Whats up XDA.
So I have a galaxy tab sch-i800 running on cyanogenmod 9. I plan to fit my tablet into the dashboard of my car. I have everything worked out except how I'm going to turn it on and off. since I won't be able to access the power button I need a way for it to power on/off by its self, that way its not occasionally dead when I start my car.
At first I planed to use tasker to turn the tablet on when plugged in (or when I start my car, it turns on). and then turn off after an hour of inactivity (or an hour after I've turned off my car).
But now that I'm looking at tasker it won't let me use the command "turn on" (even though I'm rooted) and I don't see a turn off command.
Is there any apps out there that can help do exactly what I want?
I have noticed that 4.2 and higher automatically boots the device when it is plugged in, I'm on 4.0, would upgrading screw up cyanogenmod?
Thanks!
Related
Hey fellas..
Whenever I sync any bluetooth device to my phone, it periodically turns on my display on my Samsung Omnia (it turns off normally on its own). As soon as I turn off the bluetooth device or disconnect with it, then my display stays off. My bluetooth stays enabled during all this testing FYI.
Has anybody ran into this issue before?
Thanks in advance
why would that be an issue?
nir36 said:
why would that be an issue?
Click to expand...
Click to collapse
I have my bluetooth headset on and my screen keeps turning on every few minutes. Its any bluetooth device being linked to my phone.
Bumping my question back to Page 1.
you mean... it lights up every now and again while a bluetooth device is connected? or only while connecting to the device?
With my bluetooth headset connected the screen turns on every few minutes and it appears that the time inbetween the screen turning on is identical. I think the headset is just checking with the phone to keep connected, which turns the screen on.
When I synced via bluetooth to my desktop, the screen turns on whenever I do anything over bluetooth between the computer and the phone.
Is there any registery settings that I might try to prevent bluetooth from turning my screen on? ever?
Same thing here mate. Only my Touch Pro turns on the display (and keeps it on no matter what) whenever some BT accesory is connected, whether it be the carkit or the headphones. Pressing the power button causes the screen to turn off only to turn on by itself a second later. When BT accessory is disconnected everything works normal. Oh and I have bluetooth on all the time on the phone (never turn it off), but it only does this with smth connected. I suppose it's some kind of keepalive, but it annoys the hell outta me cause I can't listen to music w/o draining my battery and even starting some programs by accidental screen presses. So if anyone has a solution to keep the screen off it'd be more than welcome.
ok so i've had conflicting answers telling me;
1. not possible
2. it's the kernel
3. it's the rom
i need to power on my galaxy tab 2 (7) from fully off when charging starts (it has a cable constantly plugged in but it needs to boot up to the os (instead of the charging icon) when the power is applied.
what do i need to do this?
what controls this function?
Chainfire had an app (NoMoarPowah!) that let you manually hit a restart button on screen (this is fine) but since ics; the only function i need from the app (power on via the touch of the screen) doesn't work.
I've contacted Chainfire to see if he will update the app but no response.
I have no access to the hard buttons on my tablet which is why I need this feature. I can't use sleep mode because if the phone ever dies or runs out of battery while the charging is off i wont be able to turn it back on
is there some alternative i can do?
So, I need to know which Kernel or app or anything I need to take my Galaxy Tab 2 7.0 - STOCK - but rooted and make the knock knock feature work like the LG phones have. Installing this in the dash and since there is no front button, turning this on my be a pain in the rear...
Actually, I may have answered my own problem... I am installing this tablet in a custom mount and using it for my car as the main source of audio/video/nav. Since there is no home button, I originally wanted the knock knock wake function, but in researching this it seems that it works on certain kernels (that are not compatible with this device) and it also drains the heck out of the battery... So let me run this by everyone who may have input and see if it makes sense. To me, it does, but I may be underthinking the solution...
The OTG connector will be home to a hub that has one input (for power) and two outputs (for expansion). I am going to have the USB power input hooked up to the USB power in my center console, which only has power when ignition is ON. So, my thought is this. The tablet will not have power when ignition is off, but when you key on the USB will have power and thus will charge the tablet. On charge, it should WAKE, yes? The dev option for STAY AWAKE will be used to, when charging, always stay on... then the 1 minute time out option will turn the screen off shortly after ignition is off.
Make sense? Should work?
I am getting ready to, next weekend, finalize my build and install my Galaxy Tab 2 in my car as my main infotainment system... I have it set so you sadly will not have access to the power button, however it is wired to an ignition power circuit w/ a usb charger. So, this means that when the car turns on, the tablet powers up. Developer options set to never turn off while charging, so essentially my tablet will stay on while driving or when the key is on. Here's my concern... when you key on, you have about 10 seconds to swipe and open this thing otherwise it goes back off normally. Technically it is charging, so it may stay on (have not yet tested this as I just thought of it... lil slow today lol) but in the event it does not, can I change the delay when powered on to unlock to like, 60 seconds?? Tablet is stock, but rooted... Thanks!
It can be done with Tasker+secure settings plugin
Search in google "Tasker – How to Unlock Your Screen", with this guide you create the task , then you just have to create the tasker context that will trigger it, a simple "power any" context.
Double tapping the screen to wake is one of the options you get with Tasker.
Pp.
I'm using my tablet as a car navigation device. I may leave my car parked for up to a week sometimes.
Ideally, I'd like to turn the device off when I stop my car (cable unplugged or screen off) and then turn the device on when I start my car (cable plug in, screen on). Since it takes a while to boot up (and I don't know how to autoboot when the cable is plugged in on a LG g pad 8.0), I don't want to actually turn off the tablet.
Therefore, I have installed "Automate" to enable airplane mode when screen is off and turn off airplane mode when screen is on. I also have Greenify and enabled Aggressive Doze. However, even doing this, I notice that while the screen is off, the phone will still come out of doze periodically. Also eventhough airplane mode is on, Gsam Battery stats show the phone radio is on the entire time (but not data).
Is there a way to force it to doze and not wake up until I tell it to?
Also, for some reason, as it keeps going into airplane mode and back out, I will get a message saying the sim card has been removed and it will force me to reboot. If I don't go into airplane mode at all, I dont get the message. It's only from switching it on and off.