Hi Guys,
Recently reverted back to Android from iOS. I have had low end and mid range Android devices for development purposes as well as a Windows Phone devices all the way through.
Since taking up the HTC M8 as my day to day device, I have been noticing issues (teeth grindingly frustrating issues) regarding touch screen accuracy and responsiveness.
A prime example of this is when using a browser (Any browser, on both GPE and Sense editions). When making a pinch to zoom gestures, my fingers can move almost half an inch apart before the actual zoom process begins. I have tested this on a Samsung GS4 and found this not to be the case on that device. I believe the root cause of this problem is also behind the poor accuracy when typing on *any* keyboard (i find myself re-writing words again and again despite the larger screen size, you'd expect larger on screen keys would equal less frequent miss stokes...). Again this is not the case on the GS4.
I have used a multitouch testing tool to gauge some measure of response time and touch latency. I have found when moving points at any rate of velocity they begin to lag quite substantially behind my finger. I don't know if this is part of the same problem.
I am wondering if anyone could shed light on whether this is an issue with display touch sensitivity settings, something which could be changed at the kernel level or a limitation with the hardware itself,
Is it also possible that the same algorithm used to detect and handle touch for devices with smaller screen real estate is still being used and that the distances and tolerances for touch and gesture recognition are acting proportionally to the screen size.
Hopefully this is something we can fix, it makes the device tiresome to type with and feel clunky and unresponsive.
The screen on this phone has a higher touch response then the iPhone
Sent from my HTC One_M8 using Tapatalk
Go in a store and check out another phone. If yours turns out to be defective (which should be the case), you should get it replaced
Sent from my iPod touch using Tapatalk
No issues with mine.it's better than iPhone5s I had. Which had some issues sensing touch on corners of display
Sent from my HTC One_M8 using xda app-developers app
sabianadmin said:
Hi Guys,
Recently reverted back to Android from iOS. I have had low end and mid range Android devices for development purposes as well as a Windows Phone devices all the way through.
Since taking up the HTC M8 as my day to day device, I have been noticing issues (teeth grindingly frustrating issues) regarding touch screen accuracy and responsiveness.
A prime example of this is when using a browser (Any browser, on both GPE and Sense editions). When making a pinch to zoom gestures, my fingers can move almost half an inch apart before the actual zoom process begins. I have tested this on a Samsung GS4 and found this not to be the case on that device. I believe the root cause of this problem is also behind the poor accuracy when typing on *any* keyboard (i find myself re-writing words again and again despite the larger screen size, you'd expect larger on screen keys would equal less frequent miss stokes...). Again this is not the case on the GS4.
I have used a multitouch testing tool to gauge some measure of response time and touch latency. I have found when moving points at any rate of velocity they begin to lag quite substantially behind my finger. I don't know if this is part of the same problem.
I am wondering if anyone could shed light on whether this is an issue with display touch sensitivity settings, something which could be changed at the kernel level or a limitation with the hardware itself,
Is it also possible that the same algorithm used to detect to handle touch for devices with smaller screen real estate is still being used and that the distances and tolerances for touch and gesture recognition are acting proportionally to the screen size.
Hopefully this is something we can fix, it makes the device tiresome to type with and feel clunky and unresponsive.
Click to expand...
Click to collapse
If you have just moved from the iPhone, then this is a slight orientation problem ... and actually the M8 is the nearest you can get in terms of responsiveness to an iPhone, thanks to the fastest screen response time on the market ... for keyboard, you need to deliberately slow your finger speed down for few days and then you get used to it ... Screen/phone size also play a part in your typing because your mind can remember sub-consciously how much finger movement to do for typing ..
All the above is assuming you were an avid typist for long time on an iPhone
v-b-n said:
If you have just moved from the iPhone, then this is a slight orientation problem ... and actually the M8 is the nearest you can get in terms of responsiveness to an iPhone, thanks to the fastest screen response time on the market ... for keyboard, you need to deliberately slow your finger speed down for few days and then you get used to it ... Screen/phone size also play a part in your typing because your mind can remember sub-consciously how much finger movement to do for typing ..
All the above is assuming you were an avid typist for long time on an iPhone
Click to expand...
Click to collapse
Thanks for all the replies, it is likely that its a transitional issue alright. But before i write it off as such, can anyone verify the issues regarding pinch to zoom? Just trying to figure out if it is a faulty device i have on my hands or not
I get the exactly the same issues. I really thought it was me .
However I had the HTC One M7 and had no issue whatsoever.
LG G2 also same no issues .But since getting
HTC One M8, the touch accuracy is well absolutely useless. I am forever correcting what I type.
I don't think its the hardware but something to do with the Algorithm..No matter what keyboard you use or calibration you do. doesn't make any difference
I am hoping that lollipop cures this problem..
My touch accuracy has always been great. I'd say that if yours isn't it's a hardware problem.
Lostatsea23 said:
The screen on this phone has a higher touch response then the iPhone
Sent from my HTC One_M8 using Tapatalk
Click to expand...
Click to collapse
I tried the m8 and iphone 6 instore and compared them. The m8 screen is very sensitive, requiring minimal touch to be activated. This may be why tests are showing that the m8 has a faster touch response. However, when dragging your finger along the screen, such as swiping launcher screens, the iphone is more responsive.
I then tested "show touches" on the m8, the touch lags behind my finger.
I currently have a tablet z and I am wondering how does this compares to Tab S 8.4.
I am thinking about buying this one on account of the superb screen but seems that there are a great deal of lag happening, is it so?
Thanks in advance!
Sent from my SGP311 using Tapatalk
So, no opinions?
Sent from my SGP311 using Tapatalk
AllanJacques said:
I currently have a tablet z and I am wondering how does this compares to Tab S 8.4.
I am thinking about buying this one on account of the superb screen but seems that there are a great deal of lag happening, is it so?
Thanks in advance!
Sent from my SGP311 using Tapatalk
Click to expand...
Click to collapse
This is by no means the fastest tablet out there. Though I love the screen and my aosp ROM is working better everyday and has eliminated any lag issues I had.
AllanJacques said:
I currently have a tablet z and I am wondering how does this compares to Tab S 8.4.
I am thinking about buying this one on account of the superb screen but seems that there are a great deal of lag happening, is it so?
Thanks in advance!
Sent from my SGP311 using Tapatalk
Click to expand...
Click to collapse
I can't compare with the tablet Z, but I own a Tab S 8.4, a Nexus 7 2013 and a Note 8.0. I will try to answer your questions based on my experience:
The tab S 8.4's screen is a huge disappointment to me. It looks awesome in bright environments, the high pitch and vivid colors are pleasant to my eyes. However, for someone with high expectations as I did, it suffers from several issues that used affect previous AMOLED generations and totally ruin my experience:
- Smearing on black backgrounds. An issue that was already reported on Galaxy S4, and that seem to affect Tab S 8.4 as well: A dark red smear is visible when watching movies on black backgrounds. It looks like black pixels are slower at displaying a color than already lit pixels. The result is not obvious on first watch, but once noticed becomes a nightmare in dark movies.
Here is a fix for this issue: http://forum.xda-developers.com/showthread.php?t=2259775
While this seem to be pretty efficient fixing the smearing issue, the result is not perfect, it is rather annoying to use AND we lose the benefits of perfect blacks in the darkness. And it impacts battrery life, as a dark grey pixel is powered, while a black one is not.
- Mura effect. Basically, dark (but not black) colors are not homogenous on the screen. It is only really noticeable in the darkness, wich is my main usage for the tablet. Rather annoying, especially since the fix for the smearing issues induces replacing all "black" by "extremely dark grey", which reveal this issue.
More information on mura effect: http://forum.xda-developers.com/showthread.php?t=2108073
- Yellow/greyish tint. This one is'nt the worst, but can be felt on white backgrounds. This one becomes obvious when compared directly to a more natural white screen: the middle of the screen seems more yellowish and darker than the borders. It seems like the glass could be dirty, or tinted by years of heavy usage, which it is not.
None of these issues are obvious to someone who doesn't set his standards very high. They are for me though, and will probably be noticed by people willing to use the tablet in the darkness.
As a bottomline, I actually prefer the display offered by my Nexus 7 or iPad mini retina rather than the Tab S 8.4's. They lack the "wow" effect of vivid colors and the perfect blacks, but provide a more homogenous experience, especially in the darkness.
Now for the performances, I don't know what's wrong with this tab. I was thinking about putting the blame on TouchWiz, but alternative launchers don't help. Rooting and turning off as many services as possible didn't either. Here is what I noticed:
- System zoom effects are subjects to stuttering (opening new app/window, for example). None of my other android device suffers from similar issues, and zooming in other apps such as web browser works flawlessly. The issue is not reliable, and seems to reduce when the same window is opened and closed several times in a row. Memory access issue causing stuttering ?
- Overall system doesn't feel as smooth as it should. Even my elder Note 8.0 feels butter smooth compared to the Tab S 8.4, which I can hardly explain. It is fast enough, but the FPS seems to be lower.
- Two of my favourite apps suffer from low FPS when scrolling: Perfect Viewer and Moon+ Reader. The poor performances make the experience with these apps less enjoyable than on N7 or Note 8, which his hard to explain considering how much more powerful the Tab S 8.4 should be.
- 3D gaming is not at its best either. Performances are clearly below N7, and maybe even lower than on Note 8. There, I guess this is the cost for the extreme pixel density of the display panel.
If you are satisfied with the services offered by your Sony tablet, I'd suggest to stick with it. The Tab S 8.4 is a very decent tablet but not perfect, and its major strenghts are also its main weaknesses.
My 10.5 tablet doubtlessly has the best screen I've ever seen on any device. Sure, a k1 is faster CPU and GPU wise, but for my mainly media consumption and Web browsing it's amazing. Haven't experienced any of the issues mentioned above so I guess pentile does detract a bit.
Sent from my GT-N7000 using Tapatalk 5 alpha
ukael said:
I can't compare with the tablet Z, but I own a Tab S 8.4, a Nexus 7 2013 and a Note 8.0. I will try to answer your questions based on my experience:
The tab S 8.4's screen is a huge disappointment to me. It looks awesome in bright environments, the high pitch and vivid colors are pleasant to my eyes. However, for someone with high expectations as I did, it suffers from several issues that used affect previous AMOLED generations and totally ruin my experience:
- Smearing on black backgrounds. An issue that was already reported on Galaxy S4, and that seem to affect Tab S 8.4 as well: A dark red smear is visible when watching movies on black backgrounds. It looks like black pixels are slower at displaying a color than already lit pixels. The result is not obvious on first watch, but once noticed becomes a nightmare in dark movies.
Here is a fix for this issue: http://forum.xda-developers.com/showthread.php?t=2259775
While this seem to be pretty efficient fixing the smearing issue, the result is not perfect, it is rather annoying to use AND we lose the benefits of perfect blacks in the darkness. And it impacts battrery life, as a dark grey pixel is powered, while a black one is not.
- Mura effect. Basically, dark (but not black) colors are not homogenous on the screen. It is only really noticeable in the darkness, wich is my main usage for the tablet. Rather annoying, especially since the fix for the smearing issues induces replacing all "black" by "extremely dark grey", which reveal this issue.
More information on mura effect: http://forum.xda-developers.com/showthread.php?t=2108073
- Yellow/greyish tint. This one is'nt the worst, but can be felt on white backgrounds. This one becomes obvious when compared directly to a more natural white screen: the middle of the screen seems more yellowish and darker than the borders. It seems like the glass could be dirty, or tinted by years of heavy usage, which it is not.
None of these issues are obvious to someone who doesn't set his standards very high. They are for me though, and will probably be noticed by people willing to use the tablet in the darkness.
As a bottomline, I actually prefer the display offered by my Nexus 7 or iPad mini retina rather than the Tab S 8.4's. They lack the "wow" effect of vivid colors and the perfect blacks, but provide a more homogenous experience, especially in the darkness.
Now for the performances, I don't know what's wrong with this tab. I was thinking about putting the blame on TouchWiz, but alternative launchers don't help. Rooting and turning off as many services as possible didn't either. Here is what I noticed:
- System zoom effects are subjects to stuttering (opening new app/window, for example). None of my other android device suffers from similar issues, and zooming in other apps such as web browser works flawlessly. The issue is not reliable, and seems to reduce when the same window is opened and closed several times in a row. Memory access issue causing stuttering ?
- Overall system doesn't feel as smooth as it should. Even my elder Note 8.0 feels butter smooth compared to the Tab S 8.4, which I can hardly explain. It is fast enough, but the FPS seems to be lower.
- Two of my favourite apps suffer from low FPS when scrolling: Perfect Viewer and Moon+ Reader. The poor performances make the experience with these apps less enjoyable than on N7 or Note 8, which his hard to explain considering how much more powerful the Tab S 8.4 should be.
- 3D gaming is not at its best either. Performances are clearly below N7, and maybe even lower than on Note 8. There, I guess this is the cost for the extreme pixel density of the display panel.
If you are satisfied with the services offered by your Sony tablet, I'd suggest to stick with it. The Tab S 8.4 is a very decent tablet but not perfect, and its major strenghts are also its main weaknesses.
Click to expand...
Click to collapse
Your answer was perfect for my needs as my main utility for Tab S would be perfect viewer and moon reader as well.
Reading all sorts of experiences I'm beginning to wonder if I should buy a new tablet or not and it seems that I will rain check this purchase for now...
Sent from my SGP311 using Tapatalk
since in some country you can like send it back if you not satisfy kind of sale.. and if it apply to you why dont you test it. i dont have any problem like being mentioned above. and in this short period... i think the QC of the device are kind of loopy... some got great functionality without any problem and sadly some does.
Zamboney said:
My 10.5 tablet doubtlessly has the best screen I've ever seen on any device. Sure, a k1 is faster CPU and GPU wise, but for my mainly media consumption and Web browsing it's amazing. Haven't experienced any of the issues mentioned above so I guess pentile does detract a bit.
Sent from my GT-N7000 using Tapatalk 5 alpha
Click to expand...
Click to collapse
Regarding the screen, I couldn't find reports about the issues I mentioned above for the Tab S 10.5. It looks like the screen on the 10.5 is using a newer technology that would fixe these issues. I so wish it would be the same for 8.4 !
Not everybody is noticing these issues on 8.4, but then I believe it to be related to lower sensitivity to the issues. They are not obvious at all, and basically impossible to notice in lightened environments and/or watching colored images.
ukael said:
Regarding the screen, I couldn't find reports about the issues I mentioned above for the Tab S 10.5. It looks like the screen on the 10.5 is using a newer technology that would fixe these issues. I so wish it would be the same for 8.4 !
Not everybody is noticing these issues on 8.4, but then I believe it to be related to lower sensitivity to the issues. They are not obvious at all, and basically impossible to notice in lightened environments and/or watching colored images.
Click to expand...
Click to collapse
I'm not having any of the issues you highlighted with the screen. If you have already voided your warranty it would be interesting to see if you have the same issue with my asop build.
Not having any issue with my tab s 8.4 here... love this tablet.. i was a user of nexus 7 2nd gen..
Sent from my SM-T705 using Tapatalk
eousphoros said:
I'm not having any of the issues you highlighted with the screen. If you have already voided your warranty it would be interesting to see if you have the same issue with my asop build.
Click to expand...
Click to collapse
As a newb at flashing roms, I didn't go further than rooting at the moment.
Regarding the screen, while I am surprised that people report not noticing the issues at all, I am convinced many just don't notice them.
The smearing is actually more felt, guessed than seen. But once noticed, it becomes an annoyance.
The green/yellow tint is only visible on white backgrounds and when comparing to other screens or looking at it for a duration (reading e-books or internet webpages). It's far from being obvious on first sight.
The Mura effect however should become obvious to anyone looking for it. You can try with the follwing steps:
- Download and install screen adjuster.
- Get in the complete darkness
- Launch Screen adjuster, and set Red, Green and Blue to +5. Make sure it's switched on
- Look at a completely black background
=> The black background won't be black anymore but very dark grey. This is what Screen adjuster did by adding +5 in each color. If the screen is affected by mura effect, some areas will be lighter grey and others darker.
This is an issue that affects the 3 tab S 8.4 I tried (I exchanged it twice), as well as my Galaxy SII and my PS Vita. I just wish it wouldn't be the case, but I have yet to see an amoled display that isn't affected, and can hardly beleive I would be cursed badly enough to always get faulty units.
No issues on mine. The screen is superlative!
ukael said:
As a newb at flashing roms, I didn't go further than rooting at the moment.
Regarding the screen, while I am surprised that people report not noticing the issues at all, I am convinced many just don't notice them.
The smearing is actually more felt, guessed than seen. But once noticed, it becomes an annoyance.
The green/yellow tint is only visible on white backgrounds and when comparing to other screens or looking at it for a duration (reading e-books or internet webpages). It's far from being obvious on first sight.
The Mura effect however should become obvious to anyone looking for it. You can try with the follwing steps:
- Download and install screen adjuster.
- Get in the complete darkness
- Launch Screen adjuster, and set Red, Green and Blue to +5. Make sure it's switched on
- Look at a completely black background
=> The black background won't be black anymore but very dark grey. This is what Screen adjuster did by adding +5 in each color. If the screen is affected by mura effect, some areas will be lighter grey and others darker.
This is an issue that affects the 3 tab S 8.4 I tried (I exchanged it twice), as well as my Galaxy SII and my PS Vita. I just wish it wouldn't be the case, but I have yet to see an amoled display that isn't affected, and can hardly beleive I would be cursed badly enough to always get faulty units.
Click to expand...
Click to collapse
I've already tested mine T800 for mura with many shades of grey and no issues found.
Zamboney said:
I've already tested mine T800 for mura with many shades of grey and no issues found.
Click to expand...
Click to collapse
Yes, from my readings here and there, T800 screens whouldn't suffer from the same issues. They use a different technology though, I wish T700 would be using the same.
yes. me too.
"ukael" is right.
I had this problem on my both two Samsung Tab S 8.4 LTE T705.
on first I thought it is related to that one, but after purchased 2nd Tab S 8.4 T705, I noticed screen going yellowish.
specially in middle screen while in horizontal rotate specially reading something that has white background.
prssdghrzmhmd said:
yes. me too.
"ukael" is right.
I had this problem on my both two Samsung Tab S 8.4 LTE T705.
on first I thought it is related to that one, but after purchased 2nd Tab S 8.4 T705, I noticed screen going yellowish.
specially in middle screen while in horizontal rotate specially reading something that has white background.
Click to expand...
Click to collapse
Do you realize you replied to a thread from August 2014? LOL.
Sent from my SM-T800 using XDA-Developers mobile app
So i sold my Mi Mix 2 when this issue occur my question is do many of u have blurry text when scrolling?
Afaik that's because it's an IPS display which has the benefit of amazing color accuracy at the drawback of pixel response time.
It really bothered me when I first got the phone coming from an AMOLED phone, but after a few weeks I stopped noticing it. I have a really fast high-end TN panel for gaming on my PC, and looking at the colors between that and my phone are a really astounding difference.
I use my phone as a monitor for all photos and graphics I make for now (I'm not a professional so I don't need a specific high end monitor for this)
Yes the scrolling is blurring... With a little red ghosting too I notice (only I the dark I see that)
I understand it is an issue of the used lcd, but previously on my Xiaomi redmi note 4 I didn't had that issue so bad that I would notice also on my LG g6 it was not visible like on the Mi mix 2 even on a huawei p9 it was barely visible.
I noticed as well, but when I switched to the Oreo EU rom it was barely noticeable.
Has anyone checked out the Mi Mix 2s to see if this ghosting is fixed? This is really my favorite phone as it is bootloader unlocked and it has a fully functional AOSP build on it,but the ghosting and text blur still bothers me after weeks of use.
I have read according to benchmarks that the refresh rate is improved by around 10ms on the 2s, but I would like to confirm the issue is fixed before spending the money on one. Like I said, this phone is perfect to me aside from the ghosting.
jal3223 said:
Has anyone checked out the Mi Mix 2s to see if this ghosting is fixed? This is really my favorite phone as it is bootloader unlocked and it has a fully functional AOSP build on it,but the ghosting and text blur still bothers me after weeks of use.
I have read according to benchmarks that the refresh rate is improved by around 10ms on the 2s, but I would like to confirm the issue is fixed before spending the money on one. Like I said, this phone is perfect to me aside from the ghosting.
Click to expand...
Click to collapse
unfortunately my mix 2s has very noticeable ghosting.
zigbug said:
unfortunately my mix 2s has very noticeable ghosting.
Click to expand...
Click to collapse
Thanks for letting me know man. I hate to spend the money on getting a 2s if the issue is still present. I love everything else about the 2, so I may as well keep it if the issue remains. Thank you!
Is there a way to change this "ghosting" effect ? Even if it means more lags during scrolling ?
I come from an LG G3 whose screen was really better (good colors, no text ghosting..)
What I mean by that, is touchscreen reacting to a finger about 0.5-1mm before you press it, which causes all kinds of problems like keyboard misclicks.
My previous/current phone (Realme) also exhibits the same behavior, which was one of the reasons I wanted change it, but with POCO F3 it's actually a bit worse.
Is there any hope for Xiaomi fixing it in future patches (reading old posts it seems F1 had a similar problem fixed with updates) or could it be fixed with custom ROM/kernel/some build.prop tweak? My plan with F3 was to switch to custom ROM sooner than later anyway, because MIUI is honestly quite dreadful.
Or should I just return it and look elsewhere? But it seems these days overly sensitive touchscreen behavior is becoming a new normal sadly. I think Samsung had a dedicated "glove mode", while having sensitivity in a regular mode being... well, regular. Though I haven't tried any of their latest devices (i.e. S20 FE apparently has all kind of touch issues).
a way to compensate for this is to put on the phone a THICC protective glass. beacause using this tipe of protecion is becoming more and more common manifacturers are probably increasing the touchscreen sensitivity
GranoTurc00 said:
a way to compensate for this is to put on the phone a THICC protective glass. beacause using this tipe of protecion is becoming more and more common manifacturers are probably increasing the touchscreen sensitivity
Click to expand...
Click to collapse
Yeah, I tried that. It actually works throughout a stack of 5 (!) glasses on top of a stock plastic screen protector. So at least 1.5 mm. Probably even more, it definitely works throughout a thick stack of papers.
Don't see how that is acceptable.
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I've owned my S22 Ultra exynos for over 2 months and recently I decided to go back to my F62 and sell the S22.
Things I really like about the M62 / F62;
Side fingerprint sensor. The S22 Ultra has the in screen sensor, not only do I dislike the position of it on screen but when you add a screen protector you get many failed unlocks (this is after re-registering prints). I think the side mounted sensor feels a lot more organic to use.
Side fingerprint gestures. I really enjoy being able to swipe down on the side fingerprint sensor to open notifications.
Go to settings > adv features > motions and gestures > finger sensor gestures. It's a great feature that MIUI phones don't have.
Battery life. Pretty obvious this one. The best type of phone is the one that works because it has juice. Yesterday I had 8hrs45 screen on time and still had 24% battery remaining. The S22 would have been dead around 7hrs.
SD card and 3.5mm jack. Both of these are missing from the S22 Ultra
I mostly just use my phone for YouTube and web browsing. I also go cycling and use the phone as a dash camera or GPS maps.
I imported my F62 from India to the UK and I've been super happy with it.
Agreed. Samsung is nuts.
I could have gotten any of the Notes or the S renamed Notes Samsung must think its loyal power users and majority of flagship buyers are fools. Samsung destroyed their own niche market, brilliant. not.
Samsung gave me no choice for a new flagship phone that had the features I needed. All they had were trinkets and hype I didn't want or need to sell to me...
I choose another N10+ for the SD card slot, better form factor, better display color rendering index, less weigh, right handed spen, Android 10 not 11 or 12, good battery life 8-11 hrs SOT*.
A proven, reliable gorgeous work horse. This one in my hand will be 3 yo this September. It looks nearly identical to the new one, the display has no observable deterioration or detects with thousands of hours on it. The whole phone has held up extremely well, superb build quality. One replacement battery (going on 2) is the only repair. Current OS load is 2 yo and running well.
This phone is still fun to use and snappy fast.
*tradeoffs
Display, non variable refresh rate for better color rendering index and battery life
No 5G, been nice but not needed. 4G streams acceptably and generally uses less battery.
The low latency spen been nice but it nests on the wrong side.
Cams, again nice to have but the N10+ is a good shooter.
Expandable memory, not negotiable; the phone must support it.
Faster cpu and ram been nice but in real time use the speed increase is largely negligible and this gain is hamstrung by scoped storage on Android 11 and up. Android 9/10 aren't debilitated as scoped storage isn't fully active in 10.