[Desire General] th3:
Typically under /sys/power. For the complete data, we would need to know the TI and Snapdragon silicon read-only registers and how to access them via software.

Just FYI, the GPS was disabled here intentionally. So were cell, mobile data and WiFi. Mainly to minimize additional power drain.

My response at the 50% was the same disbelief :P

I've had such usage on 3 FroYo and 2 Eclair ROMs since March. I stick with official Sense ROMs and with official HTC ROM mods rather than those with some non-official hacks no matter what they claim (except root).

Battery life with 7-9hrs display on averages 16-17hrs in my typical usage as detailed earlier. This is just seconds before the last shutdown: http://bit.ly/bkQtm5

The worst I've seen is 25% of the full battery used by the screen in a test I posted above where the display was set to 100% on (never off), 100% brightness, running a predominately white browser page with small black text: http://bit.ly/92OYYy

- What exactly did you mean by "screen off" in your posts?

- How did you measure that?

- How did you stop the SoC from entering deep power saving mode when switching the display off?

My initial observations on your posts were that the ~100 mA drop you're reporting doesn't look like just the display going off current delta but of the whole SoC going into sleep mode. By default, display timeout causes the whole SoC to enter deep power saving state on the Desire.

- If you want to test the current requirement delta of just the display going on and off, use an app like Lock Delay and set the "enable lockscreen" field to something large, like 15mins. Then switch the display on/off and measure.

I can't give most setup/usage details here because they vary so often daily. However, the default settings always consist of:

*Stock HTC 2.2 ROM with root

*32.43.00.32U_5.09.00.20 radio

*The black-ish HTC background

*Autorotate off (except when watching multimedia)

*Display timeout 2mins, sleep after 15mins (with LockDelay)

*Brightness percentage manually set; indoors at 0-5% unless I'm viewing multimedia, where it is set to 18%. Outdoors, usually 25-30%, rarely more.

*Button backlight is on as long as the display

*No Facebook, Twitter etc, all removed

*No background data

*Location services are disabled except when required

*Mobile data always on is disabled

*Mobile data is off, not just APN toggled

*Manual time sync and weather

*Vibrate and LED notifications are on for most events

*33 homescreen widgets which sync every 5 mins incl. Pure Grid Calendar/Calendar/Messenger, Stocks, SeePU, FolderOrganizer (etc)

*GMail push for 4 accounts

*Missed Call, Call Confirm, App Launcher, Dialer One, HTC_IME kb, Call Meter NG, Bar Control, 3G Watchdog and Handcent are always running sevices in the background

I'm not sure whose percentage values are off; the phone manufacturers ROM or the OS developers. But this discrepancy is too large. I've never been close to 50% in the most extreme display usage possible. Either this discrepancy is real, or incorrect reporting by either of our ROMs, mine is using higher power for other hardware, yours is using higher power for the display or lower power for the rest of the hardware. I'm basically getting 1/5th your display percentage values since March. And I have excellent battery life since then.

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- Sent via my HTC Desire -