Database Develop

Screen issues

Screen looks great. But I'm having two issues.
First, the screen feels kinda rough dragging my finger across. By comparison my Galaxy S phone and iPad are very smooth and glide with no resistance.
Is this normal, can it be improved?
Second, the screen seems unresponsive at times. I'll have to tap more than one to get it to recognize an action. Maybe it's just being slow.
Also the calibration seems to be a bit off. I often seem to be clicking items below what I tapped on. Not sure it's completely user error since I don't seem to be having this much trouble with my 4 inch Android phone.
PS. The phone is rooted with AutoNooter and using LauncherPro and Dolphin browser.

Ravynmagi said:
Screen looks great. But I'm having two issues.
First, the screen feels kinda rough dragging my finger across. By comparison my Galaxy S phone and iPad are very smooth and glide with no resistance.
Is this normal, can it be improved?
Second, the screen seems unresponsive at times. I'll have to tap more than one to get it to recognize an action. Maybe it's just being slow.
Also the calibration seems to be a bit off. I often seem to be clicking items below what I tapped on. Not sure it's completely user error since I don't seem to be having this much trouble with my 4 inch Android phone.
PS. The phone is rooted with AutoNooter and using LauncherPro and Dolphin browser.
Click to expand...
Click to collapse
My screen is very smooth, and a little bit tacky... I'd prefer a less tacky, smoother feel, but it's okay.
Unresponsive I've not noticed really, but the calibration on the edges and/or corners is funky.. Like hitting the Search button in the market is hit and miss, otherwise other places I personally haven't seen any issues.

There's a thread on here / directions on nookdevs for how to recalibrate the screen. A lot of people have been reporting issues with the calibration on the edge of the screen. It doesn't bother me too much, so I haven't tried, but results are apparently quite good.
http://www.nookdevs.com/Recalibrate_the_NookColor_touch_screen

I've recalibrated the screen a few times. Even did the suggestion with placing the Nook face down for extreme sensitivity.
I still seem to be having the same problem where the touch is very unresponsive. It's most noticable browsing the web, I'll have to tap links multiple times before the browser does anything.
I'm wondering if I have a bad Nook or is this just how it is?

It could be the default browser. I had problems with unresponsive tapping as well but after switching to Dolphin Browser HD I havent really noticed them at all. However, it does seems like only certain apps or portions of them have problems with touch response...I can think of 2 off the top of my head..
1) The search icon in the Android Market. I have to really tap it hard or multiple times for it to open the search ability. Everything else in the market is a light, smooth, responsive tap, except the search ability.
2) ADW's settings menu, specifically the back button. Have to really hit it hard to work yet everything else works perfectly fine.
Maybe it's just me but I swear its only certain things which respond poorly to taps.
In regards to the screen being tacky, goto B&N and buy the Anti-Glare protective screen film. Make sure its the anti-glare one and not the regular screen protector. Not only will your fingers slide perfectly, but it also avoids all the annoying fingerprints the default glass seems to collect. Worth every penny. (You get 2 of them for 15 bucks)

I find that I have better luck ith a light touch & avoid a "tap". It took a bit of practice to know what part of my finger was actually making contact with the screen first & the reason for the perception that the screen was out of calibration.
I do have a problem with the center right area of the screen when playing crossword. Sometimes it is very hard to click on the rufgt side boxes. Interestingly, the same area of the screen is responsive in other apps.
Cheers,
kev
heers,
kev

I purchased the matte screen protector from them and it alleviated the tacky feel of the screen. Also resist oils and smudges so its a must have in my opinion.

Ravynmagi said:
I've recalibrated the screen a few times. Even did the suggestion with placing the Nook face down for extreme sensitivity.
I still seem to be having the same problem where the touch is very unresponsive. It's most noticable browsing the web, I'll have to tap links multiple times before the browser does anything.
I'm wondering if I have a bad Nook or is this just how it is?
Click to expand...
Click to collapse
I have the same problem at the very top edges of the screen. Pressing search in marketplace or a new tab in dolphin is really annoying. Requires many taps to work. Rest of screen seems to work fine. I did notice that the 2.2 Froyo was way worse for screen sensitivity. Maybe they can fix somehow with a firmware patch or something.

I have the same problem. Will try recalibrating later.

Tapiozona said:
It could be the default browser. I had problems with unresponsive tapping as well but after switching to Dolphin Browser HD I havent really noticed them at all. However, it does seems like only certain apps or portions of them have problems with touch response...I can think of 2 off the top of my head..
1) The search icon in the Android Market. I have to really tap it hard or multiple times for it to open the search ability. Everything else in the market is a light, smooth, responsive tap, except the search ability.
2) ADW's settings menu, specifically the back button. Have to really hit it hard to work yet everything else works perfectly fine.
Maybe it's just me but I swear its only certain things which respond poorly to taps.
In regards to the screen being tacky, goto B&N and buy the Anti-Glare protective screen film. Make sure its the anti-glare one and not the regular screen protector. Not only will your fingers slide perfectly, but it also avoids all the annoying fingerprints the default glass seems to collect. Worth every penny. (You get 2 of them for 15 bucks)
Click to expand...
Click to collapse
I don't think the market search button issue is a screen calibration issue. I initially thought there was an issue with the sensitivity/calibration in the top corner of the screen, but I have the same problem with market search when I am in portrait or landscape. Touching items in the same area of the screen in other apps is fine.

My screen is definitely more responsive after doing the commands.
I made sure to clean it completely with a microfiber cloth before running the commands.
As for the market search issue, it seems to have improved the sensitivity. In fact, to me it now feels as if I am getting the button push through, but it just takes time for the app to register it and take action (lag) and thus we think the button push did not go through and push it again...
my 2¢

A lot of the discussion on this thread is for locale based calibration, but I had the issue where if you hold still on a drag and drop, before dropping the thing you are holding is jittery, as thugh your finger was being jittery. This calibration fixed that problem.
Under the thought that this might happen again, would be nice if there was a way to run the command locally on the system without having to connect to adb to recalibrate.
Any ideas on how that could be done? I was thinking maybe scripted terminal commands?

[Q] My screen taps/touches/clicks itself

as the title says i was reading when the menu started showing and hiding again and again i tought was some book issues but when i got to the homescreen it began to run apps i had on it, i have no idea of the cause of this problem

I've had this same problem. I believe it's just the software and not a deficient screen. If you look over on the nookdevs website, there's a page about recalibrating the screen. I've tried it a couple of times and it's definitely improved it. Every now and then something wacky happens, but I guess that's to be expected when you let B&N develop for Android.

I had this happen myself once, and it was pretty annoying... If I didn't have adb available I don't think I could have fixed it until I did. I wasn't able to tap the screen myself, it was taping all over the place.
I did manage after a few minutes to get multitouch paint installed and it was drawing weird dots, lines, angles, etc...
I now have the recalibrate command in gscript but not sure I could run it while it's acting up. Luckily it's only happened once, and it happened while plugged in but never seen it happen again.

Happens a lot on my NC, and I think every time its because my kids touch it with dirty fingers (sweets, chocolate etc), smearing small amounts of dirt on the screen.
The screen goes nuts within few seconds, thinks its being clicked etc...
Wiping/cleaning the screen helps to resore normal behavior, btw - while the screen is moist it does not work for me at all...
Ordered screen protectors, lets see if it makes a differencel

My screen randomly goes nuts as well. It seems like a sudden, rather than a gradual thing. The screen sometimes gets pretty dirty, but cleaning it didn't seem to make much difference. Odd thing is, what DID make a difference was taking it out of the aftermarket case. I have no idea why this would work, but it does. One thing this case does is that it pushes the power and volume buttons in, as it uses four elastic straps at the corners. Maybe holding these buttons a certain way recalibrates the screen, and if you're touching it at the time, it freaks out?

I've noticed my screen only bugs out when I have it plugged into the charger.
As long as its unplugged, its fine. As soon as i pop in the cord, the screen goes haywire.
Only the wall charger though, not when its plugged into the USB on the computer.

My screen was doing that until I got a screen protector.
Sent from my LogicPD Zoom2 using XDA App

Also, if you lock and unlock the NC it should stop acting funny.

I noticed that too. Mine hasn't gone REALLY nuts since I took it out of it's case, but sometimes when playing angry birds, it freaks out to the point where I can't play. Hitting the power button, and then hitting it again, and unlocking makes it normal. Wouldn't that indicate it's software instead of hardware? Maybe there's more than one problem?

RChadwick said:
I noticed that too. Mine hasn't gone REALLY nuts since I took it out of it's case, but sometimes when playing angry birds, it freaks out to the point where I can't play. Hitting the power button, and then hitting it again, and unlocking makes it normal. Wouldn't that indicate it's software instead of hardware? Maybe there's more than one problem?
Click to expand...
Click to collapse
Mine does the same thing every now and again. And like you, locking the screen and waking it back up fixes it every time. It's definitely software related.

Do your cases have a latch? With a magnet? Because I'm starting to think that may have something to do with it.

My case has a latch, but the magnet is not against the nook when I'm using it..

HotShotAzn said:
Do your cases have a latch? With a magnet? Because I'm starting to think that may have something to do with it.
Click to expand...
Click to collapse
Heh, I've considered that.. Also considered the mystery sensor to the left of the Nook button too.. Nook is afraid of the dark.
Seriously though, with the CPU guvna' set to ondemand and wifi turned OFF before I power it off I haven't seen it reboot yet. It rebooted once yesterday and I know it had wifi left on as I had just been using it and didn't turn it off before it went to sleep.
So totally making up numbers here....
Default CPU governor + wifi on = 30% chance it's gonna reboot when it goes to sleep..
ondemand governor + wifi on = 20% chance it's gonna reboot
ondemand govenor + wifi off = <10% chance it's gonna reboot (not gonna even say 0 here.. heh)

RChadwick said:
My case has a latch, but the magnet is not against the nook when I'm using it..
Click to expand...
Click to collapse
I tested this theory. When the Nook is in the case, I get crazy screen taps when i try to type something. Out of the case, its perfectly fine.
When I just rest the Nook on the open case (not inside the straps/holders), it will also get crazy screen taps.
One thing to note is I also did not have any problems before updating to 1.0.1. Not saying the update is the cause of the problem but its one of the variables.

[Q] Top of screen very unresponsive on new NC

Hey
Just got my brand new NC and for some reason the top part of the sceen just won't easily accept input.
It took me almost 100 tries to activate the slider in setcpu.
Any ideas. ?
Thanks Pavlos

You can try this:
http://nookdevs.com/Recalibrate_the_NookColor_touch_screen

Did this work?

Yep tried that to no success.
Anything else?
Also just noticed in Market that I cannot see any payied apps.

I too have had a lot of trouble with the top edge of the touchscreen, luckily I don't use it too much so it doesn't bother me.

All 4 corners of the screen are very unresponsive for me.
For example, on the new Market, I can pretty much NEVER hit the search button in the top right corner of the screen. I have grown accustomed to pressing Menu then Search instead of using that on-screen button.
Is this not how everyone's NC is?

Mine is not as responsive, but I do not have that bad of a problem with it.

Paul22000 said:
All 4 corners of the screen are very unresponsive for me.
For example, on the new Market, I can pretty much NEVER hit the search button in the top right corner of the screen. I have grown accustomed to pressing Menu then Search instead of using that on-screen button.
Is this not how everyone's NC is?
Click to expand...
Click to collapse
same here....

You suggest thats unfixable....

Paul22000 said:
For example, on the new Market, I can pretty much NEVER hit the search button in the top right corner of the screen
Click to expand...
Click to collapse
in my case the newer market search button works a lot better than the previous one. still, far from great

Ive had the same exact issue. And can be replicated if you turn the device upside down, all 4 corners have to be touched multiple times in-order for it to register.
best way to test is in portrait mode and trying to hit the search button, tap once a second, unresponsive.....4 times in a sec and it will highlight once.

download the lcddensity app in the market place and change it to 180 that worked for me

Not exactly sure how changing the lcd density would fix this....downloaded anyway...applied...still doesn't work
What is funny though is that TouchTest the screen is insanely responsive on all areas on the screen from edges to multitouch. So im not entirely sure what the deal is.

Sometime I have to apply a little pressure to the back of the nook to get those parts of the screen to work. Pressing the bezel a little also helps. The larger density will make buttons easier to press because they are bigger. Small buttons/icons at the corners/edges of a screen are a pain. I bumped mine up to 240. Nice big juicy buttons.
Sent from Nook Color (Nookie Froyo on emmc)

I have the same here. Corners not responsive.
Not a big issue for me.
I also have the screen protector on.

Corners here also. Irritates me every time I try to search market.

Both NC I have used have the exact same sensitivity issue. It may just be part of the stock NC Kernel that is causing it for some odd reason. It is not completely impossible to work with but it is a bit of a hassle. It is really apparent in the Astro app manager/backup. When you go to check an app to uninstall, it takes like 20 taps to try and check the box to uninstall an app. Odd how it gives me trouble there but in other apps it has no problem whatsoever. Software based issue it feels.

The response from edges of screen is my biggest irritant when using the NC. It did get a LITTLE better for me when I did the recalibration linked to in 2nd post with my NC laying flat on a table with the lcd facing down.

Paul22000 said:
All 4 corners of the screen are very unresponsive for me.
For example, on the new Market, I can pretty much NEVER hit the search button in the top right corner of the screen. I have grown accustomed to pressing Menu then Search instead of using that on-screen button.
Is this not how everyone's NC is?
Click to expand...
Click to collapse
I thought that's just how it was.

exactor_mortis said:
I thought that's just how it was.
Click to expand...
Click to collapse
HAHAHAHAH me too!!! I just figured maybe soft keys rendered the actual market search button unusable or something. Wow....well, hopefully it won't start to annoy me now that I know it's supposed to work

[Q] Touch Screen issues. [SOLVED]

Ok folks, I registered here because I felt this forum was the best place to get help. Here is my problem. I use a Nook Color 1.1 running the latest autonooter, and I've started having major touchscreen problems. What happens is this: The screen has started registering touches when I am nowhere near the screen, and when I do touch the screen, it only sometimes registers at the right location. This has made it impossible to use at all, and I'd like to know if there's any way of fixing it without having to do anything on the Nook Color. Thanks for your input,
TechPlease

Reboot? Wipe the screen? Reimage?
Sounds like damage to me.

TechPlease said:
Ok folks, I registered here because I felt this forum was the best place to get help. Here is my problem. I use a Nook Color 1.1 running the latest autonooter, and I've started having major touchscreen problems. What happens is this: The screen has started registering touches when I am nowhere near the screen, and when I do touch the screen, it only sometimes registers at the right location. This has made it impossible to use at all, and I'd like to know if there's any way of fixing it without having to do anything on the Nook Color. Thanks for your input,
TechPlease
Click to expand...
Click to collapse
Clean the screen thoroughly then reboot. Does this fix the issue, even if only temporarily? If so, buy a matte screen protector. The NC screen has a tacky coating that seems to collect oil/moisture more than other screens I've used.
If that doesn't work, download a screen calibration app. There's one floating around the forums.

TechPlease said:
Ok folks, I registered here because I felt this forum was the best place to get help. Here is my problem. I use a Nook Color 1.1 running the latest autonooter, and I've started having major touchscreen problems. What happens is this: The screen has started registering touches when I am nowhere near the screen, and when I do touch the screen, it only sometimes registers at the right location. This has made it impossible to use at all, and I'd like to know if there's any way of fixing it without having to do anything on the Nook Color. Thanks for your input,
TechPlease
Click to expand...
Click to collapse
I had the exact same experience when I first tried to install CM7 to run from an SD card. I couldn't sign in to my Google account because just hovering my finger over a key produced a string of letters on the screen (ie: yyyyyyyyyyy)
It was really freaky. I had to sneak up on a key and jab it real fast so that it would type only one letter.
I also had a problem with key registration. I would go to type an "r" and a "t" would be typed. So I had to touch the key at the extreme left edge (or sometimes on an an adjacent key!) to get the letter I wanted to show up.
Fortunately, after I got CM7 up an running properly, the screen problem went away. BTW, I do use a anti-glare screen protector, which, I think, lessens the screen sensitivity a little.
If I were you, I would try restoring my Nook back to stock, and see if the screen is still too sensitive. If it is, it's time for a new Nook. If it's not, try rooting again.
Good Luck.

Try Nook Screen Recalibration on the market. I had the same problem (pressing Q gave me W). It certainly improves it.

use a screen protector or put a thin plastic sheet on your screen and then recalibrate it.
using the method given here.
http://nookdevs.com/Recalibrate_the_NookColor_touch_screen
If you are using a screen protector u can keep using it, however i removed mine after a week or two and didn't really get any weird touches what so ever after that (earlier my touchscreen was unusable).

Thanks for all your suggestions
Thanks for all your suggestions. I think it got worse after I used a recalibration app from the marketplace. For those suggesting I try an app, I can't get the NC to settle down enough to let me tap on things. Yes, I do use a screen protector, so that's not an issue. I will try recalibrating from my computer, and if that doesn't work, is there a good tutorial on how to put it back to stock, and is there a way to re-stockp) it so that if I DO need a new one, I can just return mine? Mine is (if I hadn't rooted it) still under warranty.
TechPlease

Seems like it's fixed.
I think I got it fixed. It calmed down enough for me to run the Nook Screen Calibration app from the Android Marketplace again, and that seems to have cleared the problem up. Mods, please (if you can) mark as SOLVED.

If I connect my nook color to AC adapter, touchscreen will response randomly , so I unplugged usb cable and touchscreen works again

nook hd + screen acts like its haunted

anyone have their nook hd + start acting like it haunted? while reading a book pages turn back and forth by itself. watching a youtube video and it starts doing its own thing. entering and exiting apps???

the screen also started doin some weird pixellating thing.

hydro6773 said:
the screen also started doin some weird pixellating thing.
Click to expand...
Click to collapse
I have had the screen do odd things from time to time but I have never seen "some weird pixellating thing".

did you do anything to fix it?

hydro6773 said:
did you do anything to fix it?
Click to expand...
Click to collapse
Did you try cleaning your fingerprints off?
Sent from my SCH-i705 using XDA Premium HD app

yes i cleaned the screen off and all my finger prints. I was doing some reading and some people say that they had the same problem and they said something about holding the power button for 20 seconds and then holing it for 2 seconds to turn it on. I tried that but it still eventually did the same thing. I also read some people said that once they put a screen protector on it seemed to help. What do you think?? Have you had this problem at all. I cant return it to B & N since its rooted and was purchased off craigslst. Is this a known issue?

When mine gets weird and I get phantom finger presses just shutting the screen off and turning it back on fixes it. Usually happens after long game sessions.
Sent from my SPH-L900 using XDA Free mobile app

This is the only problem I have with my nook HD+, but I am getting close to finding the problem.
I have managed to get dmesg to print out when the problem is occurring, and that isn't easy when it wants to start doing random presses !
Every time this problem occurs I see the same thing:
lowmemorykiller: killing 'ndroid.settings' adj 1000 to free 19712KB on behalf of 'kswapd0' because cache 85116KB is below limit 86016KB for oom_score_adj 12
free memory is 5568KB above reserved
When the crazy screen presses start happening lowmemorykiller begins closing all sorts of things one immediately after another, and then crashes out with a negative memory available like :
-58329KB available
I'm guessing there is a memory leak somewhere.

I've been getting phantom touches since upgrading to CM 11 (6/16 build and up), although I left the Touch & Hold delay to its stock "short" setting when I upgraded, so not a good experiment. (Two variables.)
For me, a web page will register a "click" while browsing with my thumb hovering about an inch over the screen.
I have "show touches" enabled, but I don't see a touch.
I have a screen protector. (Have had it for months.)
For now, I'm setting the Touch & Hold delay to Medium as a work around.