is idle. However, I've noticed that when the screen is in the 24hz refresh rate, it will occasionally go up to 120hz momentarily, then go back down again. This happens about two to three times in a minute.

I thought it could be because of my status bar icons and/or updating, but I've monitored it and that momentary "bump" still happens even if there's no activity on my screen.

I thought maybe the apps I was using was causing this issue, but no, this happens on the Settings apps as well. Also tested disabling multiple third party apps that I use (being Nova Launcher, KLWP and MacroDroid, but it still happens.

My previous phone had Adaptive Refresh rate as well, but only between 60 and 120hz (and it didn't work so well), so it's my first time experiencing this type of refresh rate that can drop bellow 60hz, so I don't know the differences between this type of screen, and a screen that can only alternate between two refresh rates. So maybe it's common for it to be jumping around, even with I user input. I really don't know.

I believe that the cause might lie in the status bar, because if I remove every single icon from the status bar using QuickStar, the refresh rate won't jump to 120hz randomly. Using the "Show view updates" option from Developer Options also corroborates this, as the only things being updated on the screen are the status bar icons. However, if that's the case, it's kind of frustrating, since there's no way (as far as I know) to control the update interval of the signal bars, plus it is jumping to 120hz even when the upload/download arrow indicators from the wifi icon light up.

I have attached a gif bellow showing an example of what's happening. It's a bit sped up, but you can clearly see what I'm talking about.

But what do you guys think? I don't know if this is an issue or if it is designed to work this way. And if it is an issue, how can I fix it?

Thanks in advance.

[kimberleigh]

Its the motion smoothness. Your battery would last longer if you switched it to 60hz. It will automatically switch to 120hz when needed.

[bonzocenter]

Thank you for your answer. I understand that this phone has motion smoothness options, but why does it switch to 120hz even when there's nothing happening on the screen? On the gif that I posted, that:s a black .PNG photo open on the Gallery app, there shouldn't be any activity on the screen.

However when I disable the Status Bar icons via QuickStar, it appears to work as intended by keeping the display at 24hz when it's not in use.

[kimberleigh]

That I don't know 😕

[bonzocenter]

I see. Thank you very much.

[usermzeJaY3BsM]

Because it is adaptive refresh rate, and your "test" is confusing it into first thinking it needs 120Hz, then realizing it is just drawing a number so lowers it, only to get caught in a continuous loop.

[L2S_SAM_Eng]

And yes, this is normal behavior. It has to update it's refresh rate. Causing it to momentarily bump the whole panel.

Second off, if you use developer options to force 120, it will never drop below 120.

[bonzocenter]

Thank you for your answer. My only doubt is: shouldn't the phone keep the refresh rate at 24hz when there's nothing moving or no one using the screen.

[ImRyan]

What option in the developer option do you need to do to force it to stay at 120 please? I don't mind if it uses more battery. I'm not concerned about that part. I know it makes it drain faster. Thanks in advance for your help

[bonzocenter]

I believe it's called Force Peak Refresh Rate, but I could be wrong.