Can double-tap to wake be enabled? - Galaxy Tab S2 Q&A, Help & Troubleshooting

I'm using my Tab S2 9.7 in a mount in my car and would love to be able to double tap screen to wake rather than fumbling around for the button.

Needs a custom kernel.

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Can't turn off double tap to wake?

I've tried a couple of ROMs with double tap to wake. I honestly love the feature, but I've had too many issues with wake locks in my pocket, so I've decided it's not worth it and I'll turn it off. The problem is, it doesn't actually turn off. I'll hit that off switch, tap my screen a few times, and it's awake again. This is frustrating because then it wakes up in my pocket still. Is there any way to permanently remove it from the ROM? Maybe something I can flash or something I can change to completely disable this feature?
Grab /system/lib/hw/power.shamu.so from a pre-rooted (untouched) stock rom or a rom that hasn't enabled it
WyldOne91 said:
I've tried a couple of ROMs with double tap to wake. I honestly love the feature, but I've had too many issues with wake locks in my pocket, so I've decided it's not worth it and I'll turn it off. The problem is, it doesn't actually turn off. I'll hit that off switch, tap my screen a few times, and it's awake again. This is frustrating because then it wakes up in my pocket still. Is there any way to permanently remove it from the ROM? Maybe something I can flash or something I can change to completely disable this feature?
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FWIW, Exodus and I'm sure some other ROMs, have a setting to prevent pocket wake ups by using the proximity sensor.
WyldOne91 said:
I've tried a couple of ROMs with double tap to wake. I honestly love the feature, but I've had too many issues with wake locks in my pocket, so I've decided it's not worth it and I'll turn it off. The problem is, it doesn't actually turn off. I'll hit that off switch, tap my screen a few times, and it's awake again. This is frustrating because then it wakes up in my pocket still. Is there any way to permanently remove it from the ROM? Maybe something I can flash or something I can change to completely disable this feature?
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Click to collapse
Are you sure it's not ambient display waking your phone?
Eh... "ambient display" doesn't wake your phone. Ambient display just shows WHEN your phone is awoken by... tap to wake, shake to wake, incoming notification.
OP: Some people confuse tap to wake and shake to wake. Nexus 6 implements shake to wake by default. Problem is that tapping on the screen can.... shake the phone.
This generally should NOT be going off in your pocket. Either, that is. Reason is that it is *supposed* to use the state of the proximity sensor as a CONDITION on whether or not it should start up ambient display. The proximity sensor will read as "near" when the phone is in your pocket, thus prevent tap or shake to wake from triggering ambient display.
So sounds like you probably tried a couple of different sysimages that both contain a bug that stops it from taking the proximity sensor into account. My guess would be something that is based on cyanogenmod (aka "the buggiest android ever conceived"). Try stock and see if the problem goes away.
Personally, I prefer to use a custom ROM with native LED control and disable ambient display.
danarama said:
Grab /system/lib/hw/power.shamu.so from a pre-rooted (untouched) stock rom or a rom that hasn't enabled it
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Click to collapse
what do you even mean?
slamsal said:
what do you even mean?
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What part don't you understand?
If you haven't got a modified Nexus 6 with this problem, then this isn't relevant to you.

tap to wake ?

Is there something similar to tap to wake ?
I use gravity screen, works well enough.
True tap to wake requires hardware that supports it. The Fire does not seem to support it.
Note, gravity screen does not support any kind of tap to wake, nor the absent proximity sensor in the fire. It just uses the accelerometer to detect a change in orientation to wake the screen. I haven't really tested battery life before the app, so I can't really say how much it drains. Just that it works beautifully, I pick up the tab and the screen wakes, no need to hit the power button.
Now if there was only some way to disable the lock screen altogether...
my lock screen is disabled i am on cm12.
I will try gravity screen , thanks
Sent from my A0001 using Tapatalk
julianpaul said:
Note, gravity screen does not support any kind of tap to wake, nor the absent proximity sensor in the fire. It just uses the accelerometer to detect a change in orientation to wake the screen. I haven't really tested battery life before the app, so I can't really say how much it drains. Just that it works beautifully, I pick up the tab and the screen wakes, no need to hit the power button.
Now if there was only some way to disable the lock screen altogether...
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Gravity Screen is a godsend. Battery drain in minimal with proximity sensors, might be more triggering off accelerometer. Actually improved battery performance on my mobile as it also blanks the screen when pocketing the phone. I rarely use the physical power button now except to reboot.

screen wake up

Hi,
Im wondering if there is any option to wake up screen when locked other than using sleep button , i mean something like double tap the screen or touching the finger print sensor...
Thanks
Latter works.
Inset up pick up to wake and face recognition swipe to unlock. So whenever I pick up the phone I see the notifications and can swipe them away without unlocking the phone.
Awesome

Wake up device by touching screen?

Hi,
I have a tablet which doesn't support double tap 2 wake. But I want to easily wake up the device when it is chargin.
Is there any Xposed module which let's the digitizer be always on when chargin and react when touched and wake up the device/screen?
Thank you!
joq3 said:
Hi,
I have a tablet which doesn't support double tap 2 wake. But I want to easily wake up the device when it is chargin.
Is there any Xposed module which let's the digitizer be always on when chargin and react when touched and wake up the device/screen?
Thank you!
Click to expand...
Click to collapse
As far as dt2w is concerned I haven't seen any modules that do that. A custom kernel with that feature, if available, might be the only way.
There are any number of ways to keep the screen on while charging, though. Stay Awake in developer options, caffeine (app or in some ROMs), screen saver / daydream settings, etc.
Do a web search for "keep screen on while charging" and you'll find all kinds of info.
Moto G5S Plus XT1806, balanceOS 2.0, MultiROM, XDA Legacy
joq3 said:
Hi,
I have a tablet which doesn't support double tap 2 wake. But I want to easily wake up the device when it is chargin.
Is there any Xposed module which let's the digitizer be always on when chargin and react when touched and wake up the device/screen?
Thank you!
Click to expand...
Click to collapse
In Developer Options, there is an option to prevent the screen from sleeping while charging.
ie your screen will never sleep & all your contents will be visible.

Any way to switch from tap to wake to double tap to wake ?

Hi there,
Tap to wake is a neat feature but I find myself waking up my phone too often by mistake, so I tried to figure out a way to get the old double tap to wake back, but couldn't find out how.
I guess it must be implemented into custom kernel ?
Any advice would be appreciated !
Same, I had to turn this off b/c my phone kept waking in my pocket and changing songs.
I noticed too sometimes my phone wakes up in y pocket, coming from OnePlus it surprised me cause I'm used to have pocket mode. Hope there will be a workaround later.
I replaced the Pixel Launcher with Nova Launcher. Light years better. While there is no double tap to wake, you can double tap to lock the screen then just use the fingerprint reader to unlock the screen. Since owning the OG Droid long ago it seems, I have yet to find a home launcher better than Nova. Worth every penny.
Double Tap - Apps on Google Play
Easy to turn on/off screen without power. Not affected to unlock by fingerprint
play.google.com
Works perfectly on Pie.
As for Q...? Give Google time and they will screw up anything and everything.
I use NovaLauncher too and all my devices for years now. I love it.
But that's not what me and OP are complaining about. We want to double-tap the screen while the phone is laying a table and have it wake up to lock screen. Picking it up and using the fingerprint sensor on back doesn't help.
Lift to Wake works, but you have too, duh, lift it to wake it. We want the double tap for our fingers, but not erroneous dbl tap detections when phone is moving around in pocket or in my hand.
I can't tell you how many times music player skipped forward or back b/c or incorrect dbl taps, waking, and then more taps from my pocket contents or whatever.
I'm using OnePlus launcher port as I'm used to it (and I love the gesture to access hidden apps from app drawer, asking for fingerprint).
And I'm happy with it, I use Gravity box so I can turn the screen with double tap on status bar.
For now I disabled tap to wake, and I use tasker to turn on always on when there's an incoming notification, so that I don't have to wake my screen just to check if there's something new.
I'm confident someone will give us a custom kernel allowing double tap to wake someday !
Seems like there's something wrong with proximity sensor, I noticed that after trying to play with proximity sensor in tasker, it always return 5cm.
Updating to February build did not solve the issue, that could be the reason why there's no pocket mode.
Anybody else with this problem ? (There are several apps that can read sensors and check for proximity one.)
Did anyone ever figure this out. I really like the double tap to wake so I just tap my phone while it sits on table to wake. I never had an issues w/tapping to wake before (LG v35, etc) and I now realize why it is a huge problem for myt 4A 5G -- stupid Google make it tap to wake, not double tap. For me, this cause constant waking and then irritating unwanted activity (music changing, podcasts stopping) while my phone is still in my pocket. Arrrrg.
StephenMSmith said:
Did anyone ever figure this out. I really like the double tap to wake so I just tap my phone while it sits on table to wake. I never had an issues w/tapping to wake before (LG v35, etc) and I now realize why it is a huge problem for myt 4A 5G -- stupid Google make it tap to wake, not double tap. For me, this cause constant waking and then irritating unwanted activity (music changing, podcasts stopping) while my phone is still in my pocket. Arrrrg.
Click to expand...
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If your phone wakes up in your pocket, you must have a problem with proximity sensor, i had to remove my screen protector because of that, and now, no more accidental wake up while in the pocket (but i still miss the double tap to wake).

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