Related
NOTIFICATION BAR scrolling down without touching it: Static Electr & Capacitive Scrns
I would like to know if anyone else has experienced this at least once. I didn't post here as a thread til I got confirmation from one other DESIRE user that this has happened to him as well.
I don't know the exact triggers or even the exact scenarios, but this has happened several times to me already:
I am using the phone in horizontal mode and tapping menu items or inputting text, and my finger is nowhere even close to the Notification Bar at top of screen -- and yet suddenly the Notification Bar will auto-scroll down, interrupting what I was doing. Repeated times. It would happen again, with no accidental slippage of my finger or anything. My finger would be nowhere near the bar.
I am wondering if there is any kind of static electricity effect with capacitive screens that can set off a menu action.
So I am asking the experts here. Is that possible? Is it anything that was reported with the Nexus One?
RELATED (1): After this happened a few time in ONE SESSION using the phone -- it happened to be while uploading videos to YouTube, I wanted to test to see if I moved my finger close to the Notification Bar would this perhaps trigger this auto-scroll-down. So I moved my finger just slightly above the surface of the glass at the Notification Bar, and it didn't make it scroll down, but on this occasion, it set off a kind of jumpiness whereby the notification bar was rapidly shifting up and down a few pixels, as though it was receiving input. Has anyone seen this happen? I have not yet been able to get this to repeat from that session of using the phone a few days ago. I was lying down on my bed, and I'm pretty sure sheets produce a lot of static electricity, so this is my layman's question. Is there some causal effect here?
RELATED (2): A variation on this problem would be where I am actually trying to select a menu choice, and instead of my finger-press activating the menu item, instead the menu item jumps up slightly, and does not get selected.
This, again, happened when I was in ALBUM MODE, watched a video in horizontal display, then tapped-and-held the video to bring up the context menu that includes various SHARE options. One of those options is YouTube (the last item of the menu). I would try to select "YouTube" but the menu jumped upwards slightly, and wouldn't get selected.
I have been able to reproduce this one (Related 2) today, days later, in totally different environment .
So, a bunch of questions:
1. Is there such a thing as a static electricity effect that confuses the screen?
2. Are there other kinds of known screen-response problems that could be at play here?
3. Is this something that sounds like "it's defective so return it", or is this a somewhat common experience, sporadically?
the only time I've had that happen to me is when I use a cheap charger I've got and yeah the screen just skitses out. I am using a hero tho but this is the first time I've seen anyone else encounter this so I thought il'd churp in.
I had something similar only once.
The notification bar went mad. It was flicking up and down constantly without me touching the phone at all.
I had to pull the battery to fix the problem.
Hasn't happened since.
Fon22
Happened to me also when loading a ROM in Nesoid.
So I'm not sensing any concerns re; any defect... but still wondering, since I don't know the physics of capacitive screens... Is static electricity the culprit? Never happened once on my GSM HERO... so something is at play here.. or is it an intermittent defect that rarely shows up?
quicksite said:
So I'm not sensing any concerns re; any defect... but still wondering, since I don't know the physics of capacitive screens... Is static electricity the culprit? Never happened once on my GSM HERO... so something is at play here.. or is it an intermittent defect that rarely shows up?
Click to expand...
Click to collapse
The capacitive touch screens work by detecting a disturbance in the EM field on the glass surface. There's a few ways to do it, I think the way mobile phones are doing this is to put a field of their own over the glass and detect fingers on the surface based on what levels of the field they'd expect to see at different points around the screen, and doing some comparisons on what levels are actually detected.
Please someone correct me if I'm wrong BTW.
I've noticed this notification bar problem today and yesterday. Lucky I at least saw how I caused it. My finger was to close to the top right of the screen because of the way I was holding the handset. That combined with the lacklustre multi-touch support on this handset made the phone detect it as a finger swipe that rapidly moved downwards.
I've always had similar problems with capacitative and inductive touch technologies. I don't actually need to touch the desires screen to activate a touch. The worsted was the Zen Micro with the touch controls. I could activate that thing from about 10-15mm away. The touch on-off-dimming lamps too. I usually cycle those through all their light levels with a single touch. Where as my brother actually struggles to activate those, really has to press his hand down hard on them.
Brilliant, Alex... You got right inside my head and answered exactly what i was trying to ask.... the physics of the system.
I'm okay with little glitches here and there, and I am sure I will learn to avoid proximity issues that tend to trigger these mis-fires... just as I learned to adjust my tap-key behavior in typing on the on-screen keyboard on capacitive screen vs all the resistive screens I had used before on Windows Mobile, where fingernails could & would engage the resistive screen -- vs learning that the bottom surface of the finger has to make contact on the keys on capacitive screen... (sorry i am USA and we still resist the world's metric standard, so i don't know the equivalent distance in cm,)... but it's over a 1/4-inch of an upward shift in the position of one's fingers above the capacitive screen from the tip of the fingernail.
But once you train your senses to activate the keys sensors properly, the finger impact behaviors of resistive screens goes away after a while (at least for me)
(oh, btw, I ordered the new HTC capacitive stylus which is a couple of months old now, but is an official DESIRE accessory, so that will be an interesting experience... the thing i miss most about the resistive screen and stylus was being able to scribble notes really fast, way faster than i could ever type -- and draw pretty detailed images or maps and directuions for people. so it will be interesting to see the granularity of control the capacitive stylus will give)
So thanks very much for giving me the exact level of detail I can process as a lay person.. and for assuring me, as the rest of you have as well, that this apparently comes with the territory of this phone -- and therefore should not be seen as a defect. Because i sure as hell didn't want to go shipping this phone back. I can live with an occasional spazzoid misread of intended impact spot on screen...
And, fnally, this was funny -- re the different degree of touch we all consider "normal" --
The touch on-off-dimming lamps too. I usually cycle those through all their light levels with a single touch. Where as my brother actually struggles to activate those, really has to press his hand down hard on them.
Click to expand...
Click to collapse
thanks!
Alex_w said:
The capacitive touch screens work by detecting a disturbance in the EM field on the glass surface. There's a few ways to do it, I think the way mobile phones are doing this is to put a field of their own over the glass and detect fingers on the surface based on what levels of the field they'd expect to see at different points around the screen, and doing some comparisons on what levels are actually detected.
Please someone correct me if I'm wrong BTW.
I've noticed this notification bar problem today and yesterday. Lucky I at least saw how I caused it. My finger was to close to the top right of the screen because of the way I was holding the handset. That combined with the lacklustre multi-touch support on this handset made the phone detect it as a finger swipe that rapidly moved downwards.
I've always had similar problems with capacitative and inductive touch technologies. I don't actually need to touch the desires screen to activate a touch. The worsted was the Zen Micro with the touch controls. I could activate that thing from about 10-15mm away. The touch on-off-dimming lamps too. I usually cycle those through all their light levels with a single touch. Where as my brother actually struggles to activate those, really has to press his hand down hard on them.
Click to expand...
Click to collapse
I was thinking it is softwarerelated. The bar remains halfway the screen, is in the layer below the active app, and jumps to front upon touching the screen.
I have the Problem, too. And that since Monday. I went mad since yesterday evening so i tried to go back to stock, unroot and all.
But the problem is still there.
How can i fix it? Or is my Phone damaged?!
The Notification Bar scrolls down without touching the display and then freezes the phone. so i must lock the phone and relock it and then i can use the phone but after a short time the same problem came back!!
So I reckon you're an undertaker for a living?
Sent from my HTC Desire using Tapatalk 2
erklat said:
So I reckon you're an undertaker for a living?
Click to expand...
Click to collapse
Sorry but i don't understand what you mean
The problem makes me crazy because i have now the stock rom because i thougt it was an issue due a custom rom or a kernel or something.
If you can help me please do that, this problem robs me to sleep
But i havent the Desire. I Have the HTC EVO 3D GSM
19Marc89 said:
Sorry but i don't understand what you mean
Click to expand...
Click to collapse
lol digging up the dead
Sent from my HTC Desire
Sorry but I do not understand the background of your information which is in context with my problem of the notification bar.
@19Marc89 He meant that you responded to a an old (dead) post. Listen, I'm trying to recondition an old Motorola Milestone (Droid) with a crazy touchscreen problem, whose cause I believe I've narrowed down to static electricity - can you do me a favor and try stroking the glass side of the phone lengthwise in one direction down your sleeve, preferably if you have a wool sweater on? Call me crazy, but this works for me, at least temporarily. I posted more here:
http://forum.xda-developers.com/showthread.php?t=1041943&page=5
install gravitybox. go to >statusbar tweaks>disable peek. click it. problem solved!
quicksite said:
I would like to know if anyone else has experienced this at least once. I didn't post here as a thread til I got confirmation from one other DESIRE user that this has happened to him as well.
I don't know the exact triggers or even the exact scenarios, but this has happened several times to me already:
I am using the phone in horizontal mode and tapping menu items or inputting text, and my finger is nowhere even close to the Notification Bar at top of screen -- and yet suddenly the Notification Bar will auto-scroll down, interrupting what I was doing. Repeated times. It would happen again, with no accidental slippage of my finger or anything. My finger would be nowhere near the bar.
I am wondering if there is any kind of static electricity effect with capacitive screens that can set off a menu action.
So I am asking the experts here. Is that possible? Is it anything that was reported with the Nexus One?
RELATED (1): After this happened a few time in ONE SESSION using the phone -- it happened to be while uploading videos to YouTube, I wanted to test to see if I moved my finger close to the Notification Bar would this perhaps trigger this auto-scroll-down. So I moved my finger just slightly above the surface of the glass at the Notification Bar, and it didn't make it scroll down, but on this occasion, it set off a kind of jumpiness whereby the notification bar was rapidly shifting up and down a few pixels, as though it was receiving input. Has anyone seen this happen? I have not yet been able to get this to repeat from that session of using the phone a few days ago. I was lying down on my bed, and I'm pretty sure sheets produce a lot of static electricity, so this is my layman's question. Is there some causal effect here?
RELATED (2): A variation on this problem would be where I am actually trying to select a menu choice, and instead of my finger-press activating the menu item, instead the menu item jumps up slightly, and does not get selected.
This, again, happened when I was in ALBUM MODE, watched a video in horizontal display, then tapped-and-held the video to bring up the context menu that includes various SHARE options. One of those options is YouTube (the last item of the menu). I would try to select "YouTube" but the menu jumped upwards slightly, and wouldn't get selected.
I have been able to reproduce this one (Related 2) today, days later, in totally different environment .
So, a bunch of questions:
1. Is there such a thing as a static electricity effect that confuses the screen?
2. Are there other kinds of known screen-response problems that could be at play here?
3. Is this something that sounds like "it's defective so return it", or is this a somewhat common experience, sporadically?
Click to expand...
Click to collapse
REPLY :
install gravitybox. go to >statusbar tweaks>disable peek. click it. problem solved!
I know I am many years late but did you somehow manage to solve this problem?
My Acer A100 (love it to pieces) but my screen is a little too sensitive. On my A500, under Settings/Screen there is a option to change but I haven't found anything on my A100.
Any suggestion?
What do you mean it is too sensitive? I didn't know that was possible.
I find it too sensitive too. Always double typing letters with thumb keyboard and unintentionally clicking when trying to scroll. I didn't realize there was an option to adjust on my A500, but i haven't found a need for it on that tab. I've looked for apps that might help, but no luck.
I agree that the unintentional entry into threads while scrolling seems to be a reault of over sensitivity. Starts to become rather annoying after a while.
Sent from my A100 using xda premium
Glad to see I am not the only one. I suppose that does not offer a solution on how to make it tolerable.
guags99 said:
I find it too sensitive too. Always double typing letters with thumb keyboard and unintentionally clicking when trying to scroll. I didn't realize there was an option to adjust on my A500, but i haven't found a need for it on that tab. I've looked for apps that might help, but no luck.
Click to expand...
Click to collapse
One thousannd dtimes this. I could type on my trannsformmer with thumb keyboard like a champ. With tthis thing, I have to type soo painstakingly to avoid ddouble keypresses.
The above was not exaggerated for dramatic effect.
You can put a screen protector on it. That will reduce the sensitivity.
THAT. Is a good idea.
I have put a screen protector; also as suggested by Acer tech support, removed the sticker from the side. Still too sensitive for my liking.
I also find too sensitive and have a screen protector installed. I also find it hard to click on links. If there are two links close by I always click on the one that I did not intend to. Seems its a little off. Anyone have this problem?
Sent from my SCH-I510 using XDA App
I have had my a100 for 2 months now. I really like it but what I find irritating is the inconsistent screen response. Most of the time it is too sensitive that it toes a letter multiple times or the back button will go back more than one screen. Other times I have to hit a link or a button a couple of times before it responds. Sometimes I hit a link and a link adjacent to it will be launched. I also have problems with scrolling a it will launch a link instead of scrolling. I already have a screen protector but it did not improve things.
I was just about to start a new thread for this, but it seems like a common problem with the A100.
Scrolling through my dropbox is nearly IMPOSSIBLE, every time I try to scroll, it clicks a link.
Also, trying to long press a item can be difficult, because it will treat it like a click instead of a long press.
I was having the same problem too!
I found out that after disabling SwiftKey X tablet keyboard returned the Acer to a great state of sensitivity level.
This might be the same thing, but with another keyboard or something.
I was constantly pressing the wrong icons and doing unintentional actions while scrolling!!!
I hope this could help.
how did you disable it the swift keyboard?
Sent from my A100 using xda premium
jahciple,
You either uninstall it from My App in Market App. Or uncheck the keyboard from input methods.
I hope that works for you!
Please post your feedback and share it with us!
nm i thought you were referring to the stock keyboard.
Sent from my A100 using xda premium
I think the problem when scrolling and it accidentally selecting is because the touch screen loses connection with your finger and thinks you lifted it off and then touched it again. If you download multitouch vis and test touch sensitivity by running your finger from side to side that the colored dots will flicker or sometimes disappear as if you lifted yout finger off. So I think its not because its too sensitive but less sensitive. This happens more if you just lay the tablet down on a surface so only your finger is touching it. If you touch the bezel with your other hand it as you touch test with the other then it will respond better. This could possibly be grounding issue.
Sent from my PG86100 using XDA App
Definitely having this problem on mine. This is really the only issue I have with the device, and it's quite frustrating!
Same here. Sometimes when I'm scrolling on the home screen it either scrolls backwards or scroll two pages over (skipping one page). Anyone else have the issue? As for the other issues (clicking links while scrolling) I experience those too. I really love the device too. I was gonna get the Nook Tablet but I gott this for cheaper and it's just as good if not better.
Sent from my A100 using xda premium
i think we need to bring this up to acers attention. Im sure its just a matter of software update. When the original evo 4g came out it had touch screen issue where it wouldnt respond correctly unless your touching the device with your other hand. It was fixed via software update. Same thing happens with this device. Again download multitouch vis and you can test touch sesitivity while laying it on a surface while running one finger all across the screen you will see it flicker as if its not recognizing complete touch. But once you hold the device up with the other hand while touching the screen with the other then it doesnt flicker.
Hi Guys,
I think this has been already asked before but i did not a get a perfect solution for this, i brought a the Note 2 and i tried using the s Pen and found that when even not touching the screen in the apps/home screen if i scroll left and right it scrolled the page just like that, i did not even touch the screen for it and it worked to scroll the pages just like that with 2 cms away from the screen and the next day when i try to hover it, its not working like that, it asks me to touch the screen in order to scroll the pages or hover it to the corner of the screen to show the arrow mark where it scrolls (even here i don't have to touch it), i saw lots of videos , and everyone are trying to touch the screen and move it, and as everyone said , we need change that potentiometer and things, even i tried that and its not working. please clarify me, will i be able to swipe screens left and right without touching it, like before, or its a setting i have changed or i have a issue with S pen, i am totally confused, help me out guys.Thanks in Advance.:crying:
This is my first post here. I searched but didn't find anything like this. I posted on another site and nobody could help.
Ok so I just got my M8 yesterday and so far love it. However I have found a small issue that really bothers me. For some reason when on the lock screen gestures, if I swype left to go to home screen it always takes me to the screen just to the right of blinkfeed. I have changed my home screen and reset it so that my home screen is in the middle of two panels. (Blinkfeed is two to the rignt). However regardless each time I swype left on lock screen it takes me to the (what was the default) panel where the home screen used to be.
Anybody else experience this or know how to fix?
bump
I'm having problems with my Fold 4 not registering taps. I tap a space on the screen and nothing happens. I do it several more times, and finally it responds. I haven't seen a clear pattern yet, because it's somewhat intermittent. Has anyone else seen this problem?
I'm slightly suspicious of the Microsoft launcher here., but I suspect that's because it gets the majority of my taps, it being the launcher. I haven't had that problem in the past.
Just a minute ago I sat down to make a video of what I was seeing in case I thought an exchange might help. It happened on the first try, and I wound up having to press it five times with escalating pressure to finally get it to react. For the record, I have not seen a correspondence between pressure and the problem. I think I just naturally start pushing harder and when it works, it feels like it was more pressure. But when the problem isn't occurring, it takes very little pressure to register a tap.
Not using the Microsoft Launcher, but I am using SwiftKey, and I do have the same issue, especially with the space key. Mostly with the outside screen BTW.
Ah, I should have been more specific. Yes, I've only seen the problem on the outer screen so far. And I'm using gboard for my keyboard.
I've had a similar issue but it seems to have gotten better. Being intermittent makes it hard to pinpoint
I initially transferred apps and data from my Note 20 and was having issues on the outside and inside screen of taps not registering. Finally did a FDR and set up from scratch, haven't had the issue again. I always setup from scratch and took a shortcut this time, lesson learned!
ggrant3876 said:
I initially transferred apps and data from my Note 20 and was having issues on the outside and inside screen of taps not registering. Finally did a FDR and set up from scratch, haven't had the issue again. I always setup from scratch and took a shortcut this time, lesson learned!
Click to expand...
Click to collapse
I actually did an FDR last yesterday to try and solve the problem. Naada. It was still there for me.
I'm currently using Samsung's OneHome UI to see if it's something with the MS Launcher. Good god, I hate their launcher!
It feels like the sensitivity on the outer (cover) screen is too low, and combined with much smaller keys on keyboards (I use GBoard) there are plenty of missed hits and no response. Try turning on touch sensitivity and see if it improves ( Setting -> Display -> Touch Sensitivity. Mine went a tad better. I also changed the layout preferences to 'normal' keyboard height and most of my misses are now gone..
I'm having same issue but not with the keyboard but with tapping on apps on the home screen. I'm able to almost reproduce it every time in the middle of the screen. Is there any update on this issue?
I've got same issue that a tap on a app gets no action. Happens occasionally. Must be a bug.
After a factory reset mine has come back too. Hopefully we will get some bug fixes with the September security update.
imanony said:
I'm having same issue but not with the keyboard but with tapping on apps on the home screen. I'm able to almost reproduce it every time in the middle of the screen. Is there any update on this issue?
Click to expand...
Click to collapse
Same. I never have a problem in application, it's only when I'm interacting with the launcher.
I think the issue is with the refresh rate dropping. I used the galaxy max hz app and increased the base hz on the phone and I'm noticing response being much better now.
I also have this issue on my Fold 4's cover screen. I've always used the debug option to show where I touch, and when my touches don't register I still see the touch indicator, so I can only assume this is a software issue not deciding what to do with the touch. I think One UI might be overly sensitive for gestures, and detects taps as drags/swipes. A mini swipe on an app or folder on the home screen for instance won't do anything (which happens to me frequently).
I've had that problem quite a few times as well, not enough to drive me crazy but enough to be slightly annoying. It only happened when taping on the bottom of the screen. It often registered my taps as a swipe up. I saw the homescreen starting to go up slightly as if it was going to enter the drawer. Then one day I realized it was my way of tapping the screen that was the culprit. The way I hold my phone makes me ever so slightly swipe up as I tap the screen, but only when taping the bottom part, if I tap anywhere else, I don't tend to move my finger up as I tap. Of course, I'm talking minuscule amount of swiping here, probably less than a millimeter. It's just the way I hold the phone and move my thumb, it's personal, and I think everyone is going to have a different experience depending on how they hold their phone and tap the screen. Anyway, I'm not saying "you're using it wrong", because I think it's a problem samsung must fix, as I don't have that problem on any other phone. Probably too sensitive. I just tried to reproduce the problem as I write this message, and succeeded twice in less than 20 tries, so definitely the problem is still there. It's just that now I tap straight on instead of "sideways", and it works just fine. Just a workaround, I know...
Edit: on the cover screen, of course. Inside screen works fine with crooked taps.
Glad im not the only one. On the outer screen i have had times where I have to tap something 3 times for it to register... I never had this issue with my Z Fold 2