[Lug-myk-talk] Hoher Stromverbrauch bei Suspend to Ram

Sebastian Preisner sebastian.preisner at gmail.com
Do Nov 30 18:02:46 UTC 2017


Nabend allerseits,

ich habe vor einigen Tagen meinem Laptop (Thinkpad T460s) etwas RAM
spendiert. 4GB sind fest verlötet, zusätzlich befindet sich ein slot für
einen SO-DIMM auf dem Mainboard, dieses war auch mit 4GB bestückt. Den
Riegel habe ich durch 16GB (Crucial CT16G4SFD8213 DDR4-2133 SO-DIMM)
ersetzt. Seit ich das Notebook habe befindet es sich bei nicht nutzung in
der Regel im Suspend to Ram modus, dieser verursacht normal einen so
geringen stromverbrauch das man davon in der Regel nichts merkt. Seit ich
jedoch den neuen RAM eingebaut habe ist der Stromverbrauch im Suspend to
RAM so hoch das das Notebook nichtmal eine Nacht ohne Strom auskommt. In
der Stunde verliert er im Suspend to RAM gut 10% an Akkuleistung.

== Auszug dmesg: ==

[44901.478118] wlp4s0: deauthenticating from 38:10:d5:b8:54:d8 by local
choice (Reason: 3=DEAUTH_LEAVING)
[44901.501143] wlp4s0: failed to remove key (1, ff:ff:ff:ff:ff:ff) from
hardware (-22)
[44901.501374] wlp4s0: failed to remove key (2, ff:ff:ff:ff:ff:ff) from
hardware (-22)
[44901.517814] IPv6: ADDRCONF(NETDEV_UP): wlp4s0: link is not ready
[44906.471317] PM: Syncing filesystems ... done.
[44906.529898] PM: Preparing system for sleep (mem)
[44906.531178] Freezing user space processes ... (elapsed 0.004 seconds)
done.
[44906.535287] OOM killer disabled.
[44906.535288] Freezing remaining freezable tasks ... (elapsed 0.001
seconds) done.
[44906.537195] PM: Suspending system (mem)
[44906.537263] Suspending console(s) (use no_console_suspend to debug)
[44906.684765] sd 1:0:0:0: [sda] Synchronizing SCSI cache
[44906.686047] sd 1:0:0:0: [sda] Stopping disk
[44907.628400] PM: suspend of devices complete after 1090.839 msecs
[44907.645684] PM: late suspend of devices complete after 17.277 msecs
[44907.695707] PM: noirq suspend of devices complete after 50.015 msecs
[44907.696400] ACPI: Preparing to enter system sleep state S3
[44907.935739] ACPI: EC: event blocked
[44907.935740] ACPI: EC: EC stopped
[44907.935741] PM: Saving platform NVS memory
[44907.935748] Disabling non-boot CPUs ...
[44907.963874] smpboot: CPU 1 is now offline
[44907.994662] smpboot: CPU 2 is now offline
[44908.020388] smpboot: CPU 3 is now offline
[44908.026764] ACPI: Low-level resume complete
[44908.027008] ACPI: EC: EC started
[44908.027010] PM: Restoring platform NVS memory
[44908.027844] Suspended for 236.193 seconds
[44908.028111] Enabling non-boot CPUs ...
[44908.028224] x86: Booting SMP configuration:
[44908.028228] smpboot: Booting Node 0 Processor 1 APIC 0x2
[44908.030901]  cache: parent cpu1 should not be sleeping
[44908.031655] CPU1 is up
[44908.031724] smpboot: Booting Node 0 Processor 2 APIC 0x1
[44908.034653]  cache: parent cpu2 should not be sleeping
[44908.035515] CPU2 is up
[44908.035610] smpboot: Booting Node 0 Processor 3 APIC 0x3
[44908.038245]  cache: parent cpu3 should not be sleeping
[44908.039528] CPU3 is up
[44908.057478] ACPI: Waking up from system sleep state S3
[44908.582831] PM: noirq resume of devices complete after 46.714 msecs
[44908.590973] PM: early resume of devices complete after 8.090 msecs
[44908.591824] ACPI: EC: event unblocked
[44908.592060] sd 1:0:0:0: [sda] Starting disk
[44908.656625] xhci_hcd 0000:00:14.0: port 7 resume PLC timeout
[44908.676650] xhci_hcd 0000:00:14.0: port 1 resume PLC timeout
[44908.904925] ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[44908.905551] ata2.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES)
succeeded
[44908.905556] ata2.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE
LOCK) filtered out
[44908.905663] ata2.00: ACPI cmd ef/10:09:00:00:00:a0 (SET FEATURES)
succeeded
[44908.905892] ata2.00: supports DRM functions and may not be fully
accessible
[44908.910174] ata2.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES)
succeeded
[44908.910179] ata2.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE
LOCK) filtered out
[44908.910226] ata2.00: ACPI cmd ef/10:09:00:00:00:a0 (SET FEATURES)
succeeded
[44908.910449] ata2.00: supports DRM functions and may not be fully
accessible
[44908.912371] ata2.00: configured for UDMA/133
[44908.962871] usb 1-8: reset high-speed USB device number 4 using xhci_hcd
[44909.453627] psmouse serio1: synaptics: queried max coordinates: x
[..5676], y [..4762]
[44909.489386] psmouse serio1: synaptics: queried min coordinates: x
[1266..], y [1094..]
[44910.216792] [drm] RC6 on
[44911.461601] PM: resume of devices complete after 2870.568 msecs
[44911.462691] PM: Finishing wakeup.
[44911.462693] OOM killer enabled.
[44911.462694] Restarting tasks ...
[44911.462816] usb 1-2: USB disconnect, device number 8
[44911.462940] cdc_ether 1-2:2.0 enp0s20f0u2c2: unregister 'cdc_ether'
usb-0000:00:14.0-2, CDC Ethernet Device
[44911.479339] done.
[44911.483372] option1 ttyUSB0: GSM modem (1-port) converter now
disconnected from ttyUSB0
[44911.483394] option 1-2:2.2: device disconnected
[44911.483443] thermal thermal_zone3: failed to read out thermal zone (-5)
[44911.484265] option1 ttyUSB1: GSM modem (1-port) converter now
disconnected from ttyUSB1
[44911.484288] option 1-2:2.3: device disconnected
[44911.484665] option1 ttyUSB2: GSM modem (1-port) converter now
disconnected from ttyUSB2
[44911.484685] option 1-2:2.4: device disconnected
[44911.484880] option1 ttyUSB3: GSM modem (1-port) converter now
disconnected from ttyUSB3
[44911.484897] option 1-2:2.5: device disconnected
[44911.485149] option1 ttyUSB4: GSM modem (1-port) converter now
disconnected from ttyUSB4
[44911.485209] option 1-2:2.6: device disconnected
[44911.716660] e1000e: enp0s31f6 NIC Link is Down
[44911.720375] IPv6: ADDRCONF(NETDEV_UP): enp0s31f6: link is not ready
[44911.932918] IPv6: ADDRCONF(NETDEV_UP): enp0s31f6: link is not ready
[44911.934014] IPv6: ADDRCONF(NETDEV_UP): wlp4s0: link is not ready
[44912.181540] IPv6: ADDRCONF(NETDEV_UP): wlp4s0: link is not ready
[44912.262564] IPv6: ADDRCONF(NETDEV_UP): wlp4s0: link is not ready
[44912.486018] usb 1-2: new high-speed USB device number 9 using xhci_hcd
[44912.677636] cdc_ether 1-2:2.0 usb0: register 'cdc_ether' at
usb-0000:00:14.0-2, CDC Ethernet Device, 02:1e:10:1f:00:00
[44912.678097] option 1-2:2.2: GSM modem (1-port) converter detected
[44912.678391] usb 1-2: GSM modem (1-port) converter now attached to ttyUSB0
[44912.678648] option 1-2:2.3: GSM modem (1-port) converter detected
[44912.678918] usb 1-2: GSM modem (1-port) converter now attached to ttyUSB1
[44912.679158] option 1-2:2.4: GSM modem (1-port) converter detected
[44912.681539] usb 1-2: GSM modem (1-port) converter now attached to ttyUSB2
[44912.681925] option 1-2:2.5: GSM modem (1-port) converter detected
[44912.682210] usb 1-2: GSM modem (1-port) converter now attached to ttyUSB3
[44912.682460] option 1-2:2.6: GSM modem (1-port) converter detected
[44912.683943] usb 1-2: GSM modem (1-port) converter now attached to ttyUSB4
[44913.264919] cdc_ether 1-2:2.0 enp0s20f0u2c2: renamed from usb0
[44913.305899] IPv6: ADDRCONF(NETDEV_UP): enp0s20f0u2c2: link is not ready
[44913.306064] cdc_ether 1-2:2.0 enp0s20f0u2c2: kevent 12 may have been
dropped
[44913.306073] cdc_ether 1-2:2.0 enp0s20f0u2c2: kevent 12 may have been
dropped
[44913.308544] cdc_ether 1-2:2.0 enp0s20f0u2c2: kevent 12 may have been
dropped
[44913.308563] cdc_ether 1-2:2.0 enp0s20f0u2c2: kevent 12 may have been
dropped
[44913.308699] cdc_ether 1-2:2.0 enp0s20f0u2c2: kevent 11 may have been
dropped
[44913.330918] IPv6: ADDRCONF(NETDEV_UP): enp0s20f0u2c2: link is not ready
[44915.783503] wlp4s0: authenticate with 38:10:d5:b8:54:d8
[44915.794740] wlp4s0: send auth to 38:10:d5:b8:54:d8 (try 1/3)
[44915.803072] wlp4s0: authenticated
[44915.806155] wlp4s0: associate with 38:10:d5:b8:54:d8 (try 1/3)
[44915.817815] wlp4s0: RX AssocResp from 38:10:d5:b8:54:d8 (capab=0x431
status=0 aid=5)
[44915.820913] wlp4s0: associated
[44915.821178] IPv6: ADDRCONF(NETDEV_CHANGE): wlp4s0: link becomes ready


== cat /proc/acpi/wakeup ==

Device    S-state      Status   Sysfs node
LID      S4    *enabled   platform:PNP0C0D:00
SLPB      S3    *enabled   platform:PNP0C0E:00
IGBE      S4    *enabled   pci:0000:00:1f.6
EXP2      S4    *disabled
XHCI      S3    *enabled   pci:0000:00:14.0

Ich wäre echt dankbar über tipps was diesen hohen Stromverbrauch verursacht!

Grüße,
-- 
Sebastian Preisner

www.calyrium.org
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