Bad scrolling

A Former User

@boti99
yes same problem here. i already wrote an email to opera support, no response.

my Solution:
Uninstall Version 46 and newer (what you get right now from google playstore is v. 48.x) and go back to Version 45!
Where do you get official opera Final apks?
https://get.geo.opera.com/pub/opera/android/4500/

Than scrolling websites while your finger is on the screen is as -smooth- as only kinetic scrolling is right now in opera for android browsers...
... and like it is on the homescreen. 60 fps - i like
https://www.youtube.com/watch?v=XhvwJjhLdTo

alternative try Samsung internet browser.

technical info:
i think its a problem that is called Enable resampling scroll events

https://forums.opera.com/topic/29606/chrome-flag-and-opera-flags-no-enable-resampling-scroll-events-project-butter2

Opera for android, google chrome and Samsung internet browser are using chromium as engine...

Hope they will fix this annoying bug and bring back project butter on our surf-tablets and smartphones.

A Former User @Guest

@neetesha
its on every website!

BUT try simple sites like wikipedia or a google search.
no complex Dynamic loading pages!

leocg

leocg Moderator Volunteer @Guest

Scrolling on Google seems okay here.

A Former User @leocg

@leocg

no difference between kinetic-scrolling and normal scrolling style? hardly to believe.

by the way

I use a Samsung Tab A 2016 tablet (T580) with current Android 8.1 but Andorid 7 was the same.
https://www.notebookcheck.net/Samsung-Galaxy-Tab-A-10-1-2016-Tablet-Review.171710.0.html

Coud be possible that this bug only exist on certain android devices.
The stutter scrolling behaviour also exist on my Huawei honor 6x.
https://www.notebookcheck.net/Honor-6X-Smartphone-Review.207056.0.html
Thats why i still use older Opera for android apk´s on this device too.

Should really be investigate by software engineers.

one more thing 30 vs 60 fps
https://www.youtube.com/watch?v=ChsT-y7Yvkk

https://www.testufo.com/ (on of my fav tech sites)

leocg

leocg Moderator Volunteer @Guest

What's the difference between them? I just checked if scrolling was working fine.

A Former User

We confirm the issue and working on a fix for it
Thanks for raising the concern
Opera Support

A Former User @leocg

@leocg
I distinguish between 2 types of scrolling "styles".

normal scrolling = finger on screen and move (slow or fast) while finger stays(!) on screen (not good for long websites like wikipedia)
kinetic scrolling = finger on screen and push website so it automatically(!) scrolls fast as shown in the video without(!) finger on the screen.
does have the issue - especially when you move the finger fast.
-> scrolling behaves like 30 FPS

@neetesha

Thank you - btw i use the opera version 48 beta from playstore, too com.opera.browser.beta

Would you write a posting in this thread when you have a solution for the beta APK paketname so we can check if it is solved and boti99 and i can give you a feedback without losing settings in paketname com.opera.browser

That would be great

A Former User @Guest

@neetesha
as promised i will check and report if it is solved or not...

Did the Opera beta playstore update from 16.11.2018.
changelog description said

- Media player fixes
- Scrolling performance fixes

What i got on my Samsung Tab A 2016 (T580) tablet is.
48.1.2331.133223

Unfortunately scrolling still behaves 30 FPS like if scrolling style 1 is used.
kinetic scrolling still much smoother.

So Problem NOT solved with this particular beta release on Samsung's Exynos 7870 Octa SoC platform with ARM Mali-T830 MP2 GPU.

Further investigation by software engineers recommended.

A Former User

Status report

Did Opera beta Update to 49.0.2359.133590 via playstore

Problem on Samsung Tab A 2016 10.1" still not solved.

A Former User

@samstabauser We have checked the issue here and it is not reproducing locally. If possible could you please share a video to explain what exactly bothering you?

A Former User @Guest

@neetesha

Video is problematic because i dont have a camera that shot in 60 fps right now.
maybe i can do this if i got a camera.

So what did you confirm exactly 15 days ago?
and what did you change?

Cause i´m not a native english speaker how would you describe these different scrolling styles?
If you use kinetic scrolling, smooth scrolling is still there.

A Former User

@samstabauser We had an issue about scrolling in past which we fixed in 48.2.2331.133274. and since then we do not experience any issue with scrolling.

A Former User @Guest

@neetesha

so i finally got a 720p60 Videocamera that captured this problem...

https://youtu.be/XGjarsHZvjc

Im not happy with youtube compression but you still can see kinetic scrolling is way smoother while finger scrolling is juddering.

Hope this helps.

A Former User

so problem still exist.

This bad scrolling problem also exist on the Google Nexus successor Pixel2 XL.
https://productforums.google.com/forum/#!topic/chrome/Ev24GWfSEUE
He tried Opera browser v.49 on this Android 9 device that use a Qualcomm 835 highend SoC.

Thanks Andrey for your feedback.

From time to time i will report if this huge regression is solved or not.

Samsung updated it´s browser to Version 8.0.xxx and switched to chromium 63 engine.
https://play.google.com/store/apps/details?id=com.sec.android.app.sbrowser.beta&hl=de

Still smooth finger scrolling behaviour.

A Former User @Guest

@neetesha
The problem still exists in 49.2.2361.134358. I'm experiencing it on every web site. The kinetic acceleration(?) is too sensitive. If kinetic scrolling is like this, normal scrolling is much better.

A Former User @Guest

@starfruit135
Thank you! Still the same here on my Samsung T580 tablet.

Would you please write which Android device you exactly use?
https://forums.opera.com/topic/26794/instructions-on-posting-about-problems-in-opera-for-android/2

A Former User

@neetesha said in Bad scrolling:

@samstabauser We have checked the issue here and it is not reproducing locally. If possible could you please share a video to explain what exactly bothering you?

as it seems my video doesn´t realy help for easy understanding what i and 4 other opera fans are complaining here.

Here is a website that does show this stutter behaviour on moving text better. It is a techdemo website that REproduce complex problems in display technology faults.
https://www.testufo.com/framerates-text

btw scrolling user experience on current opera touch and opera mini versions right now offer are still fine but the GUI is not the same and not what i (we) need.

boti99

boti99

Still not good. I must use v47.3. In opera 47 is perfect and smooth. Please fix it.

boti99

boti99

The problem still exists.

A Former User @Guest

Galaxy S8 has it too. Both in Chrome and Opera. But not in a Webview based browser. I have an Exynos SOC and not a Quallacom unfortunately. Yes it's a Samsung thing. At XDA people noticed it too. Alone the Samsung browser working great is unfortunate.

At these devices Opera Mini does use Webview and yes Webview then it works very smooth.

At my Samsung Quallacom SOC Tablet it works fine, but not at Exynos SOC based phone or tablet.

Rumor has it people with Samsung Galaxy S10 with Exynos SOC have it too.

I prefer Opera, but on Exynos SOC of Samsung it's not Opera.

I am sorry. Since Opera and even Google cannot, without working together with Samsung about Exynos specific details on it, undo this.

If I buy another Samsung, I think I will select it not to have Samsung it's own SOC, the Exynos.

I don't believe Samsung doesn't know. But all Exynos users are probably affected.

Keywords: Samsung Galaxy Scrolling Stutter Chrome Opera

Note: This is not specific to all models, but only certain Samsung SOC, mainly Exynos.

I replied at your YouTube and I recognize it, since it is like as if Scrolling happening only at say 10 frames per second. I can really visually count the number of frames.

Kinetic Scrolling isn't really noticable though.

Sad story, ironically since Chrome has it too, and Chrome is also Webview in Android, questions are;

Why does an application not known as a browser but using just Chrome still works smooth?

Well, I would sit at the table with Samsung if I were Google. Since Google it's browser suffering too, only Samsung Browser or Opera Mini ( used Webview ) are working smooth.

And yes I factory reset, everything, it took months to understand.

It's Samsung doing something. At least at Exynos SOC. Not all Samsung devices have Exynos so Opera HQ team might find perfect smooth Scrolling at supposed same device, though it has same name it might have different SOC.

@samstabauser said in Bad scrolling:

@leocg

no difference between kinetic-scrolling and normal scrolling style? hardly to believe.

by the way

I use a Samsung Tab A 2016 tablet (T580) with current Android 8.1 but Andorid 7 was the same.
https://www.notebookcheck.net/Samsung-Galaxy-Tab-A-10-1-2016-Tablet-Review.171710.0.html

Coud be possible that this bug only exist on certain android devices.
The stutter scrolling behaviour also exist on my Huawei honor 6x.
https://www.notebookcheck.net/Honor-6X-Smartphone-Review.207056.0.html
Thats why i still use older Opera for android apk´s on this device too.

Should really be investigate by software engineers.

one more thing 30 vs 60 fps
https://www.youtube.com/watch?v=ChsT-y7Yvkk

https://www.testufo.com/ (on of my fav tech sites)