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Hello guys,
i'm thinking about getting this phone soon, but I have one problem with it : is the screen dimmed with PWM ? It has almost everything I want, but I am really sensitive to flickering, that's why I can only use flicker-free phones, like the Asus Zenphone 2 that has an IPS screen with no PWM. I already searched everywhere, and I can't find any information about it, the only thing I've found is about the Zuk Z2 (non pro version) and it seems like the screen doesn't use PWM, but 5.0" is way too small for me
So if someone knows the answer, or could test it for me, it would be really nice of him/her.
Thanks a lot !
mipas13 said:
Hello guys,
i'm thinking about getting this phone soon, but I have one problem with it : is the screen dimmed with PWM ? It has almost everything I want, but I am really sensitive to flickering, that's why I can only use flicker-free phones, like the Asus Zenphone 2 that has an IPS screen with no PWM. I already searched everywhere, and I can't find any information about it, the only thing I've found is about the Zuk Z2 (non pro version) and it seems like the screen doesn't use PWM, but 5.0" is way too small for me
So if someone knows the answer, or could test it for me, it would be really nice of him/her.
Thanks a lot !
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Click to collapse
Hi,
my standard test for this is pointing another camera at the screen and check if the pictures flickers - managed to pick out my laptop screen correctly (there are two different versions of the Lenovo X1 Carbon display). I just did the same test to the Zuk Z2 Pro and did not see any flickering. What other test do you normally do to test if a screen uses PWM?
Cheers
rien
According to notebookcheck it flickers but I personally didn't notice that.
I've already got ridden of my device (the stock firmware is unusable and i don't trust the only official one) so I cannot do any tests with it.
Thanks for the fast replies Rien and birdie
rien-ne-va-plus said:
Hi,
my standard test for this is pointing another camera at the screen and check if the pictures flickers - managed to pick out my laptop screen correctly (there are two different versions of the Lenovo X1 Carbon display). I just did the same test to the Zuk Z2 Pro and did not see any flickering. What other test do you normally do to test if a screen uses PWM?
Cheers
rien
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Click to collapse
Did you change the brightness during the test ? Some phones seems to be flickering only when the brightness is low. Would be great if you could test it while changing the brightness from 100% to 0%
birdie said:
According to notebookcheck it flickers but I personally didn't notice that.
I've already got ridden of my device (the stock firmware is unusable and i don't trust the only official one) so I cannot do any tests with it.
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Can you give me the link ? I've only found a review about the non Pro version
mipas13 said:
Thanks for the fast replies Rien and birdie
Did you change the brightness during the test ? Some phones seems to be flickering only when the brightness is low. Would be great if you could test it while changing the brightness from 100% to 0%
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Yes I did, but indeed I'm not so sure any more. When I hold the camera close to the display there is hard to notice some flickering indicating PWM. I don't notice it myself, though with bare eye - but that doesn't mean anything for you.
As for the firmware - I specifically bought this device to be used with alternative firmware and I'm very happy so far.
Maybe if you record it you would see some flickering ? Because sometimes I can't see it just with the camera, I need to take a picture or a video to make it clear. But if there is still nothing , then it means the pwm is just too fast for us to see it, or there's just no pwm at all.
mipas13 said:
Maybe if you record it you would see some flickering ?
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Click to collapse
Good idea. I made a video for you, you can watch/download it here: http://www.xup.in/dl,64103604/2017-09-07_08-44-46.mp4/ I don't see any flickering.
Cheers
rien
Ahh thanks, so the screen doesn't flicker just like you said , or it's too fast to be seen so I should be okay with it anyways
I'll probably get it thanks a lot for the help !
If you don't see PWM effect with your eyes, it doesn't seem that it is safe for your eyes. Eyes see this flickering, but brains make this effect invisible. It damages your eyes so. Read about PWM more please. There is high flickering in z2pro, I've noticed. Did anyone try to fix it with Screen dimming programs?
I don't know if you guys saw the new Phone by Razer, but it's one of the first US launched phone with a 120hz screen. I personally tried a 100hz computer monitor and nothing beats the experience it gives (not even the resolution). Since this phone use the Snapdragon 835 like our phone. It is possible to mod the kernel, ROM and/or driver to put a higher refresh rate? At least 75hz or 90hz if our panel doesn't support 120hz ? Technical peoples, fell free to join the conversation to explain why it's/it's not possible !
it's a 60hz panel
^enuff said
Then i want QHD as well
Go take your average PC monitor and try doubling the refresh rate from 60-120Hz and then come back to us with the result.
Heck, most won't even let you go to 75Hz, let alone 120.
Sent from my ONEPLUS A5000 using Tapatalk
go buy a razer phone if you want a 120hz phone dude com on
..wait for the OP 5T+C, will launch 3 month after 5T, same specs, but 120 Hz, and 50$ more expensive...jjjjjjj
yungboss22 said:
I don't know if you guys saw the new Phone by Razer, but it's one of the first US launched phone with a 120hz screen. I personally tried a 100hz computer monitor and nothing beats the experience it gives (not even the resolution). Since this phone use the Snapdragon 835 like our phone. It is possible to mod the kernel, ROM and/or driver to put a higher refresh rate? At least 75hz or 90hz if our panel doesn't support 120hz ? Technical peoples, fell free to join the conversation to explain why it's/it's not possible !
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Click to collapse
On a monitor you can use custom resolution utility to overclock certain displays over hdmi, the max you'll get is 75Hz which does make a visual difference for gaming..
However on a phone ? I really don't know..
There's a relative chance that if it was possible it could maybe help with the jelly effect as it would allow more frames to come through.
Personally I don't think it's possible but I couldn't be 100% and if you damaged your screen then your phone is useless.
120Hz definitely not.
If the logistics of how CRU works on a computer can be translated to a mobile device then it could potentially be done at 75Hz although I'm not sure who would want to put their device up to test it
Not even possible on amoled
I want front speakers.... maybe the fingerprint reader can be modded to act as a speaker?
I think people have been really hard and sarcastic over genuinely question .. isn't this a forum to help people to understand or tweak their phone
dladz said:
On a monitor you can use custom resolution utility to overclock certain displays over hdmi, the max you'll get is 75Hz which does make a visual difference for gaming..
However on a phone ? I really don't know..
There's a relative chance that if it was possible it could maybe help with the jelly effect as it would allow more frames to come through.
Personally I don't think it's possible but I couldn't be 100% and if you damaged your screen then your phone is useless.
120Hz definitely not.
If the logistics of how CRU works on a computer can be translated to a mobile device then it could potentially be done at 75Hz although I'm not sure who would want to put their device up to test it
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I did this on my desktop monitor because of my CSGO addiction.
Is it possible for us to overclock the display? Mi9Se and K20 Pro have OС 90hz, are our displays worse and not able to OС.
OsTrichHoltt said:
Is it possible for us to overclock the display? Mi9Se and K20 Pro have OС 90hz, are our displays worse and not able to OС.
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The short Answer is No, your panel was not designed for a higher refresh rate.
The longer answer is also No.
But there are indeed threads within the Mi8 forums that provided a link to patch that was taken from the Mi9 forum, that file along with claims that the BTBO patch would raise your refresh rate. and make your phone faster. Search and you will find them along with myself and others warning them to not to use the patch. Hilariously, quite a few of those did not heed to our warnings and rudely told us that the patch would not break their phone and that they have it installed. The next day several people sent a PM asked for help fixing their phones when they stopped booting, I actually found a solution for a couple of these people.
TLDR : Don't use any BTBO refresh rate increase patches they will work for one day and then fail and brick your phone.
OsTrichHoltt said:
Is it possible for us to overclock the display? Mi9Se and K20 Pro have OС 90hz, are our displays worse and not able to OС.
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Click to collapse
Ehm, please never flash any over clock kernel. It destroys your screen. Many users reported on K20 Pro and Mi 9 a green display after a time.
Has anyone tried to get a higher refresh rate on the A71 as the Snapdragon 730 chipset inside is more than capable of doing so. Phones such as the Oppo Reno 2 and Redmi X2 with the 730 chipset have refresh rates higher than 60hz or is the A71 not at all capable. Thanks
Aaron Kunnath said:
Has anyone tried to get a higher refresh rate on the A71 as the Snapdragon 730 chipset inside is more than capable of doing so. Phones such as the Oppo Reno 2 and Redmi X2 with the 730 chipset have refresh rates higher than 60hz or is the A71 not at all capable. Thanks
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Yes, there's a Dev that is willing to bring higher refresh rates for Galaxy A71, he's called RenoxTV on XDA but you should PM him on Telegram, @mitko74112, spam his pm and ask him about 120hz for A71, he will help you as he did with my phone.
refresh rate, depends on hardware, not just processor, we need also a display capable of more than 60 hz...
LOLZES said:
Yes, there's a Dev that is willing to bring higher refresh rates for Galaxy A71, he's called RenoxTV on XDA but you should PM him on Telegram, @mitko74112, spam his pm and ask him about 120hz for A71, he will help you as he did with my phone.
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Thanks for the reply. Just before I ask him, did you have to root your phone cause mine is pretty new and don't want to root it just yet.
Dinepada said:
refresh rate, depends on hardware, not just processor, we need also a display capable of more than 60 hz...
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Ok thanks. It's quite disappointing though as the display would be perfect with a higher refresh rate
LOLZES said:
Yes, there's a Dev that is willing to bring higher refresh rates for Galaxy A71, he's called RenoxTV on XDA but you should PM him on Telegram, @mitko74112, spam his pm and ask him about 120hz for A71, he will help you as he did with my phone.
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Haha come on bruh ?
You basically mean, that you want to overclock your display, as the display itself is not meant to be running at higher refresh rates than 60.
Let's hope that somebody experienced makes something like an android display overclocker..
SkylinesHD said:
You basically mean, that you want to overclock your display, as the display itself is not meant to be running at higher refresh rates than 60.
Let's hope that somebody experienced makes something like an android display overclocker..
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Not happening lol
So from early videos of walkthroughs. It appears like there is no dc dimming included.
Does anyone that have the device mind commenting on the PWM flicker?
How is the flicker? Is there a DC dimming mode that is hidden in labs or developer options?
If not would you mind filming your screen in slow motion with another phone? Adjusting brightness to different levels 100% 75% 50% 25% and 0%?
And would you upload it here? That way I can judge the flicker level myself?
The Oppo Find X5 Pro which uses the same display (probably) was tested by notebookcheck at circa 370hz which is not too bad.
I was interested in this too.
I found this.
https://www.notebookcheck.net/PWM-Ranking-Notebooks-Smartphones-and-Tablets-with-PWM.163979.0.html?
Interestingly, the value listed on notebookcheck contradicts the value for the op8 pro one from DXO
Flicker, the display affliction - DXOMARK
All screens flicker to some degree, but what causes it on smartphones in particular, and how does DXOMARK test for it?
www.dxomark.com
So, I'm not sure what is accurate. As someone who is sensitive to pwm flicker, I can say that my present DD OP 8 pro is fantastic but I couldn't use the OP9 pro at all. Hard to say what OP10 pro will actually be like until you spend some time with it.
I picked up the OnePlus 10 Pro to try It for myself. Not a good experience initially.
How so? Care to elaborate?
bacon612 said:
As someone who is sensitive to pwm flicker
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It's a bit of an off-topic, but everyone is sensitive to pwm flicker, just some people's eyes hurt and others become irritable after a while or their concentration is impaired. If someone doesn't consciously feel flicker, it doesn't mean one's brain does not percept it and processes.