Hi, I'm not answering your question. But my suggestion is: don't bother
about your battery life. Because even if you get 10 hours now, it is going
to reduce slowly and reach 30 mins or 10 mins with in a few years. Then you
have to replace your battery with a new one.
I had a battery that drains to 0% with in 30 secs. I replaced that in 2012
with a 9 cell battery, when I started traveling with my laptop. The new
battery also drains to 0% within 30 secs now.
So I advice you to forget about battery life and move on to other important
things. :-)
On 10-Feb-2016 11:05 AM, "Dwijesh Gajadur" <dwije...@gmail.com> wrote:
> Hi everyone.
> I have a Dell Inspiron 5559 laptop which has a 40WHr, 4-cell battery. On
> Windows 7 I get a battery life of 6-7 hours. On Ubuntu I get a battery life
> of 5 hours after using PowerTop.
> However on Debian I get only 3 hours of battery life. I have done
> calibration several times and for several hours but I get only 3 hours of
> battery life.
>
> When I do *powertop --calibrate *the following lines appears:
>
> root@debian:/# powertop --auto-tune
> Loaded 137 prior measurements
> Cannot load from file /var/cache/powertop/saved_parameters.powertop
> File will be loaded after taking minimum number of measurement(s) with
> battery only
> RAPL device for cpu 0
> RAPL Using PowerCap Sysfs : Domain Mask f
> RAPL device for cpu 0
> RAPL Using PowerCap Sysfs : Domain Mask f
> RAPL device for cpu 0
> RAPL Using PowerCap Sysfs : Domain Mask f
> Devfreq not enabled
> Cannot load from file /var/cache/powertop/saved_parameters.powertop
> File will be loaded after taking minimum number of measurement(s) with
> battery only
> To show power estimates do 124 measurement(s) connected to battery only
> unknown op '{'
> Leaving PowerTOP
>
> root@debian:/# powertop --calibrate
> Loaded 87 prior measurements
> Cannot load from file /var/cache/powertop/saved_parameters.powertop
> File will be loaded after taking minimum number of measurement(s) with
> battery only
> RAPL device for cpu 0
> RAPL Using PowerCap Sysfs : Domain Mask f
> RAPL device for cpu 0
> RAPL Using PowerCap Sysfs : Domain Mask f
> RAPL device for cpu 0
> RAPL Using PowerCap Sysfs : Domain Mask f
> Devfreq not enabled
> Cannot load from file /var/cache/powertoproot@debian:/# powertop
> --auto-tune
> Loaded 137 prior measurements
> Cannot load from file /var/cache/powertop/saved_parameters.powertop
> File will be loaded after taking minimum number of measurement(s) with
> battery only
> RAPL device for cpu 0
> RAPL Using PowerCap Sysfs : Domain Mask f
> RAPL device for cpu 0
> RAPL Using PowerCap Sysfs : Domain Mask f
> RAPL device for cpu 0
> RAPL Using PowerCap Sysfs : Domain Mask f
> Devfreq not enabled
> Cannot load from file /var/cache/powertop/saved_parameters.powertop
> File will be loaded after taking minimum number of measurement(s) with
> battery only
> To show power estimates do 124 measurement(s) connected to battery only
> unknown op '{'
> Leaving PowerTOP
>
> root@debian:/# powertop --calibrate
> Loaded 87 prior measurements
> Cannot load from file /var/cache/powertop/saved_parameters.powertop
> File will be loaded after taking minimum number of measurement(s) with
> battery only
> RAPL device for cpu 0
> RAPL Using PowerCap Sysfs : Domain Mask f
> RAPL device for cpu 0
> RAPL Using PowerCap Sysfs : Domain Mask f
> RAPL device for cpu 0
> RAPL Using PowerCap Sysfs : Domain Mask f
> Devfreq not enabled
> Cannot load from file /var/cache/powertop/saved_parameters.powertop
> File will be loaded after taking minimum number of measurement(s) with
> battery only
> Starting PowerTOP power estimate calibration
> Calibrating idle
> System is not available
> unknown op '{'
> To show power estimates do 174 measurement(s) connected to battery only
> System is not available
> Calibrating: disk usage
> Calibrating backlight
> .... device /sys/class/backlight/intel_backlight/brightness
> Calibrating idle
> System is not available
> System is not available
> Calibrating: CPU usage on 1 threads
> Calibrating: CPU usage on 4 threads
> Calibrating: CPU wakeup power consumption
> Calibrating: CPU wakeup power consumption
> Calibrating: CPU wakeup power consumption
> Calibrating USB devices
> .... device /sys/bus/usb/devices/1-5/power/control
> .... device /sys/bus/usb/devices/1-6/power/control
> .... device /sys/bus/usb/devices/1-8/power/control
> .... device /sys/bus/usb/devices/usb1/power/control
> .... device /sys/bus/usb/devices/usb2/power/control
> Calibrating radio devices
> .... device /sys/class/rfkill/rfkill0/soft
> .... device /sys/class/rfkill/rfkill1/soft
> .... device /sys/class/rfkill/rfkill0/soft
> .... device /sys/class/rfkill/rfkill1/soft
> Finishing PowerTOP power estimate calibration
> Parameters after calibration:
>
>
> Parameter state *Cannot load from file
> /var/cache/powertop/saved_parameters.powertop *and
> ----------------------------------
> Value Name
> 1.17 alsa-codec-power (14)
> 1.02 backlight (4)
> 2.08 backlight-boost-100 (8)
> 0.75 backlight-boost-40 (6)
> 0.00 backlight-boost-80 (7)
> 1.97 backlight-power (5)
> 9.66 base power (83)
> 5.81 cpu-consumption (3)
> 24.29 cpu-wakeups (2)
> 0.00 disk-operations (85)
> 0.00 disk-operations-hard (84)
> 0.00 enp3s0-link*Cannot load from file
> /var/cache/powertop/saved_parameters.powertop *and -100 (20)
> 0.00 enp3s0-link-1000 (21)
> 0.00 enp3s0-link-high (22)
> 0.00 enp3s0-packets (23)
> 0.00 enp3s0-powerunsave (19)
> 5.58 enp3s0-up (18)
> 17.40 gpu-operations (17)
> 0.00 radio:hci0 (16)
> 0.00 radio:phy0 (15)
> 0.00 runtime-0000:00:00.0 (30)
> 0.00 runtime-0000:00:02.0 (31)
> 0.00 runtime-0000:00:14.0 (32)
> 0.00 runtime-0000:00:14.2 (33)
> 0.00 runtime-0000:00:15.0 (34)
> 0.00 runtime-0000:00:15.1 (35)
> 0.00 runtime-0000:00:16.0 (36)
> 0.00 runtime-0000:00:17.0 (37)
> 0.00 runtime-0000:00:1c.0 (38)
> 0.00 runtime-0000:00:1c.4 (39)
> 0.00 runtime-0000:00:1c.5 (40)
> 0.00 runtime-0000:00:1f.0 (41)
> 0.00 runtime-0000:00:1f.2 (42)
> 0.00 runtime-0000:00:1f.3 (43)
> 0.00 runtime-0000:00:1f.4 (44)
> 0.00 runtime-0000:01:00.0 (45)
> 0.00 runtime-0000:02:00.0 (46)
> 0.00 runtime-0000:03:00.0 (47)
> 0.00 runtime-ACPI0003:00 (77)
> 0.00 runtime-ACPI000C:00 (78)
> 0.00 runtime-DELLABCE:00 (72)
> 0.00 runtime-INT0800:00 (68)
> 0.00 runtime-INT33A1:00 (49)
> 0.00 runtime-INT344B:00 (48)
> 0.00 runtime-PNP0103:00 (76)
> 0.00 runtime-PNP0C09:00 (51)
> 0.00 runtime-PNP0C0A:00 (53)
> 0.00 runtime-PNP0C0B:00 (54)
> 0.00 runtime-PNP0C0B:01 (55)
> 0.00 runtime-PNP0C0B:02 (56)
> 0.00 runtime-PNP0C0B:03 (57)
> 0.00 runtime-PNP0C0B:04 (58)
> 0.00 runtime-PNP0C0C:00 (59)
> 0.00 runtime-PNP0C0D:00 (60)
> 0.00 runtime-PNP0C0E:00 (61)
> 0.00 runtime-PNP0C14:00 (52)
> 0.00 runtime-alarmtimer (63)
> 0.00 runtime-coretemp.0 (75)
> 0.00 runtime-dcdbas (64)
> 0.00 runtime-dell-laptop (69)
> 0.00 runtime-e820_pmem (71)
> 0.00 runtime-i2c-0 (79)
> 0.00 runtime-i2c-1 (80)
> 0.00 runtime-i2c-2 (81)
> 0.00 runtime-i2c-3 (82)
> 0.00 runtime-i8042 (50)
> 0.00 runtime-microcode (74)
> 0.00 runtime-pcspkr (66)
> 0.00 runtime-platform-framebuffer.0 (70)
> 0.00 runtime-regulatory.0 (73)
> 0.00 runtime-rtsx_usb_ms.1.auto (62)
> 0.00 runtime-rtsx_usb_sdmmc.0.auto (65)
> 0.00 runtime-serial8250 (67)
> 3.00 usb-device-0bda-0129 (10)
> 0.00 usb-device-0c45-6712 (9)
> 0.00 usb-device-1d6b-0002 (12)
> 0.00 usb-device-1d6b-0003 (13)
> 0.00 usb-device-8087-07dc (11)
> 0.00 wlp2s0-link-100 (26)
> 0.00 wlp2s0-link-1000 (27)
> 0.00 wlp2s0-link-high (28)
> 0.00 wlp2s0-packets (29)
> 0.00 wlp2s0-powerunsave (25)
> 0.00 wlp2s0-up (24)
> 0.00 xwakes (86)
>
> Score: 1.9 (5079.7)
> Guess: 9.7
> Actual: 11.3
> ----------------------------------
> Leaving PowerTOP/saved_parameters.powertop
> File will be loaded after taking minimum number of measurement(s) with
> battery only
> Starting PowerTOP power estimate calibration
> Calibrating idle
> System is not available
> unknown op '{'
> To show power estimates do 174 measurement(s) connected to battery only
> System is not available
> Calibrating: disk usage
> Calibrating backlight
> .... device /sys/class/backlight/intel_backlight/brightness
> Calibrating idle
> System is not available
> System is not available
> Calibrating: CPU usage on 1 threads
> Calibrating: CPU usage on 4 threads
> Calibrating: CPU wakeup power consumption
> Calibrating: CPU wakeup power consumption
> Calibrating: CPU wakeup power consumption
> Calibrating USB devices
> .... device /sys/bus/usb/devices/1-5/power/control
> .... device /sys/bus/usb/devices/1-6/power/control
> .... device /sys/bus/usb/devices/1-8/power/control
> .... device /sys/bus/usb/devices/usb1/power/control
> .... device /sys/bus/usb/devices/usb2/power/control
> Calibrating radio devices
> .... device /sys/class/rfkill/rfkill0/soft
> .... device /sys/class/rfkill/rfkill1/soft
> .... device /sys/class/rfkill/rfkill0/soft
> .... device /sys/class/rfkill/rfkill1/soft
> Finishing PowerTOP power estimate calibration
> Parameters after calibration:
>
>
> Parameter state *Cannot load from file
> /var/cache/powertop/saved_parameters.powertop *and
> ----------------------------------
> Value Name
> 1.17 alsa-codec-power (14)
> 1.02 backlight (4)
> 2.08 backlight-boost-100 (8)
> 0.75 backlight-boost-40 (6)
> 0.00 backlight-boost-80 (7)
> 1.97 backlight-power (5)
> 9.66 base power (83)
> 5.81 cpu-consumption (3)
> 24.29 cpu-wakeups (2)
> 0.00 disk-operations (85)
> 0.00 disk-operations-hard (84)
> 0.00 enp3s0-link*Cannot load from file
> /var/cache/powertop/saved_parameters.powertop *and -100 (20)
> 0.00 enp3s0-link-1000 (21)
> 0.00 enp3s0-link-high (22)
> 0.00 enp3s0-packets (23)
> 0.00 enp3s0-powerunsave (19)
> 5.58 enp3s0-up (18)
> 17.40 gpu-operations (17)
> 0.00 radio:hci0 (16)
> 0.00 radio:phy0 (15)
> 0.00 runtime-0000:00:00.0 (30)
> 0.00 runtime-0000:00:02.0 (31)
> 0.00 runtime-0000:00:14.0 (32)
> 0.00 runtime-0000:00:14.2 (33)
> 0.00 runtime-0000:00:15.0 (34)
> 0.00 runtime-0000:00:15.1 (35)
> 0.00 runtime-0000:00:16.0 (36)
> 0.00 runtime-0000:00:17.0 (37)
> 0.00 runtime-0000:00:1c.0 (38)
> 0.00 runtime-0000:00:1c.4 (39)
> 0.00 runtime-0000:00:1c.5 (40)
> 0.00 runtime-0000:00:1f.0 (41)
> 0.00 runtime-0000:00:1f.2 (42)
> 0.00 runtime-0000:00:1f.3 (43)
> 0.00 runtime-0000:00:1f.4 (44)
> 0.00 runtime-0000:01:00.0 (45)
> 0.00 runtime-0000:02:00.0 (46)
> 0.00 runtime-0000:03:00.0 (47)
> 0.00 runtime-ACPI0003:00 (77)
> 0.00 runtime-ACPI000C:00 (78)
> 0.00 runtime-DELLABCE:00 (72)
> 0.00 runtime-INT0800:00 (68)
> 0.00 runtime-INT33A1:00 (49)
> 0.00 runtime-INT344B:00 (48)
> 0.00 runtime-PNP0103:00 (76)
> 0.00 runtime-PNP0C09:00 (51)
> 0.00 runtime-PNP0C0A:00 (53)
> 0.00 runtime-PNP0C0B:00 (54)
> 0.00 runtime-PNP0C0B:01 (55)
> 0.00 runtime-PNP0C0B:02 (56)
> 0.00 runtime-PNP0C0B:03 (57)
> 0.00 runtime-PNP0C0B:04 (58)
> 0.00 runtime-PNP0C0C:00 (59)
> 0.00 runtime-PNP0C0D:00 (60)
> 0.00 runtime-PNP0C0E:00 (61)
> 0.00 runtime-PNP0C14:00 (52)
> 0.00 runtime-alarmtimer (63)
> 0.00 runtime-coretemp.0 (75)
> 0.00 runtime-dcdbas (64)
> 0.00 runtime-dell-laptop (69)
> 0.00 runtime-e820_pmem (71)
> 0.00 runtime-i2c-0 (79)
> 0.00 runtime-i2c-1 (80)
> 0.00 runtime-i2c-2 (81)
> 0.00 runtime-i2c-3 (82)
> 0.00 runtime-i8042 (50)
> 0.00 runtime-microcode (74)
> 0.00 runtime-pcspkr (66)
> 0.00 runtime-platform-framebuffer.0 (70)
> 0.00 runtime-regulatory.0 (73)
> 0.00 runtime-rtsx_usb_ms.1.auto (62)
> 0.00 runtime-rtsx_usb_sdmmc.0.auto (65)
> 0.00 runtime-serial8250 (67)
> 3.00 usb-device-0bda-0129 (10)
> 0.00 usb-device-0c45-6712 (9)
> 0.00 usb-device-1d6b-0002 (12)
> 0.00 usb-device-1d6b-0003 (13)
> 0.00 usb-device-8087-07dc (11)
> 0.00 wlp2s0-link-100 (26)
> 0.00 wlp2s0-link-1000 (27)
> 0.00 wlp2s0-link-high (28)
> 0.00 wlp2s0-packets (29)
> 0.00 wlp2s0-powerunsave (25)
> 0.00 wlp2s0-up (24)
> 0.00 xwakes (86)
>
> Score: 1.9 (5079.7)
> Guess: 9.7
> Actual: 11.3
> ----------------------------------
> Leaving PowerTOP
>
>
>
> After calibration, I do *powertop --auto-tune *and I get:
>
> root@debian:/# powertop --auto-tune
> Loaded 137 prior measurements
> Cannot load from file /var/cache/powertop/saved_parameters.powertop
> File will be loaded after taking minimum number of measurement(s) with
> battery only
> RAPL device for cpu 0
> RAPL Using PowerCap Sysfs : Domain Mask f
> RAPL device for cpu 0
> RAPL Using PowerCap Sysfs : Domain Mask f
> RAPL device for cpu 0
> RAPL Using PowerCap Sysfs : Domain Mask f
> Devfreq not enabled
> Cannot load from file /var/cache/powertop/saved_parameters.powertop
> File will be loaded after taking minimum number of measurement(s) with
> battery only
> To show power estimates do 124 measurement(s) connected to battery only
> unknown op '{'
> Leaving PowerTOP
>
>
>
> My Question is, is it normal to get the lines:
>
> - *Cannot load from file /var/cache/powertop/saved_parameters.powertop*
>
>
> - *Devfreq not enabled*
>
> Is it because of these lines that PowerTop is unable to extend the battery
> life?
> Debian Stretch is currently using PowerTop version 2.8 and I heard
> somewhere on a forum that there is a bug in the 2.8 version. Is it true
> that there is a bug ? And is it that bug which is causing the problem?
>
> I thank you in advance for reading this long email 😜 But I really need
> help.
>
> With Kind Regards,
>
> Dwijesh
>
>
>
