This bug was fixed in the package linux-oem - 4.15.0-1030.35
---------------
linux-oem (4.15.0-1030.35) bionic; urgency=medium
* linux-oem: 4.15.0-1030.35 -proposed tracker (LP: #1806663)
* Add HMS CAN driver for Dell Edge Gateways (LP: #1807339)
- SAUCE: (no-up) add IXXAT USB-to-CAN driver
* Add support for 0cf3:535b QCA_ROME device (LP: #1807333)
- Bluetooth: btusb: Add support for 0cf3:535b QCA_ROME device
* Add support for Dell DW5821e WWAN/GPS module (LP: #1807342)
- qmi_wwan: add support for the Dell Wireless 5821e module
- qmi_wwan: fix interface number for DW5821e production firmware
- USB: option: add support for DW5821e
* Fix Terminus USB hub that may breaks connected USB devices after S3
(LP: #1806850)
- USB: Wait for extra delay time after USB_PORT_FEAT_RESET for quirky hub
* The line-out on the Dell Dock station can't work (LP: #1806532)
- ALSA: usb-audio: Allow to override the longname string
- ALSA: usb-audio: Give proper vendor/product name for Dell WD15 Dock
- ALSA: usb-audio: Add vendor and product name for Dell WD19 Dock
* Enable new Realtek card reader (LP: #1806335)
- USB: usb-storage: Add new IDs to ums-realtek
- SAUCE: (noup) USB: usb-storage: Make MMC support optional on ums-realtek
[ Ubuntu: 4.15.0-43.46 ]
* linux: 4.15.0-43.46 -proposed tracker (LP: #1806659)
* System randomly hangs during suspend when mei_wdt is loaded (LP: #1803942)
- SAUCE: base/dd: limit release function changes to vfio driver only
* Workaround CSS timeout on AMD SNPS 3.0 xHC (LP: #1806838)
- xhci: Allow more than 32 quirks
- xhci: workaround CSS timeout on AMD SNPS 3.0 xHC
* linux-buildinfo: pull out ABI information into its own package
(LP: #1806380)
- [Packaging] limit preparation to linux-libc-dev in headers
- [Packaging] commonise debhelper invocation
- [Packaging] ABI -- accumulate abi information at the end of the build
- [Packaging] buildinfo -- add basic build information
- [Packaging] buildinfo -- add firmware information to the flavour ABI
- [Packaging] buildinfo -- add compiler information to the flavour ABI
- [Packaging] buildinfo -- add buildinfo support to getabis
- [Config] buildinfo -- add retpoline version markers
* linux packages should own /usr/lib/linux/triggers (LP: #1770256)
- [Packaging] own /usr/lib/linux/triggers
* CVE-2018-12896
- posix-timers: Sanitize overrun handling
* CVE-2018-16276
- USB: yurex: fix out-of-bounds uaccess in read handler
* CVE-2018-10902
- ALSA: rawmidi: Change resized buffers atomically
* CVE-2018-18710
- cdrom: fix improper type cast, which can leat to information leak.
* CVE-2018-18690
- xfs: don't fail when converting shortform attr to long form during
ATTR_REPLACE
* CVE-2018-14734
- infiniband: fix a possible use-after-free bug
* CVE-2018-18445
- bpf: 32-bit RSH verification must truncate input before the ALU op
* Packaging resync (LP: #1786013)
- [Packaging] update helper scripts
-- Chia-Lin Kao (AceLan) <acelan....@canonical.com> Sat, 08 Dec 2018
11:02:54 +0800
** Changed in: linux-oem (Ubuntu)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-10902
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-12896
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-14734
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-16276
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-18445
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-18690
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-18710
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https://bugs.launchpad.net/bugs/1805775
Title:
PC SN720 NVMe WDC 256GB consumes more power in S2Idle than during long
idle
Status in HWE Next:
New
Status in linux-oem package in Ubuntu:
Fix Released
Bug description:
[Impact]
On new systems that facilitate s2idle, we observed the power consumption
raises higher than long idle does during s2idle with Western Digital PC SN720
NVMe SSD SDAPNTW-256G.
Short idle: 5.3
Long idle: 3.0
S2I: 5.07
[Fix]
Windows doesn't put nvme to D3 in modern standby, and uses its own APST
feature to do the power management. To leverage its APST feature during s2idle,
we can't disable nvme device while suspending, too.
So, here is what we did on the driver, 1. prevent nvme from entering D3, 2.
prevent nvme from being disabled when suspending.
[Test]
Verified on the WD NVMe, it fixes the power consumption issue with no
regression. And the power consumption decreases to 1.66W during s2idle.
[Regression Potential]
Low, the patches only applied to specific nvme module, and from our test, the
system is still stable.
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