Those errors aren't printed when booting with hdmi connected. Attached
related dmesg output. Device `01:00.1` is suspended.
I can confirm from documentation about this laptop (Acer aspire
A715-71G) that the embedded display is connected to the intel GPU (eDP)
and the HDMI port is connected to the
5.8.0-35-generic #37~lp1907212+4
Nvidia gpu successfully powered down.
$ cat /sys/bus/pci/devices/:01:00.1/power/runtime_status
suspended
The previous snd_hda_intel error messages aren't printed anymore, yet
"snd_hda_intel :01:00.1: can't change power state from D3cold to D0
(config space
With this one 5.8.0-35-generic #37~lp1907212+3, nvidia gpu isn't powered down:
$ cat /sys/bus/pci/devices/:01:00.1/power/runtime_status
active
$ cat /sys/bus/pci/devices/:01:00.1/power/control
auto
At ~242 there are also snd_hda_intel errors on attached dmesg, which are later
reprinted eve
With this kernel 5.8.0-35-generic #37~lp1907212+2 nvidia gpu is
successfully powered down, and idle power consumption was normal at 5-6
watt.
$ cat /sys/bus/pci/devices/:01:00.1/power/runtime_status
suspended
$ cat /sys/bus/pci/devices/:01:00.1/power/control
auto
On dmesg output there are
$ cat /sys/bus/pci/devices/:01:00.1/power/runtime_status
active
$ cat /sys/bus/pci/devices/:01:00.1/power/control
auto
They are the same with both 5.8.0-31-generic and 5.8.0-35-generic from
https://people.canonical.com/~khfeng/lp1907212/
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Dmesg after booting with provided kernel
https://people.canonical.com/~khfeng/lp1907212/
High power consumption remains, `echo :01:00.1 | sudo tee
/sys/module/snd_hda_intel/drivers/pci:snd_hda_intel/unbind` works.
** Attachment added: "dmesg_5.8.0-35-generic.txt"
https://bugs.launchpad.ne
$ uname -r
5.10.0-051000rc6-generic
Dmesg attached after booting with intel gpu and 5.10, high power consumption
remains, again
`echo :01:00.1 | sudo tee
/sys/module/snd_hda_intel/drivers/pci:snd_hda_intel/unbind` works.
** Attachment added: "dmesg_intel_powersavingmode_5.10.0-051000rc6-ge
It was certainly working with 5.4.0-* from 20.04 at some time, I have
been mainly using dGPU for 2-3 months, and wouldn't have noticed any
regressions.
Strangely, I tested with 5.4.0-56-generic that remained after the
upgrade, and it is also not powering down dGPU.
20.10 didn't upgrade nvidia dri
This error on dmesg is relevant `snd_hda_intel :01:00.1: can't
change power state from D3cold to D0 (config space inaccessible)`, if I
unbind the nvidia audio device function with `echo :01:00.1 >
/sys/module/snd_hda_intel/drivers/pci:snd_hda_intel/unbind` power
consumption returns to norma
** Summary changed:
- Power consumption regression after ugrade to 20.10 5.8.0-31-generic
+ Power consumption regression after upgrade to 20.10 5.8.0-31-generic
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** Attachment added: "dmesg.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1907212/+attachment/5441929/+files/dmesg.log
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https://bugs.launchpad.net/bugs/1907212
** Attachment added: "lspci-vnvn"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1907212/+attachment/5441928/+files/lspci-vnvn
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https://bugs.launchpad.net/bugs/19072
Public bug reported:
After upgrading to Ubuntu 20.10 which ships kernel 5.8.0-31-generic,
battery life is considerably less and power consumption is about 10
watts more idle, (idling at 14-15 watts) using integrated graphics. This
is a hybrid GPU laptop Intel HD 630/GP107M, and based on past
exper
Unfortunately, the installation was upgraded to eoan and as this is my
daily used system, I can't provide a disco installation during the
foreseeable future. However I had verified a test kernel on 2019-08-27
#19 on disco.
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P
** Tags removed: verification-needed-eoan
** Tags added: verification-done-eoan
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https://bugs.launchpad.net/bugs/1840835
Title:
High power consumption using 5.0.0-25-generi
Enabling proposed on eoan, and upgrading kernel to 5.3.0-24-generic
fixes the issue.
In eoan 19.10 the way graphics switch between nvidia and intel changed,
specifically:
If system booted with Intel, nvidia is not detectable on lspci and a reboot is
required to use it, so nvidia is sort of disab
** Attachment added: "dmesg50028nvidia"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1840835/+attachment/5285033/+files/dmesg50028nvidia
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I installed the test kernel:
linux-headers-5.0.0-28_5.0.0-28.29~lp1840835_all.deb
linux-headers-5.0.0-28-generic_5.0.0-28.29~lp1840835_amd64.deb
linux-image-unsigned-5.0.0-28-generic_5.0.0-28.29~lp1840835_amd64.deb
linux-modules-5.0.0-28-generic_5.0.0-28.29~lp1840835_amd64.deb
linux-modules-extra-5
** Attachment added: "lspcivvs"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1840835/+attachment/5283796/+files/lspcivvs
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$ cat /sys/bus/pci/devices/:01:00.0/power/runtime_suspended_time
0
$ cat /sys/bus/pci/devices/:01:00.1/power/runtime_suspended_time
4432
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** Attachment added: "dmesg"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1840835/+attachment/5283669/+files/dmesg
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https://bugs.launchpad.net/bugs/1840835
Title:
No, running sudo powertop --auto-tune doesn't eliminate the issue. While
having all powertop tunables enabled, powertop reports ~10 watt more on
5.0.0-25
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This fix possibly causes the nvidia gpu to stay awake in hybrid laptop
setups, lowering the battery life #1840835
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https://bugs.launchpad.net/bugs/1836308
Title:
Unhide
I noticed that on 5.0.0-25-generic the module snd_hda_codec_hdmi is
loaded, which is not true for 5.0.0-23-generic.
http://changelogs.ubuntu.com/changelogs/pool/main/l/linux-hwe/linux-
hwe_5.0.0-25.26~18.04.1/changelog
* Unhide Nvidia HDA audio controller (LP: #1836308)
- PCI: Enable NVIDIA
apport-collect has this issue:
$ apport-collect 1840835
dpkg-query: no packages found matching linux
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https://bugs.launchpad.net/bugs/1840835
Title:
High power consumption
This has only occurred on 5.0.0-25-generic.
nvidia-driver-430
GP107M [GeForce GTX 1050 Mobile]
** Description changed:
After updating to 5.0.0-25-generic kernel, battery life is considerably
less and power consumption is about 10 watts more idle, using integrated
graphics. This is a hybrid
** Attachment added: "FILENAME.apport"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1840835/+attachment/5283548/+files/FILENAME.apport
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** Attachment added: "lspci-vnvn.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1840835/+attachment/5283547/+files/lspci-vnvn.log
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Public bug reported:
After updating to 5.0.0-25-generic kernel, battery life is considerably
less and power consumption is about 10 watts more idle, using integrated
graphics. This is a hybrid GPU laptop Intel HD 630/GP107M, and a
possible cause is not powering off the dedicated GPU completely whi
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