Bug 44672 - power down USB bluetooth and PCI devices
Summary: power down USB bluetooth and PCI devices
Status: RESOLVED WONTFIX
Alias: None
Product: pm-utils
Classification: Unclassified
Component: General (show other bugs)
Version: unspecified
Hardware: Other All
: medium enhancement
Assignee: Richard Hughes
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-01-11 04:55 UTC by Martin Pitt
Modified: 2018-06-29 19:57 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Attachments
power.d script for autosuspending USB bluetooth devices (1.09 KB, application/octet-stream)
2012-01-11 04:55 UTC, Martin Pitt 		Details
power.d script for autosuspending safe subset of PCI devices (1.36 KB, application/octet-stream)
2012-01-11 04:57 UTC, Martin Pitt 		Details
View All

Description Martin Pitt 2012-01-11 04:55:59 UTC 
Created attachment 55424 [details]
power.d script for autosuspending USB bluetooth devices

From https://launchpad.net/bugs/911325:

Colin King spent some days doing extensive and accurate power benchmarking [1],
amongst others the effect of the low-power modes of various hardware.

Here are two scripts which handle USB bluetooth adapters and a subset of PCI devices which are safe to turn into low-power mode.

Typical savings: 0.38 W per machine with some machines seeing > 1-2W savings.

[1] http://zinc.canonical.com/~cking/power-benchmarking/
Comment 1 Martin Pitt 2012-01-11 04:57:01 UTC 
Created attachment 55425 [details]
power.d script for autosuspending safe subset of PCI devices
Comment 2 Adam Jackson 2018-06-29 19:57:15 UTC 
pm-utils hasn't been touched in eight years, none of this is likely to get addressed. Closing bugs and disabling the bz product.

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