Does CM7 LED Notifications drain the battery? - AT&T Samsung Galaxy S II SGH-I777

Coming from the Captivate, I know that the SGS2 has some issues with BLN draining battery. I run CM7, however. Do the LED Notifications also hold a battery-draining wakelock for the SGS2?

On cm7 you can set how long the notification lights stay on. Plus they do not use too much battery since the are OK n, now if they blinked on/off for the whole time it wojld probably drain further. I have mine set to timeout after 30 minutes.
Sent From My KickAss ATT SGS2 SPORTING CM7

I'm 90% certain the CM7 implementation also holds wakelocks when the LED is on

Entropy512 said:
I'm 90% certain the CM7 implementation also holds wakelocks when the LED is on
Click to expand...
Click to collapse
Yes you are correct. I was just stating that you can set a timeout on the backlights which turns off the wake lock i believe. At least the lights turn off. You can set the notification lights to NEVER, 5,10,15,30, or 60 minutes. I have mine set to 30 and havent noticed an issue with drain. Most my drain comes from when I am actually using the device.
Sent From My KickAss ATT SGS2 SPORTING CM7

I have never seen this led backlight. What makes a come on where is it?
Sent from my SAMSUNG-SGH-I777 using XDA App

Edgarhighman said:
I have never seen this led backlight. What makes a come on where is it?
Sent from my SAMSUNG-SGH-I777 using XDA App
Click to expand...
Click to collapse
There are settings in CM7 for it, on some stock-derived ROMs there is BLN support.
It makes the touchkey lights stay on when there is an active notification - but the way it is implemented causes significant battery drain and no one has figured out a way to safely implement it without causing drain.

Related

BLN & Battery

Ok before anyone starts raging, I've already searched around the forum and seen some say BLN is a battery drain and others saying it isn't. I'm curious as to what peoples experience has been with it on all the new 2.2.1 ROMs.
Drains probably 2% more total during the day for me
xriderx66 said:
Drains probably 2% more total during the day for me
Click to expand...
Click to collapse
What app are you using to control it?
The app that it comes with...
Bln something
I think its in the market too
regP said:
Ok before anyone starts raging, I've already searched around the forum and seen some say BLN is a battery drain and others saying it isn't. I'm curious as to what peoples experience has been with it on all the new 2.2.1 ROMs.
Click to expand...
Click to collapse
BLN Control....Theres A Free And Paid Version
It Dnt Drain Battery That Much..just COntrol it by using the app
MY sugestion USE noLED app it shuts off your soft buttons so they wont light up and noLED is way cooler PP
from what i've read from neldar himself (the guy the introduced the bln code, and created the bln settings app, and using the pro version you can control blinking, schedule when the bln on is implemented and when it isn't, etc), he's seen it only uses 0.85% of your total battery.
xriderx66 said:
Drains probably 2% more total during the day for me
Click to expand...
Click to collapse
How many seconds on/off do you have it set at? Also do you have it turn off after 5 minutes? or?
Ive used both bln and no led is better in my opinion
Sent from my SGH-T959 using XDA Premium App
movieaddict said:
Ive used both bln and no led is better in my opinion
Sent from my SGH-T959 using XDA Premium App
Click to expand...
Click to collapse
Care to share the reasons why? Thanks...
you guys are so paranoid about 1-3% battery life.
I'm using CM7, and i have bln set to always on (as flashing bln eats up more battery, plus the normal Cm7 stuf doesn't support blinking bln). I get ~45 hours of battery life. For those that think bln eats up battery, it's only placebo effect.
geoffcorey said:
you guys are so paranoid about 1-3% battery life.
I'm using CM7, and i have bln set to always on (as flashing bln eats up more battery, plus the normal Cm7 stuf doesn't support blinking bln). I get ~45 hours of battery life. For those that think bln eats up battery, it's only placebo effect.
Click to expand...
Click to collapse
Did you every try it with blinking? How big of a difference on batt life?
spiicytuna said:
Did you every try it with blinking? How big of a difference on batt life?
Click to expand...
Click to collapse
CM7 hasn't had any added in blinking support since about April. There is one kernel that doesn't use LEDNotify, but rather the actual bln code. But I will have my led lights on for hours at a time, sometimes the entire night, and I still get nice battery life.
As for Samsung roms, I compared both blinking and non blinking, and tlfor me the difference was negligiable (sp?).
But seriously, stop worry about these stupid 1-2% and enjoy your phone.
Sent from my SGH-T959 using XDA App
^ the question was posed before people KNEW how much of a % it took, lets not be harsh. Not sure how you are getting near 2 days of battery life. I assume you mean if you just leave it sitting... not a very good indicator for real life. I think 10 hours is more like it.
I've been using BLN control pro with bi-winning for a month or two now and have noticed no difference in battery beyond normal variance.
I prefer BLN to noLED because I was never able to get noLED to work consistently.

Is there any way to have bln light up individual capacitive buttons?

Cause this would save a lot of battery.
from my Vibrant running Bionix-v 1.3.1 and my Unbridled Carnage theme.
thachosenone said:
Cause this would save a lot of battery.
from my Vibrant running Bionix-v 1.3.1 and my Unbridled Carnage theme.
Click to expand...
Click to collapse
What makes you think that the buttons lighting up makes you lose more battery?
Cause I would imagine that it still uses battery....where else could it drawer power from?
xriderx66 said:
What makes you think that the buttons lighting up makes you lose more battery?
Click to expand...
Click to collapse
from my Vibrant running Bionix-v 1.3.1 and my Unbridled Carnage theme.
thachosenone said:
Cause I would imagine that it still uses battery....where else could it drawer power from?
from my Vibrant running Bionix-v 1.3.1 and my Unbridled Carnage theme.
Click to expand...
Click to collapse
the amount of battery it uses would probably be REALLY low and not high enough to notice.
When you turn your screen on to check the time for 2 secs that uses more battery than if you leave those lights alone and on for a hour or something.(inaccurate)
Dont worry about it, and it DOES turn off for you right?
mine blinks a few times, and turns off and blinks later.
xriderx66 said:
the amount of battery it uses would probably be REALLY low and not high enough to notice.
When you turn your screen on to check the time for 2 secs that uses more battery than if you leave those lights alone and on for a hour or something.(inaccurate)
Dont worry about it, and it DOES turn off for you right?
mine blinks a few times, and turns off and blinks later.
Click to expand...
Click to collapse
What app are you using? Blinky our bln control?
from my Vibrant running Bionix-v 1.3.1 and my Unbridled Carnage theme.
thachosenone said:
What app are you using? Blinky our bln control?
from my Vibrant running Bionix-v 1.3.1 and my Unbridled Carnage theme.
Click to expand...
Click to collapse
None, im on MIUI, and it does it AUTO with no app.
but i USED to use BLN.
xriderx66 said:
but i USED to use BLN.
Click to expand...
Click to collapse
With what app?
from my Vibrant running Bionix-v 1.3.1 and my Unbridled Carnage theme.
thachosenone said:
With what app?
from my Vibrant running Bionix-v 1.3.1 and my Unbridled Carnage theme.
Click to expand...
Click to collapse
It was with one of the OverStock kernels.
not any apps just BLN app.
I'm thinking of going back to categorically worthless kernel from stock kb5+ voodoo.
What takes more battery, you think? Blinking or staying on for a notification?
from my Vibrant running Bionix-v 1.3.1 and my Unbridled Carnage theme.
thachosenone said:
takes more battery, you think? Blinking or staying on for a notification?
.
Click to expand...
Click to collapse
Looking at the bln control appointment, it states that blinking will take considerably more power than just keeping the lights turned on.
Sent from my SGH-T959 using XDA App
geoffcorey said:
Looking at the bln control appointment, it states that blinking will take considerably more power than just keeping the lights turned on.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
More than likely because a program has to run that tells the LEDs when to turn on and off. LEDs don't use much power at all, so the power saved is moot because of the program that would need to be run in the background using CPU cycles.
That said bln uses a relatively insignificant amount of battery life, even with blinking, i maybe get 10-20 minutes less battery life over the course of a day as a result of bln. imo worth it for the added functionality.
also i dont think its possible to light up individual buttons, if im not mistaken the capacitive buttons are lit by a single led, which is why on some phones you notice that the menu and search keys are slightly dimmer than the home and back keys
shreddintyres said:
That said bln uses a relatively insignificant amount of battery life, even with blinking, i maybe get 10-20 minutes less battery life over the course of a day as a result of bln. imo worth it for the added functionality.
also i dont think its possible to light up individual buttons, if im not mistaken the capacitive buttons are lit by a single led, which is why on some phones you notice that the menu and search keys are slightly dimmer than the home and back keys
Click to expand...
Click to collapse
have you noticed that when you press a capacitive button, it turns off to signify that you pressed it. Which leads me to believe that it is possible. I would imagine much harder to program though.
from my Vibrant running Bionix-v 1.3.1 and my Unbridled Carnage theme.
Bln uses alot of battery when the keys are lit. 5% per hour I'd estimate...
Sdobron said:
Bln uses alot of battery when the keys are lit. 5% per hour I'd estimate...
Click to expand...
Click to collapse
You sir, know not what you're talking about. Neldar, the person who originally got bln working, has stated that if the leds aare left on constantly, that it would only consume up to 2% of your total battery over a full charge.
But to flat out say "bln consumes a lot of power" as a statement of fact, then say it uses 5% per hour I estimate" as pure guess work is just rediculous. What have you tested to arrive at your conclusion? What are your variables, and what is your control?
Sent from my SGH-T959 using XDA App
I was wondering the same thing. But not about battery life, because lets face it, we have power hungry android devices. But for different notifications. Menu key for SMS, home key for Gmail, back key for gtalk, search key for missed call, all for voice mail. Just my .2.
Sent from my SGH-T959 using XDA Premium App
the reason you can't do the individual buttons is because it would require a lot of reverse engineering the button binaries. And the reward is not nearly worth the work involved in it.
geoffcorey said:
the reason you can't do the individual buttons is because it would require a lot of reverse engineering the button binaries. And the reward is not nearly worth the work involved in it.
Click to expand...
Click to collapse
Makes perfect sense. I just like the fact that we can have bln in lieu of an actual notification led.
And I think devs and themers pretty much have the same attitude as far as the whole work vs. payoff thing is concerned.
from my Vibrant running Bionix-v 1.3.1 and my Unbridled Carnage theme.
geoffcorey said:
You sir, know not what you're talking about. Neldar, the person who originally got bln working, has stated that if the leds aare left on constantly, that it would only consume up to 2% of your total battery over a full charge.
But to flat out say "bln consumes a lot of power" as a statement of fact, then say it uses 5% per hour I estimate" as pure guess work is just rediculous. What have you tested to arrive at your conclusion? What are your variables, and what is your control?
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
Test it yourself. It's not guess work, I've tested it multiple times by sending a text to myself when I go to bed to leave the bln lit while I sleep. 4 hours was approximately 20% drain...with bln off 4 hours approximately 7% drain.
Edit: no wifi, data off also. Phone set exactly the same.
Sdobron said:
Test it yourself. It's not guess work, I've tested it multiple times by sending a text to myself when I go to bed to leave the bln lit while I sleep. 4 hours was approximately 20% drain...with bln off 4 hours approximately 7% drain.
Edit: no wifi, data off also. Phone set exactly the same.
Click to expand...
Click to collapse
you're arguing with the guy that figured out howto even get bln working... (neldar)

[Q] Notification LED Blinking rate

Hi guys,
In my opinion, the notification LED blinks way too slow in Atrix... I used "Blink" application from the market when i had Froyo to change that but it doesn't work in Gingerbread
Does anyone know how to change that notification LED blink rate for received SMSs? Any working applications or configurations?
Thanks in advance
Try Lightflow
Sent from my Motorola Atrix
Let the lightflow.
I voided my warranty.
DrunkFuX666 said:
Try Lightflow
Sent from my Motorola Atrix
Click to expand...
Click to collapse
Thanks for the suggestion, but it didn't work...
The flashing speed for lightflow "fast" is the same as Gingerbread stock notification, i need it much faster since i always leave my phone in silence mode when i am at work...
Any other options?
luizffgarcia said:
Thanks for the suggestion, but it didn't work...
The flashing speed for lightflow "fast" is the same as Gingerbread stock notification, i need it much faster since i always leave my phone in silence mode when i am at work...
Any other options?
Click to expand...
Click to collapse
Why not leave it to always on or something ... tho I feel that's pretty fast... doubt you will find faster...
Sent from my Motorola Atrix
DrunkFuX666 said:
Why not leave it to always on or something ... tho I feel that's pretty fast... doubt you will find faster...
Sent from my Motorola Atrix
Click to expand...
Click to collapse
I fear always on may burn the LED...
I had a much faster rate with "Blink", but it doesn't work with Gingerbread... It was about two times faster!
What about Handcent? I know you can adjust the blink rate on notifications as a whole or per contact...
I was looking for a way to control LED colors. Thanks for the tip in LightFlow. Just set it up and it works great! Now when I see green I know what the notification is versus before it could be anything.
Atrix_E said:
I was looking for a way to control LED colors. Thanks for the tip in LightFlow. Just set it up and it works great! Now when I see green I know what the notification is versus before it could be anything.
Click to expand...
Click to collapse
It works quite well yes... but you may want to watch out for battery drain since it tends to cause partial wakelocks... just observe for a few days... if your still happy with battery no need to worry... if its draining... you know what's causing it...
Sent from my Motorola Atrix
luizffgarcia said:
I fear always on may burn the LED...
I had a much faster rate with "Blink", but it doesn't work with Gingerbread... It was about two times faster!
Click to expand...
Click to collapse
Never used blink so wouldn't know... and well... I highly doubt the led will burn out... they tend to have very long lives... if it burns I would prob say just really bad luck... its not a bulb afterall, its a LED... Not to mention the BLN app which is used on the galaxy s and galaxy s2 for the backlight leds of the softkeys to come on for notifications is based off that due to lack of any actual notification LED...
But its your call... I would just say look around for if keeping those leds on constantly will cause any harm... if not... go for it...
Sent from my Motorola Atrix
DrunkFuX666 said:
It works quite well yes... but you may want to watch out for battery drain since it tends to cause partial wakelocks... just observe for a few days... if your still happy with battery no need to worry... if its draining... you know what's causing it...
Sent from my Motorola Atrix
Click to expand...
Click to collapse
Good looking out. Will I see LightFlow in my battery stats as the culprit? Im stock OTA GB still with a out 22-26 hours between charges. Ill report back after a couple days. I setup a bunch of notifications.
DrunkFuX666 said:
Never used blink so wouldn't know... and well... I highly doubt the led will burn out... they tend to have very long lives... if it burns I would prob say just really bad luck... its not a bulb afterall, its a LED... Not to mention the BLN app which is used on the galaxy s and galaxy s2 for the backlight leds of the softkeys to come on for notifications is based off that due to lack of any actual notification LED...
But its your call... I would just say look around for if keeping those leds on constantly will cause any harm... if not... go for it...
Sent from my Motorola Atrix
Click to expand...
Click to collapse
I will do that!
But if someone knows other ways, just please let me know
Thanks
Atrix_E said:
Good looking out. Will I see LightFlow in my battery stats as the culprit? Im stock OTA GB still with a out 22-26 hours between charges. Ill report back after a couple days. I setup a bunch of notifications.
Click to expand...
Click to collapse
It didn't show up on battery stats but did show up on Better Battery Stats as it doesn't cause a direct drain, but keeps the phone awake which leads to the system draining in general...
Sent from my Motorola Atrix
DrunkFuX666 said:
It didn't show up on battery stats but did show up on Better Battery Stats as it doesn't cause a direct drain, but keeps the phone awake which leads to the system draining in general...
Sent from my Motorola Atrix
Click to expand...
Click to collapse
Well I didn't need to wait a couple days to report. I can already tell LightFlow is having an adverse affect on my battery life. I hate when things are too good to be true.
EDIT: However I did wakeup to a bunch of pretty LED colors this morning lol..
Atrix_E said:
Well I didn't need to wait a couple days to report. I can already tell LightFlow is having an adverse affect on my battery life. I hate when things are too good to be true.
EDIT: However I did wakeup to a bunch of pretty LED colors this morning lol..
Click to expand...
Click to collapse
Haha... I agree I loved the app... but its simply a tradeoff... unfortunately battery life is more important for me...
Sent from my Motorola Atrix

[Q] What are you using for notifications due to no LED light?

After using a BlackBerry for years, I am really bothered by not having a LED notification light.
I have seen posts about noled and bln, but would like some opinions
I would like a recommendation for an non-rooted phone. I am also concerned about battery life.
Thanks in advance.
we could do what IOS5 does, they use the LED flash to let people know a notification is pending..
lol, could you imagine.. dark room, and you get a txt.. then all of a sudden your camera flash is lighting up the room,
026TB4U said:
After using a BlackBerry for years, I am really bothered by not having a LED notification light.
I have seen posts about noled and bln, but would like some opinions
I would like a recommendation for an non-rooted phone. I am also concerned about battery life.
Thanks in advance.
Click to expand...
Click to collapse
None if you care about battery.
NoLED turns on the screen and I believe also inhibits deep sleep - it'll eat battery like crazy.
BLN isn't implemented for our phones yet - I tried porting a patch for the I9100 kernels but I screwed something up, if the notification light is on, the code holds a wakelock that prevents deep sleep. As a result, that BLN implementation ate battery too. I'm hoping to eventually get it working sanely, but it's much lower on my priorities list now.
Entropy512 said:
None if you care about battery.
NoLED turns on the screen and I believe also inhibits deep sleep - it'll eat battery like crazy.
BLN isn't implemented for our phones yet - I tried porting a patch for the I9100 kernels but I screwed something up, if the notification light is on, the code holds a wakelock that prevents deep sleep. As a result, that BLN implementation ate battery too. I'm hoping to eventually get it working sanely, but it's much lower on my priorities list now.
Click to expand...
Click to collapse
I can say, that for me, this is a big deal. I almost switched to another carrier's S2 because of it. After reading the reviews, I'm glad I didn't.
This is a great phone. Battery was a concern, but after a few battery cycles and turning wifi off, it now kicks ass for such a powerful phone.
The LEd notification light would have made it the perfect phone...lol
026TB4U said:
I can say, that for me, this is a big deal. I almost switched to another carrier's S2 because of it. After reading the reviews, I'm glad I didn't.
This is a great phone. Battery was a concern, but after a few battery cycles and turning wifi off, it now kicks ass for such a powerful phone.
The LEd notification light would have made it the perfect phone...lol
Click to expand...
Click to collapse
Hopefully eventually we'll get BLN that's stable AND doesn't wakelock the phone - but I am thinking that right now the reason it's stable is because it isn't holding excessive wakelocks.
Entropy512 said:
None if you care about battery.
NoLED turns on the screen and I believe also inhibits deep sleep - it'll eat battery like crazy.
BLN isn't implemented for our phones yet - I tried porting a patch for the I9100 kernels but I screwed something up, if the notification light is on, the code holds a wakelock that prevents deep sleep. As a result, that BLN implementation ate battery too. I'm hoping to eventually get it working sanely, but it's much lower on my priorities list now.
Click to expand...
Click to collapse
Since noled turns the screen on, but bln doesn't, and they both inhibit deep sleep, wouldn't even this flawed BLN implementation be better than NoLed for those who really need some sort of notification light?
Its weird how this phone needs a custom kernel for BLN. The Thrill I returned had an app in the market that worked for BLN, all it needed was root. It was sweet too: you could choose different blinking combos for different notifications.
I can't complain though, this phone more than makes up for that in so many other ways. Its just a matter of time before we have it. Plus this phone has the built in option to keep those on with the screen. I was so excited when I saw that.
Sent from my SGS II
026TB4U said:
After using a BlackBerry for years, I am really bothered by not having a LED notification light.
I have seen posts about noled and bln, but would like some opinions
I would like a recommendation for an non-rooted phone. I am also concerned about battery life.
Thanks in advance.
Click to expand...
Click to collapse
As stated, there aren't really any options right now. I use an audible repeating alert (Easy Reminder). There are several of those apps in the market.
jsmith8858 said:
Since noled turns the screen on, but bln doesn't, and they both inhibit deep sleep, wouldn't even this flawed BLN implementation be better than NoLed for those who really need some sort of notification light?
Click to expand...
Click to collapse
Hmm... I'll consider it, user clue-factor and reading comprehension HAS been better than I expected based on my past experience with the Infuse. (I was expecting to have a bunch of overclock instability reports despite the giant red text, like a bunch of Infuse ROM devs had. But I haven't and as a result haven't had to yank OC from the kernel.
Maybe tomorrow... Too late for tonight's release, that's in testing.
Entropy512 said:
Hmm... I'll consider it, user clue-factor and reading comprehension HAS been better than I expected based on my past experience with the Infuse. (I was expecting to have a bunch of overclock instability reports despite the giant red text, like a bunch of Infuse ROM devs had. But I haven't and as a result haven't had to yank OC from the kernel.
Maybe tomorrow... Too late for tonight's release, that's in testing.
Click to expand...
Click to collapse
I totally agree. I can see you posting this with a huge battery-drain warning in large bold type and then seeing post after post after post of people complaining about battery issues.... tough call, but I'd say it's probably worth posting if it is not too much work for you to compile a version with it enabled. Easy for me to say, of course! Thank you again for all of your amazing hard work!
I'm using missed message flasher and I like it very match.
yossiw said:
I'm using missed message flasher and I like it very match.
Click to expand...
Click to collapse
Are you using it on the GSII?
Ive been using NoLED from the beginning and my battery life is outstanding. I guess results may vary.

[Q] Galaxy S2 ICS Screen-on Delay?

I have recently realized that my phone had a lag/delay when turning of the screen to the lockscreen. When I press the power button, it would take about 1-1.5 seconds after I press the button for the screen to actually turn on. This does not happen while charging for me, only on battery. After screen on, the UI runs fine. This also never happened to me when I was on Gingerbread roms.
I am currently running Serendipity 9.2 with Cherrypicker kernal because I like the UI, but I still get the screen-on lag
I have tried ShoStock 2, Foxhound, AOKP, Serendipity 9, Mystic and ShirShirRomICS
and comboed those with all of the different kernals: Siyah, Fluxxi, Cherrypicker and NEAK. All this to no avail
I was wondering if this is only happening to me, because it slightly annoys me that I need to wait, since it makes the phone feel like its not as speedy as it should be.
If somebody can help me solve this I will be SOO GRATEFUL!
Thank you so much!
I forget which thread but entropy said screen delay is about that long now. Its a Samsung thing that can't be worked around
Sent from my SGH-I777 using Tapatalk 2
awww, Hopefully entropy will find a way
Maybe its because its not based on the Official i777 one?
but was it just me or did GB roms not have the delay?
Takes mine an avg of .5 seconds. Sometimes it's almost instant, other times it's near 1 second, but the avg would be close to .5 - I wonder if that will change the longer I've got this phone?
Clay
Sent from my SGH-I777 using XDA
Mine turns on basically instantly
Sent from my SGH-I777 using Tapatalk 2
Nick281051 said:
Mine turns on basically instantly
Sent from my SGH-I777 using Tapatalk 2
Click to expand...
Click to collapse
What rom and kernal are you using?
george.z.he said:
What rom and kernal are you using?
Click to expand...
Click to collapse
Fluxii 6/2 and Task's aokp 6/3
Sent from my SGH-I777 using Tapatalk 2
george.z.he said:
awww, Hopefully entropy will find a way
Maybe its because its not based on the Official i777 one?
but was it just me or did GB roms not have the delay?
Click to expand...
Click to collapse
GB had about .5 sec delay. Ics is close to 1 sec
Sent from my SGH-I777 using Tapatalk 2
Mine used to do the same. After a new aokp build 36 Install the lag went away- maybe a coincidence?
Sent from my SGH-I777 using XDA
Try upping your lowest frequency step if you have your min set to 100/200mhz on your governor, change it to 500mhz and see if it stops happening. (Works for me, only happens on certain I/O schedulers and governors however.)
Sent from my SGH-I777 using xda premium
cepsbow said:
Try upping your lowest frequency step if you have your min set to 100/200mhz on your governor, change it to 500mhz and see if it stops happening. (Works for me, only happens on certain I/O schedulers and governors however.)
Sent from my SGH-I777 using xda premium
Click to expand...
Click to collapse
Which I/O scheduler and governed do u use?
Sent from my SGH-I777 using xda premium
On demand and noop were the most stable for me. However it varies by device, not all sgs2 are created equal. I would suggest trying a few and see which runs most stable for your phone as the kernels governors vary (I was experiencing this issue with siyah and Neak on various aokp builds (35-37). Conservative/noop & vr with Neak and powersaver & performance / cfq & vr for both on siyah)
Currently on stock aokp 6-3 with tasks kernel, he truly overhauled the kernel, works better than any alternate kernel I've run so far with no issues on any oc/uc/uv settings.
Sent from my SGH-I777 using xda premium
If I recall correctly from the discussion many months ago (I think it was in Entropy's DD kernel thread for GB) there is basically a .65 second delay from power button press to screen on when waking from deep sleep on the SGS2 - and this is a hardware limitation, not software.
When you are seeing quicker screen wakes it is because the device was not in deep sleep at the time of the press of the power button. In the case of waking from a non-deep-sleep condition, probably the lowest idle clock speed or current clock speed (set by whatever background process has the phone awake) will be the controlling factor in how fast the screen wakes up.
I could be completely wrong here...someone please correct me if so...
dandrumheller said:
If I recall correctly from the discussion many months ago (I think it was in Entropy's DD kernel thread for GB) there is basically a .65 second delay from power button press to screen on when waking from deep sleep on the SGS2 - and this is a hardware limitation, not software.
When you are seeing quicker screen wakes it is because the device was not in deep sleep at the time of the press of the power button. In the case of waking from a non-deep-sleep condition, probably the lowest idle clock speed or current clock speed (set by whatever background process has the phone awake) will be the controlling factor in how fast the screen wakes up.
I could be completely wrong here...someone please correct me if so...
Click to expand...
Click to collapse
Then is it possible to turn off deep sleep? And does it drain a lot of battery if it is not in deep sleep?
I realized when playing music or when the BLN notification is on it wakes instantly.
george.z.he said:
Then is it possible to turn off deep sleep? And does it drain a lot of battery if it is not in deep sleep?
I realized when playing music or when the BLN notification is on it wakes instantly.
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Yes it is possible to turn off deep sleep. There is an app in the market called "wakelocker" or something similar. You can find references to it in the very early ICS ROMs for the i777, as it was used to avoid the random screen-ons we were having. It can be set up to hold a permanent wakelock.
However, you should expect to drain between 5 and 10% battery per hour idle if you are wakelocked all the time. In other words, your battery life will completely tank if you do this. Most people around here do anything and everything they possibly can to prevent wakelocks, as this is the best way to improve device-idle battery life. As someone mentioned in the AOKP thread, screen on delay is a sign of good sleepiness (or something like that - I'm paraphrasing cause I don't want to bother to go look)... If I were you, I'd leave it be...
My SGS2 has a 5-6 seconds delay before waking up from deep sleep. I noticed that after I take the phone away from my ear after a call the screen takes very long to turn back on, as if the proximity sensor is sleeping away.
This is definitely not because of my last firmware update because it simply didn't happen after I installed it. It was just impressively fast. This new behavior started about 3-4 weeks ago, I can't figure out right now whether I installed something that could produce such behavior.
Build number: IML74K.XWLP7
Kernel version: 3.0.15-I9100XWLP7-CL340913 [email protected] #3 (rooted)
Baseband: I9100XXLPS
LE: I have the european version.
pcamlin said:
Mine used to do the same. After a new aokp build 36 Install the lag went away- maybe a coincidence?
Sent from my SGH-I777 using XDA
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Yeah,mine as well and have no idea if it's a coincidence,seems like an old radio will get back to work after some beats...
Yeah as said above, it is a hardware thing combined with the state of the processor. The reason some people's turn on very rapidly is because their processor is already doing something, aka not sleeping. You should have at minimum probably a half second to maximum 2 second delay from pressing the button to your screen coming on. Otherwise your battery would be terrible.
Sent from my new and improved SGH-I777 with AOKP!
dogfax said:
Yeah as said above, it is a hardware thing combined with the state of the processor. The reason some people's turn on very rapidly is because their processor is already doing something, aka not sleeping. You should have at minimum probably a half second to maximum 2 second delay from pressing the button to your screen coming on. Otherwise your battery would be terrible.
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How does HTC do it then? My wife's stock Inspire wakes literally instantly, and its idle battery drain is even better than my S2 running AOKP/Fluxi. This is proof to me that Samsung could be designing things a little better...
mattdm said:
How does HTC do it then? My wife's stock Inspire wakes literally instantly, and its idle battery drain is even better than my S2 running AOKP/Fluxi. This is proof to me that Samsung could be designing things a little better...
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I was just thinking the other day why did I get rid of my Inspire...
Oh yeah... cuz I have a thing for phones

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