WHAT IS PBD?
Some have reported issues with recent CM7 builds > 86 and premature battery death. This is being called PBD ("Premature Battery Death"). The main feature is a sudden loss of power at 30% or less without any warning.
Associated symptoms may include misreporting battery charge, where it suddenly jumps up (or down) 20% or more.
To get a hold on what might be the cause, let's collect info on whether people are having problems and with what configuration. Maybe we can figure this out together. For example, maybe everyone who's experiencing this problem is using the same combination of system/kernel, or maybe a certain configuration or procedure may make it go away.
PBD REPORT FORM
TEST CONFIGURATION:
BOOT DEVICE: eMMC
MLO: BN 1.2 built by fattire (MD5: a2c9a23efdbe05a40e0066500c5cfea1)
U-BOOT: BN 1.2 cyan build by fattire (MD5: c3db4062d1e67d50a382245471c1cef8)
KERNEL: uImage 2.6.32.9 from Nightly 86 (MD5: 9192c60a333c6ae32ab100c9eba16dca)
OVERCLOCKED?: to 925
GOVERNOR: Performance
SYSTEM: CM7 Nightly 86
PBD: NO
TEST COUNT: 2x- once with "untimely" u-boot. Which should be functionally the same. Both did not have BPD
TRIED REVERTING TO OLDER HC/CM7: NO
TRIED WIPING CACHE/DATA?: NO
DID IT WORK? N/A
PREVIOUSLY INSTALLED:
☑ Stock 1.0
☐ Stock 1.1
☐ Stock 1.2
☑ Nookie Froyo (any)
☑ Honeycomb (any)
☑ CM7 2.29 (any)
☑ CM7 2.32 beta 3
☑ CM7 nightlies > 84 (or whenever .32 appeared)
NOTES: I did have premature-battery death a week ago with the b3 system, the original 1.0 u-boot & MLO (built from BN source), and an overclocked kernel. Can't remember which one. Here is an image of 3% battery from Tues night (5/24/11).
THEORY
If you have a theory on what's going on, put it here.
Some have reported issues with recent CM7 builds > 86 and premature battery death. This is being called PBD ("Premature Battery Death"). The main feature is a sudden loss of power at 30% or less without any warning.
Associated symptoms may include misreporting battery charge, where it suddenly jumps up (or down) 20% or more.
To get a hold on what might be the cause, let's collect info on whether people are having problems and with what configuration. Maybe we can figure this out together. For example, maybe everyone who's experiencing this problem is using the same combination of system/kernel, or maybe a certain configuration or procedure may make it go away.
PBD REPORT FORM
TEST CONFIGURATION:
BOOT DEVICE: eMMC
MLO: BN 1.2 built by fattire (MD5: a2c9a23efdbe05a40e0066500c5cfea1)
U-BOOT: BN 1.2 cyan build by fattire (MD5: c3db4062d1e67d50a382245471c1cef8)
KERNEL: uImage 2.6.32.9 from Nightly 86 (MD5: 9192c60a333c6ae32ab100c9eba16dca)
OVERCLOCKED?: to 925
GOVERNOR: Performance
SYSTEM: CM7 Nightly 86
PBD: NO
TEST COUNT: 2x- once with "untimely" u-boot. Which should be functionally the same. Both did not have BPD
TRIED REVERTING TO OLDER HC/CM7: NO
TRIED WIPING CACHE/DATA?: NO
DID IT WORK? N/A
PREVIOUSLY INSTALLED:
☑ Stock 1.0
☐ Stock 1.1
☐ Stock 1.2
☑ Nookie Froyo (any)
☑ Honeycomb (any)
☑ CM7 2.29 (any)
☑ CM7 2.32 beta 3
☑ CM7 nightlies > 84 (or whenever .32 appeared)
NOTES: I did have premature-battery death a week ago with the b3 system, the original 1.0 u-boot & MLO (built from BN source), and an overclocked kernel. Can't remember which one. Here is an image of 3% battery from Tues night (5/24/11).
THEORY
If you have a theory on what's going on, put it here.
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