* [Bug 100270] power usage increase by approx 4W between kernel 4.7.8 and 4.8.5
[not found] <bug-100270-502@http.bugs.freedesktop.org/>
@ 2017-03-18 23:34 ` bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=100270
Alan Coopersmith <alan.coopersmith@oracle.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Product|xorg |DRI
QA Contact|xorg-team@lists.x.org |
Version|7.7 (2012.06) |unspecified
Assignee|xorg-team@lists.x.org |dri-devel@lists.freedesktop
| |.org
Component|* Other |DRM/other
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^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug 100270] power usage increase by approx 4W between kernel 4.7.8 and 4.8.5
[not found] <bug-100270-502@http.bugs.freedesktop.org/>
2017-03-18 23:34 ` [Bug 100270] power usage increase by approx 4W between kernel 4.7.8 and 4.8.5 bugzilla-daemon
@ 2017-03-19 23:31 ` bugzilla-daemon
2017-03-20 14:05 ` bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=100270
--- Comment #2 from Emil Velikov <emil.l.velikov@gmail.com> ---
If your bisection has gone right, you're looking at either
c39b487f195b93235ee76384427467786f7bf29f (if you're running amdgpu) or
b817634276f7f68c9d1d6d4a27117ff3c2f16956 (if you're on radeon).
lspci should tell you which one, and you should be able to revert either one on
top of 4.8.5. Once you confirm the commit causing the issue, please change the
component accordingly and CC the author - Alex Deucher.
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^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug 100270] power usage increase by approx 4W between kernel 4.7.8 and 4.8.5
[not found] <bug-100270-502@http.bugs.freedesktop.org/>
2017-03-18 23:34 ` [Bug 100270] power usage increase by approx 4W between kernel 4.7.8 and 4.8.5 bugzilla-daemon
2017-03-19 23:31 ` bugzilla-daemon
@ 2017-03-20 14:05 ` bugzilla-daemon
2017-03-20 20:20 ` bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=100270
--- Comment #3 from Alex Deucher <alexdeucher@gmail.com> ---
What is the date on your system bios? The core kernel only enables pcie port
pm (d3cold) on systems with a date of 2015 or newer, but there have been
systems shipping which use those methods since 2013.
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https://bugs.freedesktop.org/show_bug.cgi?id=100270
brett.hassall@gmail.com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |alexdeucher@gmail.com
--- Comment #4 from brett.hassall@gmail.com ---
from dmidecode:
BIOS Information
Vendor: Dell Inc.
Version: A10
Release Date: 02/02/2015
I did a "git checkout tags/v4.8-rc3 -b bug" and built the kernel. The increased
power usage is present as expected.
I'll try the revert next.
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^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug 100270] power usage increase by approx 4W between kernel 4.7.8 and 4.8.5
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https://bugs.freedesktop.org/show_bug.cgi?id=100270
brett.hassall@gmail.com changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|DRM/other |DRM/Radeon
--- Comment #5 from brett.hassall@gmail.com ---
(In reply to Emil Velikov from comment #2)
> If your bisection has gone right, you're looking at either
> c39b487f195b93235ee76384427467786f7bf29f (if you're running amdgpu) or
> b817634276f7f68c9d1d6d4a27117ff3c2f16956 (if you're on radeon).
>
> lspci should tell you which one, and you should be able to revert either one
> on top of 4.8.5. Once you confirm the commit causing the issue, please
> change the component accordingly and CC the author - Alex Deucher.
Following the "git checkout tags/v4.8-rc3 -b bug" I reverted
b817634276f7f68c9d1d6d4a27117ff3c2f16956. Power usage dropped by approx 4.5W
(measured after login once system had settled, wifi not connected).
Changed component to DRM/radeon.
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^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug 100270] power usage increase by approx 4W between kernel 4.7.8 and 4.8.5
[not found] <bug-100270-502@http.bugs.freedesktop.org/>
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https://bugs.freedesktop.org/show_bug.cgi?id=100270
--- Comment #6 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to brett.hassall from comment #5)
> (In reply to Emil Velikov from comment #2)
> > If your bisection has gone right, you're looking at either
> > c39b487f195b93235ee76384427467786f7bf29f (if you're running amdgpu) or
> > b817634276f7f68c9d1d6d4a27117ff3c2f16956 (if you're on radeon).
> >
> > lspci should tell you which one, and you should be able to revert either one
> > on top of 4.8.5. Once you confirm the commit causing the issue, please
> > change the component accordingly and CC the author - Alex Deucher.
>
> Following the "git checkout tags/v4.8-rc3 -b bug" I reverted
> b817634276f7f68c9d1d6d4a27117ff3c2f16956. Power usage dropped by approx 4.5W
> (measured after login once system had settled, wifi not connected).
So apparently your system claims to support pcie pm (d3cold), but either
doesn't or it's disabled for some reason.
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^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug 100270] power usage increase by approx 4W between kernel 4.7.8 and 4.8.5
[not found] <bug-100270-502@http.bugs.freedesktop.org/>
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From: bugzilla-daemon @ 2017-03-21 23:35 UTC (permalink / raw)
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https://bugs.freedesktop.org/show_bug.cgi?id=100270
--- Comment #7 from brett.hassall@gmail.com ---
(In reply to Alex Deucher from comment #6)
> (In reply to brett.hassall from comment #5)
> > (In reply to Emil Velikov from comment #2)
> > > If your bisection has gone right, you're looking at either
> > > c39b487f195b93235ee76384427467786f7bf29f (if you're running amdgpu) or
> > > b817634276f7f68c9d1d6d4a27117ff3c2f16956 (if you're on radeon).
> > >
> > > lspci should tell you which one, and you should be able to revert either one
> > > on top of 4.8.5. Once you confirm the commit causing the issue, please
> > > change the component accordingly and CC the author - Alex Deucher.
> >
> > Following the "git checkout tags/v4.8-rc3 -b bug" I reverted
> > b817634276f7f68c9d1d6d4a27117ff3c2f16956. Power usage dropped by approx 4.5W
> > (measured after login once system had settled, wifi not connected).
>
> So apparently your system claims to support pcie pm (d3cold), but either
> doesn't or it's disabled for some reason.
I've taken a look in the BIOS and there doesn't appear to be any settings under
Power Management related to pcie. I've also checked in /etc/default/grub, there
is only 'quiet' on the CMDLINE settings.
Booted under kernel 4.9, sudo lspci -vv for the radeon card shows:
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1+,D2+,D3hot+,D3cold-)
Status: D3 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Under kernel 4.4 and 4.7 with the lower power consumption, sudo lspci -vv shows
"Unknown header type 7f".
Booted under kernel 4.9, sudo dmesg | grep 01:00.0 shows:
[ 0.515468] pci 0000:01:00.0: [1002:6660] type 00 class 0x038000
[ 0.515480] pci 0000:01:00.0: reg 0x10: [mem 0xe0000000-0xefffffff 64bit
pref]
[ 0.515489] pci 0000:01:00.0: reg 0x18: [mem 0xf7c00000-0xf7c3ffff
64bit]
[ 0.515495] pci 0000:01:00.0: reg 0x20: [io 0xe000-0xe0ff]
[ 0.515506] pci 0000:01:00.0: reg 0x30: [mem 0xf7c40000-0xf7c5ffff pref]
[ 0.515545] pci 0000:01:00.0: supports D1 D2
[ 0.515545] pci 0000:01:00.0: PME# supported from D1 D2 D3hot
[ 0.515566] pci 0000:01:00.0: System wakeup disabled by ACPI
[ 2.950049] radeon 0000:01:00.0: VRAM: 2048M 0x0000000000000000 -
0x000000007FFFFFFF (2048M used)
[ 2.950051] radeon 0000:01:00.0: GTT: 2048M 0x0000000080000000 -
0x00000000FFFFFFFF
[ 2.952510] radeon 0000:01:00.0: firmware: direct-loading firmware
radeon/hainan_pfp.bin
[ 2.952800] radeon 0000:01:00.0: firmware: direct-loading firmware
radeon/hainan_me.bin
[ 2.953657] radeon 0000:01:00.0: firmware: direct-loading firmware
radeon/hainan_ce.bin
[ 2.954265] radeon 0000:01:00.0: firmware: direct-loading firmware
radeon/hainan_rlc.bin
[ 2.955119] radeon 0000:01:00.0: firmware: direct-loading firmware
radeon/hainan_mc.bin
[ 2.955430] radeon 0000:01:00.0: firmware: direct-loading firmware
radeon/hainan_smc.bin
[ 2.989489] radeon 0000:01:00.0: WB enabled
[ 2.989491] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr
0x0000000080000c00 and cpu addr 0xffff9e4896928c00
[ 2.989493] radeon 0000:01:00.0: fence driver on ring 1 use gpu addr
0x0000000080000c04 and cpu addr 0xffff9e4896928c04
[ 2.989494] radeon 0000:01:00.0: fence driver on ring 2 use gpu addr
0x0000000080000c08 and cpu addr 0xffff9e4896928c08
[ 2.989495] radeon 0000:01:00.0: fence driver on ring 3 use gpu addr
0x0000000080000c0c and cpu addr 0xffff9e4896928c0c
[ 2.989496] radeon 0000:01:00.0: fence driver on ring 4 use gpu addr
0x0000000080000c10 and cpu addr 0xffff9e4896928c10
[ 2.989498] radeon 0000:01:00.0: radeon: MSI limited to 32-bit
[ 2.989561] radeon 0000:01:00.0: radeon: using MSI.
[ 3.229692] [drm] Initialized radeon 2.48.0 20080528 for 0000:01:00.0 on
minor 1
There is no mention of D3cold for the radeon card. Comparing lspci and dmesg
output, the pattern seems to be D3cold+ in the device capabilities results in
"PME# supported from D0 D3hot D3cold" in dmesg.
I need the longer battery life for travelling and can cope easily without the
radeon card being used. Is there a workaround, perhaps something in the
modprobe.d, to make the radeon driver revert to old behaviour ie behave as if
there was no d3cold support on the system?
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https://bugs.freedesktop.org/show_bug.cgi?id=100270
--- Comment #8 from brett.hassall@gmail.com ---
As a workaround:
install acpi-call-dkms
run - echo "\_SB.PCI0.PEG0.PEGP.SGOF" | sudo dd of=/proc/acpi/call
Power consumption once settled after login (no wifi connection) drops to
previous 4.7 kernel levels (ie from approx 11,1W to 6.5W)
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https://bugs.freedesktop.org/show_bug.cgi?id=100270
Martin Peres <martin.peres@free.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |MOVED
--- Comment #9 from Martin Peres <martin.peres@free.fr> ---
-- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.
You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/785.
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