[Bug 482] phone still consumes energy when powered off

bugzilla-daemon at bugzilla.openmoko.org bugzilla-daemon at bugzilla.openmoko.org
Thu Apr 19 16:10:13 CEST 2007


laforge at openmoko.org changed:

           What    |Removed                     |Added
                 CC|                            |tim_lee at fic.com.tw
          Component|kernel                      |Audio
            Product|OpenMoko                    |Neo1973 Hardware
            Version|unspecified                 |GTA01Bv3

------- Additional Comments From laforge at openmoko.org  2007-04-19 16:10 -------
mh, thinking a bit about how our power-off works (sending shutdown command to
PMU), I could think the audio amplifier LM4857 could still be "alive":

This component is powered directly by the battery.  We might not power it down
completely before software issues power-off, resulting in some remaining power
draw by the amplifier.  Unfortunately there seems to be no series resistor
between VDD of the LM4857 and +VB.  Maybe the hardware team has an idea on how
to measure LM4857 power consumption?

------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.

More information about the buglog mailing list