Bug 800814
| Summary: | Powertop reports Megawatt battery drain | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Bert DeKnuydt <Bert.Deknuydt> | ||||
| Component: | powertop | Assignee: | Jaroslav Škarvada <jskarvad> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | low | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 16 | CC: | admin, jskarvad, metherid | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | powertop-1.98-5.fc16 | Doc Type: | Bug Fix | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2012-03-13 18:29:36 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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Please provide output of: # for d in /sys/class/power_supply/*; do echo $d; cat $d/uevent; done for both cases. Wow, that is fast response ... Here you go: Connected to mains: /sys/class/power_supply/AC POWER_SUPPLY_NAME=AC POWER_SUPPLY_ONLINE=1 /sys/class/power_supply/BAT0 POWER_SUPPLY_NAME=BAT0 POWER_SUPPLY_STATUS=Full POWER_SUPPLY_PRESENT=1 POWER_SUPPLY_TECHNOLOGY=Li-ion POWER_SUPPLY_CYCLE_COUNT=0 POWER_SUPPLY_VOLTAGE_MIN_DESIGN=11100000 POWER_SUPPLY_VOLTAGE_NOW=12523000 POWER_SUPPLY_CURRENT_NOW=1000 POWER_SUPPLY_CHARGE_FULL_DESIGN=7838000 POWER_SUPPLY_CHARGE_FULL=7476000 POWER_SUPPLY_CHARGE_NOW=7838000 POWER_SUPPLY_MODEL_NAME=DELL XV2VV16 POWER_SUPPLY_MANUFACTURER=SMP POWER_SUPPLY_SERIAL_NUMBER=3208 Disconnected from mains: POWER_SUPPLY_NAME=AC POWER_SUPPLY_ONLINE=0 /sys/class/power_supply/BAT0 POWER_SUPPLY_NAME=BAT0 POWER_SUPPLY_STATUS=Discharging POWER_SUPPLY_PRESENT=1 POWER_SUPPLY_TECHNOLOGY=Li-ion POWER_SUPPLY_CYCLE_COUNT=0 POWER_SUPPLY_VOLTAGE_MIN_DESIGN=11100000 POWER_SUPPLY_VOLTAGE_NOW=12423000 POWER_SUPPLY_CURRENT_NOW=1260000 POWER_SUPPLY_CHARGE_FULL_DESIGN=7838000 POWER_SUPPLY_CHARGE_FULL=7476000 POWER_SUPPLY_CHARGE_NOW=7240000 POWER_SUPPLY_MODEL_NAME=DELL XV2VV16 POWER_SUPPLY_MANUFACTURER=SMP POWER_SUPPLY_SERIAL_NUMBER=3208 Please could you check the following scratch build and let me know if it fixes your problem? http://koji.fedoraproject.org/koji/taskinfo?taskID=3863861
It reports now:
With mains power connected:
The battery reports a discharge rate of 12.6 mW
With the power adapter unplugged:
The battery reports a discharge rate of 13.5 W
So, the same numbers apart from a factor 1e6.
I guess the issue is solved. Thanks 1e6 :)
Thanks for info, I will push it. Created attachment 568338 [details]
Proposed fix
Proposed fix sent upstream.
powertop-1.98-5.fc16 has been submitted as an update for Fedora 16. https://admin.fedoraproject.org/updates/powertop-1.98-5.fc16 powertop-1.98-6.fc17 has been submitted as an update for Fedora 17. https://admin.fedoraproject.org/updates/powertop-1.98-6.fc17 Package powertop-1.98-6.fc17: * should fix your issue, * was pushed to the Fedora 17 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing powertop-1.98-6.fc17' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-3260/powertop-1.98-6.fc17 then log in and leave karma (feedback). Yes, update fixes this bug. All seems to be ok. powertop-1.98-6.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report. powertop-1.98-5.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report. |
Description of problem: Powertop reports absurd numbers for battery discharge rate Version-Release number of selected component (if applicable): powertop-1.98-4.fc16.x86_64 The battery reports a discharge rate of 12.6 kW How reproducible: Always Steps to Reproduce: 1. Start powertop 2. 3. Actual results: On a Dell Latitude E6520: (w/ Bios A08) With mains power connected: The battery reports a discharge rate of 12.6 kW With the power adapter unplugged: The battery reports a discharge rate of 13.6 MW Other data from powertop looks plausible. Expected results: Either correct numbers, or, when impossible, no numbers at all, but not something blatantly absurd. Additional info: