Thinkpad W540: high power consumption (even when idle)
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I use Ubuntu 16.04 with kernel 4.4.0-53-generic and i3-wm on my
Thinkpad W540 20BH with i7-4600M and Nvidia Quadro K2100
I disabled the discrete GPU via acpi_call to save battery
However the notebook is still consuming around 24 watts on idle (peaks up to 30W):
$ upower --show-info /org/freedesktop/UPower/devices/battery_BAT0
native-path: BAT0
vendor: SANYO
model: 45N1779
[...]
battery
[...]
energy-full: 97.36 Wh
energy-full-design: 99.47 Wh
energy-rate: 24.508 W
[...]
Powertop does not show anything suspicious: screenshot
In Powertop's tab "Tunables" I see "Good" for every item listed.
cpu-info shows "powersave" for all cores.
I boot with:
GRUB_CMDLINE_LINUX_DEFAULT="acpi_osi=Linux nmi_watchdog=0 i915.i915_enable_rc6=1 i915.i915_enable_fbc=1"
Any ideas how I could save battery?
UPDATE 2018-03-02
Disabling some cores does not reduce the power consumption:
for i in 2..7; do echo 0 | sudo tee /sys/devices/system/cpu/cpu$i/online; done
According to powertop CPUs are in state "C7s-HSW" > 90% of the time.
Running the following command did not make any difference (suggested by Doug Smythies):
for p in /sys/devices/system/cpu/cpu*/cpuidle/state0/disable; do echo 1 | sudo tee $p; done
nvidia power-management battery thinkpad powertop
asked Feb 28 at 11:07
canochordo
62
add a comment |Â
up vote
1
down vote
favorite
I use Ubuntu 16.04 with kernel 4.4.0-53-generic and i3-wm on my
Thinkpad W540 20BH with i7-4600M and Nvidia Quadro K2100
I disabled the discrete GPU via acpi_call to save battery
However the notebook is still consuming around 24 watts on idle (peaks up to 30W):
$ upower --show-info /org/freedesktop/UPower/devices/battery_BAT0
native-path: BAT0
vendor: SANYO
model: 45N1779
[...]
battery
[...]
energy-full: 97.36 Wh
energy-full-design: 99.47 Wh
energy-rate: 24.508 W
[...]
Powertop does not show anything suspicious: screenshot
In Powertop's tab "Tunables" I see "Good" for every item listed.
cpu-info shows "powersave" for all cores.
I boot with:
GRUB_CMDLINE_LINUX_DEFAULT="acpi_osi=Linux nmi_watchdog=0 i915.i915_enable_rc6=1 i915.i915_enable_fbc=1"
Any ideas how I could save battery?
UPDATE 2018-03-02
Disabling some cores does not reduce the power consumption:
for i in 2..7; do echo 0 | sudo tee /sys/devices/system/cpu/cpu$i/online; done
According to powertop CPUs are in state "C7s-HSW" > 90% of the time.
Running the following command did not make any difference (suggested by Doug Smythies):
for p in /sys/devices/system/cpu/cpu*/cpuidle/state0/disable; do echo 1 | sudo tee $p; done
nvidia power-management battery thinkpad powertop
asked Feb 28 at 11:07
canochordo
62
Suggest you upgrade to the current kernel, 4.4.0-116-generic. Suggest use of turbostat for insight into processor power and GFX power. As a long shot test, try to disable idle state 0, (as su)for file in /sys/devices/system/cpu/cpu*/cpuidle/state0/disable; do echo "1" > $file; done
– Doug Smythies
Feb 28 at 15:21
@DougSmythies Thank you for your suggestions! Turbostat: Busy% < 0.5%, CPU%c1 around 0.5% (except from core0 around 3%), CPU%c3 < 0.3%, CPU%c6 < 0.1%, CPU%c7 > 95%, CoreTmp around 60°C, GFX%rc6 around 98%, GFXMHz 200, PkgWatt around 6.8W, CorWatt 0.1W, GFXWatt 0.01W; cpu*/cpuidle/state0/disable=1 did not make any difference
– canochordo
Mar 2 at 13:57
O.K. so your excessive power consumption does not appear to be from the processor or graphics (at least any graphics that turbostat knows about). Processor power is a little high, but my experience is with servers (where "idle" can be really quite idle) and not desktops (where "idle" really isn't at all).
– Doug Smythies
Mar 2 at 19:05
add a comment |Â
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I use Ubuntu 16.04 with kernel 4.4.0-53-generic and i3-wm on my
Thinkpad W540 20BH with i7-4600M and Nvidia Quadro K2100
I disabled the discrete GPU via acpi_call to save battery
However the notebook is still consuming around 24 watts on idle (peaks up to 30W):
$ upower --show-info /org/freedesktop/UPower/devices/battery_BAT0
native-path: BAT0
vendor: SANYO
model: 45N1779
[...]
battery
[...]
energy-full: 97.36 Wh
energy-full-design: 99.47 Wh
energy-rate: 24.508 W
[...]
Powertop does not show anything suspicious: screenshot
In Powertop's tab "Tunables" I see "Good" for every item listed.
cpu-info shows "powersave" for all cores.
I boot with:
GRUB_CMDLINE_LINUX_DEFAULT="acpi_osi=Linux nmi_watchdog=0 i915.i915_enable_rc6=1 i915.i915_enable_fbc=1"
Any ideas how I could save battery?
UPDATE 2018-03-02
Disabling some cores does not reduce the power consumption:
for i in 2..7; do echo 0 | sudo tee /sys/devices/system/cpu/cpu$i/online; done
According to powertop CPUs are in state "C7s-HSW" > 90% of the time.
Running the following command did not make any difference (suggested by Doug Smythies):
for p in /sys/devices/system/cpu/cpu*/cpuidle/state0/disable; do echo 1 | sudo tee $p; done
nvidia power-management battery thinkpad powertop
asked Feb 28 at 11:07
canochordo
62
I use Ubuntu 16.04 with kernel 4.4.0-53-generic and i3-wm on my
Thinkpad W540 20BH with i7-4600M and Nvidia Quadro K2100
I disabled the discrete GPU via acpi_call to save battery
However the notebook is still consuming around 24 watts on idle (peaks up to 30W):
$ upower --show-info /org/freedesktop/UPower/devices/battery_BAT0
native-path: BAT0
vendor: SANYO
model: 45N1779
[...]
battery
[...]
energy-full: 97.36 Wh
energy-full-design: 99.47 Wh
energy-rate: 24.508 W
[...]
Powertop does not show anything suspicious: screenshot
In Powertop's tab "Tunables" I see "Good" for every item listed.
cpu-info shows "powersave" for all cores.
I boot with:
GRUB_CMDLINE_LINUX_DEFAULT="acpi_osi=Linux nmi_watchdog=0 i915.i915_enable_rc6=1 i915.i915_enable_fbc=1"
Any ideas how I could save battery?
UPDATE 2018-03-02
Disabling some cores does not reduce the power consumption:
for i in 2..7; do echo 0 | sudo tee /sys/devices/system/cpu/cpu$i/online; done
According to powertop CPUs are in state "C7s-HSW" > 90% of the time.
Running the following command did not make any difference (suggested by Doug Smythies):
for p in /sys/devices/system/cpu/cpu*/cpuidle/state0/disable; do echo 1 | sudo tee $p; done
nvidia power-management battery thinkpad powertop
nvidia power-management battery thinkpad powertop
asked Feb 28 at 11:07
canochordo
62
asked Feb 28 at 11:07
canochordo
62
edited Mar 2 at 13:48
asked Feb 28 at 11:07
canochordo
62
asked Feb 28 at 11:07
canochordo
62
asked Feb 28 at 11:07
canochordo
62
62
Suggest you upgrade to the current kernel, 4.4.0-116-generic. Suggest use of turbostat for insight into processor power and GFX power. As a long shot test, try to disable idle state 0, (as su)for file in /sys/devices/system/cpu/cpu*/cpuidle/state0/disable; do echo "1" > $file; done
– Doug Smythies
Feb 28 at 15:21
@DougSmythies Thank you for your suggestions! Turbostat: Busy% < 0.5%, CPU%c1 around 0.5% (except from core0 around 3%), CPU%c3 < 0.3%, CPU%c6 < 0.1%, CPU%c7 > 95%, CoreTmp around 60°C, GFX%rc6 around 98%, GFXMHz 200, PkgWatt around 6.8W, CorWatt 0.1W, GFXWatt 0.01W; cpu*/cpuidle/state0/disable=1 did not make any difference
– canochordo
Mar 2 at 13:57
O.K. so your excessive power consumption does not appear to be from the processor or graphics (at least any graphics that turbostat knows about). Processor power is a little high, but my experience is with servers (where "idle" can be really quite idle) and not desktops (where "idle" really isn't at all).
– Doug Smythies
Mar 2 at 19:05
add a comment |Â
Suggest you upgrade to the current kernel, 4.4.0-116-generic. Suggest use of turbostat for insight into processor power and GFX power. As a long shot test, try to disable idle state 0, (as su)for file in /sys/devices/system/cpu/cpu*/cpuidle/state0/disable; do echo "1" > $file; done
– Doug Smythies
Feb 28 at 15:21
@DougSmythies Thank you for your suggestions! Turbostat: Busy% < 0.5%, CPU%c1 around 0.5% (except from core0 around 3%), CPU%c3 < 0.3%, CPU%c6 < 0.1%, CPU%c7 > 95%, CoreTmp around 60°C, GFX%rc6 around 98%, GFXMHz 200, PkgWatt around 6.8W, CorWatt 0.1W, GFXWatt 0.01W; cpu*/cpuidle/state0/disable=1 did not make any difference
– canochordo
Mar 2 at 13:57
O.K. so your excessive power consumption does not appear to be from the processor or graphics (at least any graphics that turbostat knows about). Processor power is a little high, but my experience is with servers (where "idle" can be really quite idle) and not desktops (where "idle" really isn't at all).
– Doug Smythies
Mar 2 at 19:05
Suggest you upgrade to the current kernel, 4.4.0-116-generic. Suggest use of turbostat for insight into processor power and GFX power. As a long shot test, try to disable idle state 0, (as su)
for file in /sys/devices/system/cpu/cpu*/cpuidle/state0/disable; do echo "1" > $file; done– Doug Smythies
Feb 28 at 15:21
Suggest you upgrade to the current kernel, 4.4.0-116-generic. Suggest use of turbostat for insight into processor power and GFX power. As a long shot test, try to disable idle state 0, (as su)
for file in /sys/devices/system/cpu/cpu*/cpuidle/state0/disable; do echo "1" > $file; done– Doug Smythies
Feb 28 at 15:21
@DougSmythies Thank you for your suggestions! Turbostat: Busy% < 0.5%, CPU%c1 around 0.5% (except from core0 around 3%), CPU%c3 < 0.3%, CPU%c6 < 0.1%, CPU%c7 > 95%, CoreTmp around 60°C, GFX%rc6 around 98%, GFXMHz 200, PkgWatt around 6.8W, CorWatt 0.1W, GFXWatt 0.01W; cpu*/cpuidle/state0/disable=1 did not make any difference
– canochordo
Mar 2 at 13:57
@DougSmythies Thank you for your suggestions! Turbostat: Busy% < 0.5%, CPU%c1 around 0.5% (except from core0 around 3%), CPU%c3 < 0.3%, CPU%c6 < 0.1%, CPU%c7 > 95%, CoreTmp around 60°C, GFX%rc6 around 98%, GFXMHz 200, PkgWatt around 6.8W, CorWatt 0.1W, GFXWatt 0.01W; cpu*/cpuidle/state0/disable=1 did not make any difference
– canochordo
Mar 2 at 13:57
O.K. so your excessive power consumption does not appear to be from the processor or graphics (at least any graphics that turbostat knows about). Processor power is a little high, but my experience is with servers (where "idle" can be really quite idle) and not desktops (where "idle" really isn't at all).
– Doug Smythies
Mar 2 at 19:05
O.K. so your excessive power consumption does not appear to be from the processor or graphics (at least any graphics that turbostat knows about). Processor power is a little high, but my experience is with servers (where "idle" can be really quite idle) and not desktops (where "idle" really isn't at all).
– Doug Smythies
Mar 2 at 19:05
add a comment |Â
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Suggest you upgrade to the current kernel, 4.4.0-116-generic. Suggest use of turbostat for insight into processor power and GFX power. As a long shot test, try to disable idle state 0, (as su)
for file in /sys/devices/system/cpu/cpu*/cpuidle/state0/disable; do echo "1" > $file; done– Doug Smythies
Feb 28 at 15:21
@DougSmythies Thank you for your suggestions! Turbostat: Busy% < 0.5%, CPU%c1 around 0.5% (except from core0 around 3%), CPU%c3 < 0.3%, CPU%c6 < 0.1%, CPU%c7 > 95%, CoreTmp around 60°C, GFX%rc6 around 98%, GFXMHz 200, PkgWatt around 6.8W, CorWatt 0.1W, GFXWatt 0.01W; cpu*/cpuidle/state0/disable=1 did not make any difference
– canochordo
Mar 2 at 13:57
O.K. so your excessive power consumption does not appear to be from the processor or graphics (at least any graphics that turbostat knows about). Processor power is a little high, but my experience is with servers (where "idle" can be really quite idle) and not desktops (where "idle" really isn't at all).
– Doug Smythies
Mar 2 at 19:05