cannot file a bug report...
Peter Silva
peter at bsqt.homeip.net
Mon Jul 18 18:30:42 UTC 2016
On Mon, Jul 18, 2016 at 11:48 AM, Colin Law <clanlaw at gmail.com> wrote:
> On 18 July 2016 at 16:32, Peter Silva <peter at bsqt.homeip.net> wrote:
>> Just discovered my ethernet card (which is disconnected) consumes
>> 19 watts on my laptop. when I do sudo rmmod r8168 after about ten
>> minutes the laptop is completely cool, normal consumption is something
>> like 11W for the whole machine now (was 24W before.) Checked through
>> the db and it does not appear to be an existing bug.
>>
>> ubuntu-bug r8168-dkms
>>
>> It starts gathering information, then opens a blank window in chrome.
>> that's all. never get to the bug entry form.
>
> Do you get the "Send problem report to the developers" popup?
>
yes.
> Which ubuntu version are you using?
>
16.04
> Are you sure it is not a broken card?
It works fine when ethernet is connected... how would I diagnose that?
> When it is running hot do 'top' or system monitory show that there is
> high processor usage?
>
nope nada. system monitor when sorted by cpu usage shows the top user
using 1% of a cpu. top shows chrome using more than that, but the
load average is still extremely low.
powertop sample:
Summary: 1452.9 wakeups/second, 170.8 GPU ops/seconds, 0.0 VFS
ops/sec and 24.9% CPU use
Power est. Usage Events/s Category Description
14.8 W 0.0 pkts/s Device Network
interface: eth0 (r8168)
2.28 W 75.5 ms/s 338.6 Process compiz
2.13 W 74.4 ms/s 216.8 Process /opt/google/chrome/chrome
614 mW 2.1 ms/s 157.9 Timer tick_sched_timer
554 mW 11.4 ms/s 94.3 Process
/usr/lib/xorg/Xorg -core :0 -seat s
503 mW 3.8 ms/s 121.5 Process
/usr/lib/x86_64-linux-gnu/notify-os
392 mW 7.2 ms/s 70.7 Interrupt [34] i915
340 mW 2.5 ms/s 80.7 Interrupt [4] block(softirq)
325 mW 514.3 µs/s 86.9 kWork intel_unpin_work_fn
top (a few seconds later:)
Tasks: 283 total, 1 running, 282 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.3 us, 0.1 sy, 0.0 ni, 98.9 id, 0.6 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 11733404 total, 8200876 free, 1839840 used, 1692688 buff/cache
KiB Swap: 24761340 total, 24761340 free, 0 used. 9018464 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3311 root 20 0 861052 112568 100632 S 2.0 1.0 0:04.48 Xorg
4982 peter 20 0 1385520 263568 67708 S 1.3 2.2 0:10.33 chrome
4404 peter 20 0 664300 38640 29068 S 1.0 0.3 0:01.14 gnome-term+
2649 root 20 0 0 0 0 S 0.3 0.0 0:00.03 jbd2/sda9-8
4561 peter 20 0 46020 3808 3084 R 0.3 0.0 0:00.24 top
1 root 20 0 119800 5928 3944 S 0.0 0.1 0:01.00 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd
then I do
sudo rmmod 8168
and powertop shows baseline power estimated drops from 23W to 4.7W,
over about a minute. It fluctuates lower, to under 3W.
So it is pretty dramatic and obvious.
> Colin
>
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