Recently I shared this post on Oneplus forum:
"Hi all, on my op 7t (hd1903) I notice a slight stutter when flick scrolling.
It happens both at 60hz/90hz light/dark theme (atm with OOS 10.0.6).
When I scroll I notice that some lines of words on display don't do a fluid transiction, but they "disappears-appears". You can notice that issue when you do a scroll with finger (and you don't keep the finger on display), or a slow scroll (just touch the display and scroll down) in settings app.
There isn't a delay of the speed of written transiction, but a really bad flow of written text on display, it's not fluid at all, a sort of "glitch".
It happens with settings, Chrome, instagram (harder to see with images) etc.. it s not an app related problem.
I don't know if it is an issue of 10.0.6, because I don't remember if it happened with the previous oos version (I got this phone about 1 week ago).
I did factory reset and a new installation 2 times but no success. I want to understand if the problem is software or hardware, thank you all"
How to reproduce:
-90hz or 60hz
-Light theme (also with dark but it's easier too see on light)
-Animation 0.5 or 1 (it's the same)
-Open settings and do little slow
scroll with the finger (don't leave the finger on display)
-Look at the texts written at the same time (center area): they don't do e fluid transiction up or down, they don't flow on the screen, but they "appear-disappear" in a fraction of second, like if they jump some pixels.
LINK (it's better to download for quality and watch it on bigger screen):
https://gofile.io/?c=dGaFtF
After I noticed this problem, I decided to go to a shop and I did some tests with the following six devices (eu versions) on both 60hz and 90hz and light theme (easier to see than dark mode) on settings app:
- Oneplus 7T frosted silver OOS 10.0.6: glitchy transictions of written lines is PRESENT
- Oneplus 7T frosted silver OOS 10.0.1: glitchy transictions of written lines is PRESENT
- Oneplus 7T glacier blu OOS 10.0.1: glitchy transictions of written lines is PRESENT
- Oneplus 7T PRO OOS 10: glitchy transictions of written lines is PRESENT (but harder to see because of a strange acceleration on scrolling)
- Oneplus 7 PRO OOS 9 and Oneplus 6T with OOS 9: this issue is NOT PRESENT
At this point in my opinion this issue is present on all 7T (and probably 7TPro).
Now, 7TPro and 7 Pro should have the same display, but I tested them with different oos versions (9 on 7Pro and 10 7TPro).
So I think that this is a software issue with Android 10, and I hope in a fast fix for this situation.
It's not possible to have "smooth" as a claim with a stuttering scrolling. Clear system cache, factory reset, block 90hz etc.. are all useless solutions (I tried).
I opened a bug report on feedback section, because 90hz or 60hz are useless in these conditions.
Sorry for english but it was difficult to explain in a written format this issue.
So, what do you think ? Let me know if you did a test or if you see this issue, thanks!
