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How come refresh rate switching is without a short stutter on my phone?

The phone in question is a Redmi Note 10 5G, and honestly, I have doubts that it actually switches from 90 to 60Hz.

Unlike a PC display, it does not stutter nor turn black for a moment, and it feels just as if the UI was simply limited to 60 fps rather than a display running at 60Hz. I'm only speaking from experience here.

Unless, of course, it is just an impression, and the reason why it doesn't stutter at all is because it only tunes down the display clocks and doesn't load a resolution profile.

All of this is very confusing. What do you people think?

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It doesn't black out because the SoC drives the display directly, there isn't a whole bunch of things in the chain that need to change modes/resynchronise to the new one like with HDMI etc. 

Variable refresh rate on monitors also doesn't cause blackouts.

F@H
Desktop: i7-5960X 4.4GHz, Noctua NH-D14, ASUS Rampage V, 32GB, RTX3080, 2TB SX8200Pro, 2x16TB Ironwolf RAID0, Corsair HX1200, Thermaltake Overseer RX1, Samsung 4K curved 49" TV, 23" secondary, Mountain Everest Max

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On 5/22/2022 at 7:41 AM, thekingofmonks said:

The phone in question is a Redmi Note 10 5G, and honestly, I have doubts that it actually switches from 90 to 60Hz.

Unlike a PC display, it does not stutter nor turn black for a moment, and it feels just as if the UI was simply limited to 60 fps rather than a display running at 60Hz. I'm only speaking from experience here.

Unless, of course, it is just an impression, and the reason why it doesn't stutter at all is because it only tunes down the display clocks and doesn't load a resolution profile.

All of this is very confusing. What do you people think?

I think the problem is more with your monitor than ur phone. Imagine if the screen turned black every time you stop scrolling

I’d bet you’re in the phones and tablets category (my domain haha)
The king of quack, That android guy…

samsung s10e | android enthusiast | Tech blogger

 

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9 hours ago, kamonanban said:

I think the problem is more with your monitor than ur phone. Imagine if the screen turned black every time you stop scrolling

I'm not sure what you're referring to. My laptop's display works fine, just like any other monitor.

Asus ROG G531GT: i7-9750H (PL2 107W), GTX 1650M (1024c, +150/+700MHz),  2x8GB 2666MHz (Samsung/TeamGroup), Micron 512GB M.2 NVMe, Barracuda 1TB 2.5" SSHD, 1920x1080@172Hz IPS, and tons of additional copper

 

Server/Alt: i5-4590@default clk, OEM aluminium cooler, Gigabyte B85M-D3H, MSI R9 280 Gaming, 2x4GB 1600MHz (Kingston Fury Red), Samsung 860 Evo 512GB 2.5", 160GB shared 2.5" HDD, AOC 210S D-sub (1680x1050@60Hz), Asus M32 Office PC case with decent airflow

 

iMac 21.5" (late 2011): i5-2400S, Radeon HD 6750M (MXM), 4x2GB 1333MHz (Samsung/Hynix), Seagate 500GB 3.5" (High Sierra), 1920x1080@60Hz LCD

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11 hours ago, thekingofmonks said:

I'm not sure what you're referring to. My laptop's display works fine, just like any other monitor.

You just said it goes black while switching refresh rates, it shouldn’t do that.

I’d bet you’re in the phones and tablets category (my domain haha)
The king of quack, That android guy…

samsung s10e | android enthusiast | Tech blogger

 

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55 minutes ago, kamonanban said:

You just said it goes black while switching refresh rates, it shouldn’t do that.

He was talking of changing resolution/video mode on a PC. 

F@H
Desktop: i7-5960X 4.4GHz, Noctua NH-D14, ASUS Rampage V, 32GB, RTX3080, 2TB SX8200Pro, 2x16TB Ironwolf RAID0, Corsair HX1200, Thermaltake Overseer RX1, Samsung 4K curved 49" TV, 23" secondary, Mountain Everest Max

Mobile SFF rig: i9-9900K, Noctua NH-L9i, Asrock Z390 Phantom ITX-AC, 32GB, GTX1070, 2x1TB SX8200Pro RAID0, 2x5TB 2.5" HDD RAID0, Athena 500W Flex (Noctua fan), Custom 4.7l 3D printed case

 

Asus Zenbook UM325UA, Ryzen 7 5700u, 16GB, 1TB, OLED

 

GPD Win 2

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5 minutes ago, Kilrah said:

He was talking of changing resolution/video mode on a PC. 

Oh i see. 

The difference is the desync between the gpu and display on a pc, vs on a phone

I’d bet you’re in the phones and tablets category (my domain haha)
The king of quack, That android guy…

samsung s10e | android enthusiast | Tech blogger

 

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