Public bug reported:
PCIe NVMe drives are very common in new laptops. The Zesty's kernels (including
latest 4.10 rc8 from CKT PPA) does not support APST (autonomous power state
transitions). A patch does exist :
http://lists.infradead.org/pipermail/linux-nvme/2017-February/008051.html
https://github.com/damige/linux-nvme
It seems that we cannot expect this before kernel 4.11.
Additionally my laptop CPU does never go under PC3 power saving state,
powertop says. I don't know if it's related.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: zesty
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https://bugs.launchpad.net/bugs/1664602
Title:
Using an NVMe drive causes huge power drain
Status in linux package in Ubuntu:
New
Bug description:
PCIe NVMe drives are very common in new laptops. The Zesty's kernels
(including latest 4.10 rc8 from CKT PPA) does not support APST (autonomous
power state transitions). A patch does exist :
http://lists.infradead.org/pipermail/linux-nvme/2017-February/008051.html
https://github.com/damige/linux-nvme
It seems that we cannot expect this before kernel 4.11.
Additionally my laptop CPU does never go under PC3 power saving state,
powertop says. I don't know if it's related.
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