https://bugzilla.novell.com/show_bug.cgi?id=816388
https://bugzilla.novell.com/show_bug.cgi?id=816388#c49
--- Comment #49 from Moritz Duge 2013-06-19 06:54:23 UTC ---
@Jean Delvare
I have to be on battery (no ac) to get power consumption values. I just found
out, that I didn't got those 7350 mA and 6650 mA values using powertop but
using KDE's System-Monitor ( ksysguard ). It has a sensor called
"acpi/battery/0/batteryusage" and it's unit is mA. It always shows nearly about
the same value as powertop does (example: powertop shows 17.2 W and ksysguard
shows 17117 mA).
ksysguard is just updating the value more frequently. I don't know why
ksysguard talks about mA. I know, that's something completely different then W
( https://en.wikipedia.org/wiki/Watt https://en.wikipedia.org/wiki/Ampere ).
But the values I wrote should be something like:
HD active: 7.3 W
HD standby: 6.6 W
Don't wonder: I was really doing nothing at my notebook for about 10 minutes,
to get it down to 6.6 W. I actually waited until the value didn't fluctuated
anymore before I started testing the hdd power consumption.
@Robert Milasan
I understand, that this isn't something that feels nice. But consider: I
actually saw this behavior on all notebooks I checked for it and openSUSE is
running on:
Thinkpad x220
Thinkpad x220t (Tablet)
R-Series Thinkpad (about 8 years old)
L-Series Thinkpad
This tells me, this issue isn't rare! And it's an issue that breaks hardware!!!
So it should be fixed!
One more note:
I was using laptop-mode-tools for some time after I bought my notebook. After
upgrading to openSUSE 12.3 I recognized, that laptop-mode-tools gave me no more
power saving (on openSUSE 12.2 it still used a lot). So I uninstalled
laptop-mode-tools and after that, the hdd-clicking issue began. So on notebook
with laptop-mode-tools this bug may not appear, as long as laptop-mode-tools
are running.
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