Database Develop

Screen wont turn off when plugged in - CM

Title says it all...
When you plug in the nook color the screen wont turn off in Cyanogen Mod... This isn't good when you are using <2 amp charging (say 500 mA from standard usb) as the screen uses more power then the charge provides... so it actually drains the battery. Any ideas?

When you say it will not turn off, do you still have a display or just the backlight? When I am charging my nook in standby, I have noticed that the backlight will remain on until I tap the power button. That gives me a black screen
Sent from my NexusOne using Tapatalk

numus said:
Title says it all...
When you plug in the nook color the screen wont turn off in Cyanogen Mod... This isn't good when you are using <2 amp charging (say 500 mA from standard usb) as the screen uses more power then the charge provides... so it actually drains the battery. Any ideas?
Click to expand...
Click to collapse
I noticed that recently with one of the later nightlies. I can still power off while charging though, can you?

I put it in sleep, I don't turn it off.

Same problem here. I just turn have to remind myself to manually turn it off whenever I plug it in. Probably some kernel bug or something?
Not a huge problem though. =)

numus said:
Title says it all...
When you plug in the nook color the screen wont turn off in Cyanogen Mod... This isn't good when you are using <2 amp charging (say 500 mA from standard usb) as the screen uses more power then the charge provides... so it actually drains the battery. Any ideas?
Click to expand...
Click to collapse
Turn the screen off by hitting the power button.
This is not a bug but a workaround for a kernel bug. We fixed a bug that would cause kernel panic if you let the device sleep while plugged into USB. However, it would still eventually kill ADB so for now I start a partial wake lock when connected to USB.

Just wondering when this might be fixed? Having to worry about the screen being left on when plugged in is a problem for me. I normally charge my Nook from a standard usb. If the screen is on it drains the battery.

ron_e said:
Just wondering when this might be fixed? Having to worry about the screen being left on when plugged in is a problem for me. I normally charge my Nook from a standard usb. If the screen is on it drains the battery.
Click to expand...
Click to collapse
When what might be fixed? As Dal just said, this IS the fix for the time being. And it isn't a worry. Just plug it in, and hit the power button; your screen will turn off, and you will be good to go.

Divine_Madcat said:
When what might be fixed? As Dal just said, this IS the fix for the time being. And it isn't a worry. Just plug it in, and hit the power button; your screen will turn off, and you will be good to go.
Click to expand...
Click to collapse
The fact it sounded like a temp fix "for the time being" is why I asked about timing. Turning the screen off is fine but I have had one case where the screen turned back on during the night and I woke to a nook that was almost dead even though it was plugged in all night. Even an answer like planned for next RC or for the final release of 7.1 would be helpful.
If there is not fix coming it would be nice to know that too.
I appreciate everything that has been done for the nook and enjoy using it as a tablet.
Using the high capacity cable is not an option. I have tried two in my nook and one would not charge it all and the second was very hard to plug and would sometimes charge it. A standard USB cable has always worked fine. I have read about bad high capacity cables taking out more than one nook so I won't even go there anymore.

Have this been solved somehow?
I have recently mounted my Nook Color on the kitchen wall and it is annoying to manually having to push the power button to turn off the screen, instead of having the screen turn off automatically after a specified time.

Nexus7 is turning itself off during overnight charge

I was wondering if anyone else was having this issue.
I've charged my Nexus7 overnight on three occasions. Plugging it in before I went to bed (~1AMish) and getting it on my way to work (~8:30AMish). Out of those three times, on two of them, when I went to get my tablet the unit was powered off. I know for a fact that when I plugged it in, it was on, and no one touched it in the meantime.
The most recent occasion was this morning.
On all three occasions, the unit still had 40-50% battery life left.
On two other occasions, I've charged it during the day for a few hours, and it was fine.
Additionally, I've never had the unit turn itself off overnight when it wasn't plugged in. And I'm using the charger/cable that came with it.
Lastly, the first occasion was on the stock kernel/rom, and the second was on the motley kernel (but stock ROM).
So it seems like something is causing the unit to power itself off if it's on the charger for too long. This is concerning, because the only thing I can think of is that it's overheating and shutting down as a protection mechanism.
Any thoughts or ideas?

Plugged mine in for the first time last night at 11:30. Slept till 8, hit the power button and everything was fine.
Basically, no issues here.

Was it fully charged when you switched it back on? I ask because I shut mine down for the overnight charge last night (plugged into a laptop, not the wall - there's only one socket near the bed and my battery-sucking phone gets that juice), and when I woke up it had only gone from ~30% battery to 55%.

phonic said:
I was wondering if anyone else was having this issue.
I've charged my Nexus7 overnight on three occasions. Plugging it in before I went to bed (~1AMish) and getting it on my way to work (~8:30AMish). Out of those three times, on two of them, when I went to get my tablet the unit was powered off. I know for a fact that when I plugged it in, it was on, and no one touched it in the meantime.
The most recent occasion was this morning.
On all three occasions, the unit still had 40-50% battery life left.
On two other occasions, I've charged it during the day for a few hours, and it was fine.
Additionally, I've never had the unit turn itself off overnight when it wasn't plugged in. And I'm using the charger/cable that came with it.
Lastly, the first occasion was on the stock kernel/rom, and the second was on the motley kernel (but stock ROM).
So it seems like something is causing the unit to power itself off if it's on the charger for too long. This is concerning, because the only thing I can think of is that it's overheating and shutting down as a protection mechanism.
Any thoughts or ideas?
Click to expand...
Click to collapse
I had this happen to me on the first unit I had... I was actually using stickmount to transfer some data and left the usb adapter plugged in for about an hour and when I picked it back up it was DEAD.... I could not get it to boot up at all until I did the recovery (power/volume) method and then everything was fine but I returned it anyways cause of a defective screen... I am now on my 3rd unit from Sam's Club and I think I might have a keeper...? (Knock on wood) :fingers-crossed:

CrookedKnight said:
Was it fully charged when you switched it back on? I ask because I shut mine down for the overnight charge last night (plugged into a laptop, not the wall - there's only one socket near the bed and my battery-sucking phone gets that juice), and when I woke up it had only gone from ~30% battery to 55%.
Click to expand...
Click to collapse
Yes, it was at 100%.
Keep in mind that charging via computer's USB port takes much longer. Maybe your laptop went into sleep mode and shut down power to the USB port?

phonic said:
Yes, it was at 100%.
Keep in mind that charging via computer's USB port takes much longer. Maybe your laptop went into sleep mode and shut down power to the USB port?
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Click to collapse
Nope, my fiance's phone was plugged into the same laptop and it was fully charged in the morning. And as a general rule, I've never known the computer to automatically sleep while on AC power, even when the screen is closed.

Thank god i'm not the only one experiencing this. My nexus 7 always seems to turn off after I leave it overnight plugged in for charging. I thought it was a kernel issue but i've switched kernels and i still experience it. Still unsure as to what is causing it.

Same here. Its odd it only seems to be for an extended period of time. Also my battery was indeed fully charged. Should I exchange at Sam's?
Sent from my Nexus 7 using xda premium

There is nothing else wrong with the tablet. I have a feeling it could be some sort of hardcoded feature where if it notices that you're plugged into the wall charger with 100% battery and the tablet is in deep sleep for a certain period of time, it automatically shuts down.

evonc said:
There is nothing else wrong with the tablet. I have a feeling it could be some sort of hardcoded feature where if it notices that you're plugged into the wall charger with 100% battery and the tablet is in deep sleep for a certain period of time, it automatically shuts down.
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Click to collapse
Ikr. First time it happened to me I was like wtf? It might to stop the 2 amp charger from overcharging? My unit is fine, I think the sound is just right. I might get that squaretrade warranty though.
Sent from my Nexus 7 using xda premium

Well, I feel a little better that I'm not the only one with this "problem".
The question is, is this a "problem" or a "feature". I guess we won't know unless we ask Google/Asus (good luck getting that answer) or enough people respond saying that it happens to them too. But if people start saying it does not happen to them, it makes it more likely to be a problem....

This happens to my phone due to overheating. The tablet does run hot when charging. See if there's a temperature logging app and run it overnight.
Sent from my LG-P999 using xda app-developers app

It would be nice if it would just cut off the battery charge and run directly on A/C. But I guess I would rather have it power off than explode.

isnt bad to charge it overnight like i believe from 1% to 100% chrge is like almost 3hrs fully chrged.. i just alarm myself for 3hrs to check if its fully chrged already then unplug it
Sent from my Nexus 7 using xda app-developers app

lyrad12 said:
isnt bad to charge it overnight like i believe from 1% to 100% chrge is like almost 3hrs fully chrged.. i just alarm myself for 3hrs to check if its fully chrged already then unplug it
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
True, it's not good to constantly charge the battery once it's full.
Most devices however have a built in charger kill switch once it reaches that point. Laptops for example will switch to A/C power and only start recharging the battery once the level drops to ~95%. I believe my phone does this as well (SGS2).
I guess I'm OK with it turning itself off, assuming that it really is a safety feature. My main concern was something was wrong. It would have been nice if they mentioned this in the 100pg Nexus Guide eBook though .

phonic said:
It would have been nice if they mentioned this in the 100pg Nexus Guide eBook though .
Click to expand...
Click to collapse
Ikr, such a thick guide
Sent from my Nexus 7 using xda premium

I want to add my own observation -- mine was almost fully charged, I plugged it to my computer's USB, turned the screen off, walked away. A couple hours later, the Nexus 7 was turned off. But I was shocked to find that, pressing the power button couldn't turn it on. The first thought came into my mind was that my computer did not charge the Nexus 7 and the battery ended up completely drained. So, I plugged it to the wall charger, left it on for a day. 1 day later, I tried to turn it on again. No, it didn't work. I was panic and decided to Google about how to reset and checked if I could wipe it and sent it back for a replacement. I found that pressing the power, vol up/down button at the same time can force a reboot. I tried that and bingo, it booted into the bootloader. Before I wiped, I decided to try to boot back to the Android OS. Surprisingly, that worked. I was happy and decided to ignore this incident. Then, today, it happened again. This time, I immediately used the power + vol up/down trick to reboot, and that booted me right back into Jelly Bean. I checked the battery status and it's fully charged, which meant my computer was charging it all along. For some reasons, the Nexus 7 would just turn off itself. And, in my case, pressing the power button alone would not reboot it.

Toys Samurai said:
I found that pressing the power, vol up/down button at the same time can force a reboot. I tried that and bingo, it booted into the bootloader.
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Click to collapse
Sounds like to me that it's hard locking, not "powering off", and you're forcing a reboot. Long-press of the Power button should do the same thing.

I can't say I have much to offer in regards to this issue, but am I correct with my observation that everybody experiencing this issue has experienced it while their N7 was plugged into a computer of some sort for an extended period of time? Has anybody had this happen when plugged straight into the wall outlet?

Here's another update with an interesting 'twist' since my last post.
I've charged it twice in the meantime. Once was, again, overnight, and I woke up to find it powered off. A simple "on" press brought it back on.
However, on Saturday, I used it heavily and was down to about 40%, so I plugged it in around 11AM. I meant to grab it around 3PM when I went out, but forgot about it. Got home late, and went to look at it at about 11PM (12 hours later). It was charged to 100%, running off the A/C power, and still on.
This is weird, because if I leave it plugged in "overnight" for 8 hours, it will almost always turn off sometime before I grab it. But when left plugged in during the day for 12 hours, it stayed on. I wonder if it handled the situation different based on the time of the day???

wont turn on

I was using my atrix and put it down went to get something to eat came back 15mins later and it wont turn on! It was at 56% battery! So i plug it in and the green LED turns on but I can't do anything. I have pressed the power button, and I have pressed the power and volume down together both for 10+ secs and nothing is happening please help!

Ever get it back on? My battery drained to 1% last night, so I shut it down, charged it all night, and now mine wont turn on. Has the green light just like yours.
Sent from my phone.

Markyzz said:
Ever get it back on? My battery drained to 1% last night, so I shut it down, charged it all night, and now mine wont turn on. Has the green light just like yours.
Sent from my phone.
Click to expand...
Click to collapse
I had to reboot mine in to flash mode in order for mine to come back up. I had to hold the down volume (or up cannot remember right now) + power for a minute nearly. Then it rebooted correctly into normal mode.

Markyzz said:
Ever get it back on? My battery drained to 1% last night, so I shut it down, charged it all night, and now mine wont turn on. Has the green light just like yours.
Sent from my phone.
Click to expand...
Click to collapse
So I ended up calling AT&T and they went ahead and shipped me a new MAHD.
I took the dead phone to work and tried charging with my work charger, and now it works! When it finally turned on, the battery level was at 3%. So lesson learned: Do not let your battery drain to 1%!
Sent from my phone.

me too....
Lionsbane said:
I was using my atrix and put it down went to get something to eat came back 15mins later and it wont turn on! It was at 56% battery! So i plug it in and the green LED turns on but I can't do anything. I have pressed the power button, and I have pressed the power and volume down together both for 10+ secs and nothing is happening please help!
Click to expand...
Click to collapse
I am having the same problem. I can get the boot screen up if i hold the buttons in at a certain time while the phone is plugged in and attempting to turn on. however, the phone cuts out no matter what and repeats the cycle even with the boot screen up. during the few seconds i can get the boot screen up, i'm unable to select an option, only scroll up or down and highlight them. then the phone cuts out and 20 secs. later attempts to turn on again but never gets past the motorola icon. Any suggestions? I originally thought it was the battery so i ordered one and installed it correctly and charged it, but still the same thing is happening. When plugged into a pc, charge light comes on but phone won't attempt to turn on....?????????

katlic said:
I am having the same problem. I can get the boot screen up if i hold the buttons in at a certain time while the phone is plugged in and attempting to turn on. however, the phone cuts out no matter what and repeats the cycle even with the boot screen up. during the few seconds i can get the boot screen up, i'm unable to select an option, only scroll up or down and highlight them. then the phone cuts out and 20 secs. later attempts to turn on again but never gets past the motorola icon. Any suggestions? I originally thought it was the battery so i ordered one and installed it correctly and charged it, but still the same thing is happening. When plugged into a pc, charge light comes on but phone won't attempt to turn on....?????????
Click to expand...
Click to collapse
Our phone doesn't receive power from the cable until it's fully booted. Factory cables are a good work around.
Sent from my MB886 using xda premium

I have the same problem.
I think it's impossible to fix.
I tested with original charger.
I have also tried every possible button combinations.
and does not start
Has anyone been able to fix it?

[Q] Power on with CM10 tricky from dead battery?

Seems I cannot find any other people asking this question
Basically I have Nook HD+ rooted and CM10.1 and it works great. I have google market on there and the original Nook OS has been sent to the nether region of hell where it belongs. So it's a pretty decent basic android tablet.
But when I let the battery go to zero and it shuts itself down, it seems that it doesn't turn back on so easily.
I'll charge it overnight and then attempt to power it on, but it doesn't do anything. I see the screen backlight come on but no "nook" logo.
So then I try plugging it back in and hold power and the "n" for 10 secs or so. I'll see the screen turn off.. I'll do that a few more times and finally I see the dead battery logo show up..even tho I charged it all night.
So then I let it charge a bit longer and try again with it still plugged in and finally it turns on.
I was just wondering if others saw this and if there was some proper method I should be using to restart it to avoid this.

Yeah, my nook was doing that same thing for a while. Now though, I let the battery die and I can't get the thing to turn on at all. No backlight lights up, no battery charge icon, the thing's led just glows green for 2 secs then flickers to orange and stays orange for a few secs and then the led turns off. No matter how long I hold the power button or the power plus nook button, nothing happens. I hope my tablet isn't dead forever. Anybody else have this problem and find a way of fixing it?
Sent from my SCH-I535 using xda app-developers app

I also forget to charge mine and it got discharged. I charged it for a bit but couldn't power on. When I plugged the power cable it showed orange light. After changing the power socket and repeatedly press power button for like 7 secs it turned on with 28%. I'm Using CM10.2.

mathedrivein said:
Yeah, my nook was doing that same thing for a while. Now though, I let the battery die and I can't get the thing to turn on at all. No backlight lights up, no battery charge icon, the thing's led just glows green for 2 secs then flickers to orange and stays orange for a few secs and then the led turns off. No matter how long I hold the power button or the power plus nook button, nothing happens. I hope my tablet isn't dead forever. Anybody else have this problem and find a way of fixing it?
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
Just keep trying.. i noticed my backlight was so dim that i wasn't sure it was on either until i turned off all lights... then after holding power for like 12 secs i saw it go even darker so I know my backlight was on now.. but like you said.. no logo. Just extrem0 said.. you gotta keep playing with it, unplug it, plug it in again, etc.. it's really hokey. I've been sure to keep it charged up since my last post so I am just avoiding the problem. But it is stopping me from recommending a modded nook to my friends and family because the first time this happens they will come crying to me to help them.

mathedrivein said:
Yeah, my nook was doing that same thing for a while. Now though, I let the battery die and I can't get the thing to turn on at all. No backlight lights up, no battery charge icon, the thing's led just glows green for 2 secs then flickers to orange and stays orange for a few secs and then the led turns off. No matter how long I hold the power button or the power plus nook button, nothing happens. I hope my tablet isn't dead forever. Anybody else have this problem and find a way of fixing it?
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
I also have this problem on my Nook HD+. I don't think there is a solution for it, so I'm going for a warranty.
However, before you go for a warranty; flash the stock ROM back on. You're probably think how do I do this with no battery? Well, once your Nook boots up, your tablet will not charge at all. So, we need to charge your Nook whilst it's powered off. Again, how do I go about this? Well, turn on your Nook charger from the wall socket, but do not plug it into your Nook yet. Now, hold the power button on your Nook (ensure that your have no battery at all, and that your Nook does nothing when you hold the power button). Whilst holding the power button on your Nook, plug in your charger. It should turn green, then turn orange. It should stay like this for a while.
Give it a couple of hours, and it should charge up to around ~60% (you may be lucky if it charges more). With that much battery, put the Stock ROM back on and go for a warranty. Don't rely on this method for too long, as with time it will also stop charging with this method. At the moment, it will not charge when the Nook is turned on. Go for a warranty whilst you still can.
All the best.
P.S. Flashing Stock ROM here (step 6) thanks to leapinlar: http://forum.xda-developers.com/showthread.php?t=2062613

I can hear the unlock/lock sounds but my Nook HD's screen wont turn on

On Friday night the tablet ran itself down and shut off after watching some movies before bed. The screen and the rest of the tablet was functioning normally up to this point. I didn't bring my charger home with me from school, so it stayed dead for a few days. The tablet is now fully charged (or at least almost full. I left it on the charger overnight and this morning when I unplugged it I couldn't get the screen to turn on. At first I thought I forgot to plug the charger into the wall, but now I realized that the tablet *is* on, but the screen wont come on. My computer reads the device, and I can transfer files to/from.
When I hit the power/home button I immediately get a lock/unlock sound. Holding the power button to try to hard reset just makes it make the lock sound twice. Any advice here? Is my screen dead?

tdnookhd said:
On Friday night the tablet ran itself down and shut off after watching some movies before bed. The screen and the rest of the tablet was functioning normally up to this point. I didn't bring my charger home with me from school, so it stayed dead for a few days. The tablet is now fully charged (or at least almost full. I left it on the charger overnight and this morning when I unplugged it I couldn't get the screen to turn on. At first I thought I forgot to plug the charger into the wall, but now I realized that the tablet *is* on, but the screen wont come on. My computer reads the device, and I can transfer files to/from.
When I hit the power/home button I immediately get a lock/unlock sound. Holding the power button to try to hard reset just makes it make the lock sound twice. Any advice here? Is my screen dead?
Click to expand...
Click to collapse
How long are you holding the power button. When I get the sleep of death under CM11 I have to hold the power button for a slow count of 15 then wait a few seconds and hold it again for a slow count of 3.