The sleep option in the power menu, is it any different than taping the power button to to turn of the screen? (or letting the screen time out)
Sleep mode on a computer is a true low power state, does Android support this? I know that when the screen is off on my N1 that the OS is still running, because it has to for proper function as a phone. Now the Gtab does not need to keep running when you shut off the screen, so a true sleep mode would be great.
I have selected the sleep mode before, and to me it did not seem to take any long to "wake up" when I tapped the power button.
I think that if it is a true sleep mode, then it would be nice if we had options like a standard computer. Set the screen time out and then a separate time to enter sleep mode automatically when there is no user activity. Have it function like that when you tap the power button as well, auto sleep mode after 5 minutes or so.
It's the same as tapping the power button. Try to charge the battery full, and put it to sleep mode overnight. Do the same thing for tapping the power button. I've done this and next morning the battery is still at 100 percent full.
The battery indicator is slow to refresh upon waking back up I noticed, I guess experimenting could show if there is any real difference. Still , I would like to know from a deeper perspective, If the source is ever released someone with more knowledge than me could examine the code.
I too was wondering about the affect of sleep vs auto timeout on battery life, so I put my TnT Lite 2.0.0 to test:
(1) with sleep: after 12 hours the battery meter drops by 17% (I actually did this twice and got basically the same result)
(2) with auto-time out: after 8 hours the battery meter drops by 12%
So it seems that sleep and auto-timeout have the same affect on battery.
I am surprised to hear in post #2 that there was no change in battery life; after all, the CPU still runs, albeit at a lower clock. I do notice that when the unit comes back on -- from sleep or auto-timeout -- it takes a few seconds before the battery meter updates itself. Maybe that's the reason why in post #2 it looks as if there's not change at all?
In any case, I can live with dropping 17% over 12 hours, esp since wifi reconnects within seconds. The more I use the g-tab the more I'm amazed how well-built it is as a piece of hardware, and how much it was weight down by the stock TnT... Thanks to roebeet/rothnic/bekriebel et al for making this useable (and fun!).
I do not think the CPU runs on a lower clock when the screen is off, that is why SetCPU has the option have a profile to lower the clock with the screen off.
If we can get SetCPU to work correctly, this thing would hardly use any battery if set to minimum clock speeds.
Related
I've checked my power settings and based on them my backlight should shut off after 1 minute of non-use.
When my phone is idle, or when I lock it the screen light only dims but it is never shutting off completely! This has caused a dramatic shortage of battery life.
Any suggestions?
simple search
http://forum.xda-developers.com/showthread.php?t=303778&highlight=backlight
I am looking for an application that can show a clock with the backlight off. I know it will be difficult to see, but the point is that the lamp doesn't consume power.
Actually, what I really want is that when the power button is activated to turn off the display, the application should start and show the clock with the display turned off, but otherwise enter a low-power mode.
I have no idea if this is possible with windows mobile 6, though.
I just noticed that the Nokia S95 maintains a clock (without backlight) on its display at all times (unless the phone is actively used). This doesn't seem to hurt its power consumption significantly which is why I hope a similar thing can be made for wm6.
Unfortunately, the device can't enter a low-power mode and still run an application.
You can try hooking the power button, setting it to launch your program and simultaneously kill the backlight; but note that your RAM will still be powered, along with any radios you have on (Bluetooh, WiFi), and any background processes will still be actively cycling through your processor.
I have a X7510 (WM6.1 original ROM) and for some reason which I have not set up in any settings, after 20 seconds the screen would dim to 25% if you leave it alone even though I have it set to always be at 100% brightness. It seems it automatically goes into a power saving mode if left alone for 20 seconds before powering off after 2 minutes, which is my configured setting.
ktemkin said:
Unfortunately, the device can't enter a low-power mode and still run an application.
You can try hooking the power button, setting it to launch your program and simultaneously kill the backlight; but note that your RAM will still be powered, along with any radios you have on (Bluetooh, WiFi), and any background processes will still be actively cycling through your processor.
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Click to collapse
Hmm the ram has to powered at all times, right? Otherwise how would the phone be able nearly instantly wake up and show its UI when the phone rings?
Anyway, it is too bad if the screen display anything with the rest in low-power state.
Intesting idea! That would be cool, I have seen it with smart phones but I've never seen it with HTC WM ppc's.
Hello all,
First of all, apologies if this is in the wrong forum.
I have an HTC EVO 4G on Sprint. I am looking for an app that will manage the backlight in a way more like Windows Mobile's own built-in management. Here's what I am looking for more specifically. When charging or plugged in, the backlight should be full brightness and the screen should never dim or turn off. When on battery, the backlight could be set to dim after xx minutes, or not dim. The device should then shut the screen off after xx minutes.
With Android's built-in settings, all I can come up with is the setting for the screen to never sleep when charging, which is oddly placed under Applications -> Development. The screen timeout setting applies to both battery and charging statuses.
Why? When the phone is plugged in, I like to be able to quickly glance at it for time or notifications. I don't like having to hit the power button to check these. When on battery, the phone is usually in my pocket so taking it out and pressing the power button are almost one motion. It saves battery as well.
Also, in the car, I always have the phone charging. I've noticed that some GPS and other programs will keep the backlight on, but others will not. I've seen some applications just allow the backlight to dim, so I have to keep touching the display to wake it up.
Does such an application exist? If not, doesn't anyone else want to see such an application made?
This is one of the little things that I miss about Windows Mobile 6.5.
Just over the past 2 days my GTab would go to sleep and refuse to wake up. Hitting the volume rocker did not wake it up and neither did hittng the power button. So I set the screen timer to never and set it in my Malata dock and had it sitting there running clock. After 2 or so hrs. (was not in the room) tab shut itself down.
Took about 30 min of hitting the volume and power button repeatedly before it decided to reboot.
Is this something to be concerned about? is my tab about to brick itself? It just happened all of sudden and I was caught of guard.
I have been running TnT lite 4.2 since purchase with no issue outside of market. Now all of sudden this.
Should I roll the rom back to stock and start over? or is there something I need to be looking at?
I know I can adjust the screen timer, but is there an actual "sleep" setting I can adjust?
machine73 said:
Just over the past 2 days my GTab would go to sleep and refuse to wake up. Hitting the volume rocker did not wake it up and neither did hittng the power button. So I set the screen timer to never and set it in my Malata dock and had it sitting there running clock. After 2 or so hrs. (was not in the room) tab shut itself down.
Took about 30 min of hitting the volume and power button repeatedly before it decided to reboot.
Is this something to be concerned about? is my tab about to brick itself? It just happened all of sudden and I was caught of guard.
I have been running TnT lite 4.2 since purchase with no issue outside of market. Now all of sudden this.
Should I roll the rom back to stock and start over? or is there something I need to be looking at?
I know I can adjust the screen timer, but is there an actual "sleep" setting I can adjust?
Click to expand...
Click to collapse
Hey, I don't know if this might help. I read this on the Nvidia dev. page a while back concerning the Tegra 250 & Tango board which is what I believe we have in the G Tablet (I could be wrong!)
"Due to a problem with the battery charge controller on some Tango units, you must charge the battery ever 2-3 weeks. If you find that the battery is plugged into the charger but remains at <7% charge, please try charging the battery for 6-12 hours. If the battery remains at <7%, please contact NVIDIA as the battery needs to be replaced.
In certain power saving configurations, touching the screen or "Android buttons" at the top of the device is not adequate to wake the device. To work around this, try inserting or ejecting the SD Card to wake the device. Failing that, you will need to reset or power cycle the Tango. Alternatively, please set the screen timeout to 30 minutes (Menu->Settings->Display->Screen Timeout)."
I have no idea if this will help, but hopefully it will.
Good Luck.
Thanx for that info. I did try pulled the SD card thinking that might force it to reboot, but it did nothing. The unit was is in fact shut down, not sleeping. It took alot of button pushing to get the unit power on. Now that it's up and running again, I have gone through all the sleep settings and it still happens. The longer I let it sleep, the more likely it shuts itself down.
Gonna call viewsonic today and see if I can get any help from their and.
Has anyone else notice that their M8 is noticeably less responsive when the battery gets low (usually under 15%)? I am aware that the Verizon model does not have the extreme power saving mode feature; however, I noticed something funny. When the battery is low and I go into developer options to turn on high performance mode, it lets me know that I cannot due to power saver being on (see screenshot). When the phone's battery is not low, I do not see this message and I can enable high performance mode. My guess is that the phone is entering some sort of power saving mode automatically when the battery gets low because I notice that it lasts quite long on low battery and is less snappy.
Fast start to finish here. But I'm running custom so.
Sent from my HTC One_M8 using Xparent BlueTapatalk 2
Can anyone else on stock replicate this issue or did I just get a defective M8? Thanks!
koolaid159357 said:
Can anyone else on stock replicate this issue or did I just get a defective M8? Thanks!
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Click to collapse
It honestly sounds like power saving mode is kicking in. Which does at 15% on stock if power saving mode is enabled ( not extreme power saving mode just the standard one)
If something weird is going on and it is not providing you with a notification that it is what's happening, next time it happens look at /sys/devices/system/cpu/cpu0/scaling_max_freq if it's at 2265600 then it's not in power saving mode, however if it's at 1190400 then power saver is on. Other signs of power saving mode would "normally" be
Display brightness reduced
Cpu reduced speeds
Vibration feedback turned off
*data connection put to sleep when screen off
Edit:
Turned my power saving mode on and I also can not turn on high performance mode. So I bet that is EXACTLY what's going on.
last edit,
if you have root you can launch the power saving settings ( even tho the option is not there under the power sub menu vzw left all the code in)
to do this from terminal emulator at # am start -a android.intent.action.MAIN -n com.htc.htcpowermanager/com.htc.htcpowermanager.powersaver.PowerSaverActivity
this will launch the settings for power saving mode, and from here you can see if it is set to on, if so just turn it back off.
sent from space
runandhide05 said:
It honestly sounds like power saving mode is kicking in. Which does at 15% on stock if power saving mode is enabled ( not extreme power saving mode just the standard one)
If something weird is going on and it is not providing you with a notification that it is what's happening, next time it happens look at /sys/devices/system/cpu/cpu0/scaling_max_freq if it's at 2265600 then it's not in power saving mode, however if it's at 1190400 then power saver is on. Other signs of power saving mode would "normally" be
Display brightness reduced
Cpu reduced speeds
Vibration feedback turned off
*data connection put to sleep when screen off
Edit:
Turned my power saving mode on and I also can not turn on high performance mode. So I bet that is EXACTLY what's going on.
last edit,
if you have root you can launch the power saving settings ( even tho the option is not there under the power sub menu vzw left all the code in)
to do this from terminal emulator at # am start -a android.intent.action.MAIN -n com.htc.htcpowermanager/com.htc.htcpowermanager.powersaver.PowerSaverActivity
this will launch the settings for power saving mode, and from here you can see if it is set to on, if so just turn it back off.
sent from space
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Click to collapse
Thanks for the reply, I agree with you on that one, I'm pretty sure power saving mode is being turned on somehow. I'm not rooted and on stock, so I don't have a toggle for power saver mode. Any idea how it could have turned itself on? Aside from rooting, is there anything short of a factory reset that I can do to get rid of it?
koolaid159357 said:
Thanks for the reply, I agree with you on that one, I'm pretty sure power saving mode is being turned on somehow. I'm not rooted and on stock, so I don't have a toggle for power saver mode. Any idea how it could have turned itself on? Aside from rooting, is there anything short of a factory reset that I can do to get rid of it?
Click to expand...
Click to collapse
Well I would first ask if any of the things I said happen when you phone goes below 15% such as
Display brightness reduced
Cpu reduced speeds
Vibration feedback turned off
*data connection put to sleep when screen off
Some of these you can check without root. Like the screen gets dim or the vibration turns off. If so then let me know.
Theoretically a factory reset would clear it. However you could try to clear data from the settings app.
sent from space
+1 on Power Save coming on.....I am on Viper so I see it is turned on at 15% with the quick settings, so I tap it to turn it off (which I know there isn't a stock equivalent)....but when it is on...the phone slows like a turd.