Usable Smartphones?

KM

The new OnePlus device, OnePlus Nord, has 367 Hz PWM when below 100% brigthness. It's really sad, shows they don't care about their own "DC dimming" ambitions anymore. Major step backwards.
(Found in https://www.notebookcheck.net/OnePlus-Nord-Smartphone-Review-Comeback-of-the-Value-Champion.483131.0.html)

Dominic

Wibin Did you need some time to adapt or you were always symptom-free with this phone?

Peter

reaganry I have switched the Pixel with my wife's Samsung A70 because i wanted the dual sim option. I got used to the Pixel from the start after i updated to Android 10. It is ok for me.

But Samsung A70 with Android 9 is even better. I use it all day long with no issues. It took some to get used to it at first but now it is absolutely fine.

Dominic

Peter Good news. I was wondering if I could get used to some modern phones if I use it for weeks on daily basis. How long did it take you to adapt to A70?

Peter

Dominic It took a couple of weeks. I started with low use and increased the time spend progressively. This worked for A70 just fine.
Note that i haven't upgraded to Android 10. Since Android 9 works ok for my eyes i am very hesitant to upgrade.

KM

Kray The same happened to me back then with my iPad 4 when I tried the iOS 8 beta. Did you ever try iOS 9 on your iPad 2, and did it become usable again?

KM

I jailbroke my iPad 4 now and with an app called "coolbooter" I could install iOS 10 in parallel to iOS 7 (dual boot) to see if it's usable. Seems similar to iOS 7. But now that I have found much better displays I truly notice how bad the iPad's screen is for me. It is "usable" but only at super low brightness or the headache kicks in quickly.

I think all 32-bit iDevices, including iPhones, can be jailbroken and downgraded at least in the form of a dual boot. Might need a lot of time to inform oneself, but maybe one of you has old 32-bit iDevices and wants to experiment.

Quad43

Dominic how was this for you?

Dominic

Quad43 Unfortunately it doesn't work for me, even with DC dimming turned on. It gives me all the symptoms I usually have with such devices like headache, strain, feeling warm, brain fog, eyes fatigue.
Right after having Xiaomi tested I bought Realme 6 Pro which "only" gives me a burning sensation, so I'm going to give it a try and use it for several weeks in order to get used to it.

Quad43

Dominic Same, returning it

Sunspark

Peter Yes, I have made up my mind I'm not going to bother with 10 at all. In part due to my puzzlement at the carriers here still offering only the February patch when in other parts of the world they've already rolled out the September patch. 10 was a buggy initial release and while it's supposed to be fine now, I'd rather not bother when 9's not draining the battery and is stable. The A70's actually a really good phone, despite being a level below flagship. Would have been one in previous years. I'm on the December patch. I will consider 11 when they roll that out, probably next year.

AGI

Sunspark

Peter

What do you guys think makes this phone "good"? No PWM? I wonder if you have any idea why you can tolerate it better than others. Thanks.

Sunspark

AGI We don't know, and this does have PWM but not one that bothers us in its current software configuration. I didn't get this device sight-unseen, I looked at it in the store several times and it definitely helps me that I can adjust both the font size and the zoom size.

Peter

AGI Initially this was my wife's phone, whenever i used it in the past even for a very short time i remember getting mild eye strain.
When I was somehow forced to use it due to the dual sim option, strangely i got used to it. So for me it was a just luck. For any other phone i tried the same process i got even more headaches and eye strain as time passed by.
I am really puzzled!!!

Dominic

I have a question to those who use iPhone 7+ or 8+. Did you have any symptoms at the beginning? I had a chance to test iPhone 8+ and it's indeed easy on my eyes, but I experienced some kind of strain on the back of head that disappeared in the very same moment I stopped looking at the screen.

Quad43

Dominic yes, i can't use iphone 8. it was better than X however still not usable for more than very short time periods 🙁 better with sunglasses

Lauda89

Has anyone tried ios 14?
I've tried to update my iPhone X yesterday from the 13.4.1 (100% fine and also every versions before it) to 14.0 but I don't feel it ok. I need to try it more but I am not optimistic.

Lauda89

Lauda89 I have to give up! It s not super bad, I mean it's usable for a short time but i don't like to feel this sensation. Now i have to try to downgrade but i can't go back to my old IOS 13.4.1 unfortunately, only 13.7.
Let's try and see what happen..
I am increasingly convinced that it is a software problem and not a hardware one 🙁
And i don't think that it's a nice thing because we probably never know which is the problem and now i am super anxious every times i need to install an update!

AGI

Peter I see. Yeah, it is really puzzling! Thank you.

krooto

Hi everyone!
I'm in the same boat (

Some observation:
Phone with LCD, no PWM at any level ( Redmi 3s ) with same android version 6.0.1:
Firmware at mid 2016 - OK
Firmware at 2017 and later - NOT OK
I run LCD test and can see that image for testing viewing angles looks slightly different under different ROM.

May be someone knows how to find difference at build.prop, video driver versions, config files, etc ?

I think that problem is sorta dithering, anti-aliasing, transparency, framebuffer settings.

I'm sure that any linux guy with video stack knowledge find it,

krooto

Lauda89 I am increasingly convinced that it is a software problem and not a hardware one 🙁

Definitely!

Look at my post above.
I have phone with root access and two firmware
One with issue.
We need to compare drivers, settings etc

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