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On 2017-09-26T20:58:32+00:00 russianneuromancer wrote:
Created attachment 258613
dmesg with Linux 4.13.3
On Dell Venue 11 Pro 7140 average power consumption in idle increased by
1.3-1.5 times due to events coming from INT343A. According to powertop
since Linux 4.10 INT3432:00 generate around two hundred events on
average, in /sys/devices/pci:00/INT3432:00/i2c-6 there is two
devices: INT343A and SMO91D0. AFAIK INT343A is rt286.
With Linux 4.9.0-4.9.45, Linux 4.11.0-4.11.12 in idle there is around 100
wakeups per second in sum, battery discharge rate around 3-3.5 Watts per second.
But with Linux 4.9.46-4.9.51, Linux 4.10.0-4.10.17, Linux 4.12.0rc1-4.13.3 -
around 300 wakeups per second on average, due to events coming from INT3432:00.
With Linux 4.13.3 battery discharge rate around 4.5 Watts per second.
Probably some commit was backported to Linux 4.9 between .45 and .46 releases.
I have no idea why issue is not reproducible on any Linux 4.11 release I tried.
Sometimes events rate fall from two hundred to one hundred for shorts
period of time (for example I observe this right now on Linux 4.10.0
while removing/installing packages).
Message like this sometimes appear in dmesg:
[ 731.226730] i2c_hid i2c-SMO91D0:00: i2c_hid_get_input: incomplete report
(53/13568)
Complete dmesg with Linux 4.13.3 is attached.
Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1719795/comments/0
On 2017-09-26T21:02:55+00:00 russianneuromancer wrote:
> Sometimes events rate fall from two hundred to one hundred for shorts period
> of time
Correction: here I talk about events coming especially from INT343A, not
total events rate.
Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1719795/comments/1
On 2017-09-26T21:05:08+00:00 russianneuromancer wrote:
Sorry, another correction, just to be sure:
> Sometimes events rate fall from two hundred to one hundred for shorts period
> of time
Here I talk about events coming especially from *INT3432*, not total
events rate.
Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1719795/comments/2
On 2017-10-03T05:33:13+00:00 kai.heng.feng wrote:
Can you do a bisect between 4.9.45 and 4.9.46?
Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1719795/comments/7
On 2017-12-18T03:07:10+00:00 rui.zhang wrote:
since there are not too many changes between 4.9.45 and 4.9.46, please
do git bisect to find out which commit introduces the problem.
Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1719795/comments/8
On 2017-12-18T11:59:28+00:00 russianneuromancer wrote:
> Can you do a bisect between 4.9.45 and 4.9.46?
> since there are not too many changes between 4.9.45 and 4.9.46, please do git
> bisect to find out which commit introduces the problem.
Thanks for advice! I'll try to do so, as soon as it will be possible.
(There is some issues with hardware I usually use for building kernels.)
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https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1719795/comments/9
On 2018-01-15T03:44:13+00:00 rui.zhang wrote:
any updates?
Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1719795/comments/10
On 2018-01-15T11:35:19+00:00 russianneuromancer wrote:
Not yet, as issues mentioned above remain unresolved, so I still can't
rebuild kernel.
Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1719795/comments/11
On 2018-02-06T16:41:06+00:00 russianneuromancer wrote:
Hardware I usually use for building kernels is operational again, so I
hope to do git bisect between 4.9.45 and 4.9.46 in next couple of weeks.
Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1719795/comments/12
On 2018-04-02T01:28:48+00:00 rui.zhang wrote:
ping ...
Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1719795/comments/13
On 2018-04-03T15:19:16+00:00
