[Bug 100270] power usage increase by approx 4W between kernel 4.7.8 and 4.8.5

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=100270

Martin Peres  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |MOVED

--- Comment #9 from Martin Peres  ---
-- 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.

-- 
You are receiving this mail because:
You are the assignee for the bug.___
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 100270] power usage increase by approx 4W between kernel 4.7.8 and 4.8.5

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=100270

--- Comment #8 from brett.hass...@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)

-- 
You are receiving this mail because:
You are the assignee for the bug.___
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 100270] power usage increase by approx 4W between kernel 4.7.8 and 4.8.5

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=100270

--- Comment #7 from brett.hass...@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 :01:00.0: [1002:6660] type 00 class 0x038000
[0.515480] pci :01:00.0: reg 0x10: [mem 0xe000-0xefff 64bit
pref]
[0.515489] pci :01:00.0: reg 0x18: [mem 0xf7c0-0xf7c3
64bit]
[0.515495] pci :01:00.0: reg 0x20: [io  0xe000-0xe0ff]
[0.515506] pci :01:00.0: reg 0x30: [mem 0xf7c4-0xf7c5 pref]
[0.515545] pci :01:00.0: supports D1 D2
[0.515545] pci :01:00.0: PME# supported from D1 D2 D3hot
[0.515566] pci :01:00.0: System wakeup disabled by ACPI
[2.950049] radeon :01:00.0: VRAM: 2048M 0x -
0x7FFF (2048M used)
[2.950051] radeon :01:00.0: GTT: 2048M 0x8000 -
0x
[2.952510] radeon :01:00.0: firmware: direct-loading firmware
radeon/hainan_pfp.bin
[2.952800] radeon :01:00.0: firmware: direct-loading firmware
radeon/hainan_me.bin
[2.953657] radeon :01:00.0: firmware: direct-loading firmware
radeon/hainan_ce.bin
[2.954265] radeon :01:00.0: firmware: direct-loading firmware
radeon/hainan_rlc.bin
[2.955119] radeon :01:00.0: firmware: direct-loading firmware
radeon/hainan_mc.bin
[2.955430] radeon :01:00.0: firmware: direct-loading firmware
radeon/hainan_smc.bin
[2.989489] radeon :01:00.0: WB enabled
[2.989491] radeon :01:00.0: fence driver on ring 0 use gpu addr
0x8c00 and cpu addr 0x9e4896928c00
[2.989493] radeon :01:00.0: fence driver on ring 1 use gpu addr
0x8c04 and cpu addr 0x9e4896928c04
[2.989494] radeon :01:00.0: fence driver on ring 2 use gpu addr
0x8c08 and cpu addr 0x9e4896928c08
[2.989495] radeon :01:00.0: fence driver on ring 3 use gpu addr
0x8c0c and cpu addr 0x9e4896928c0c
[2.989496] radeon :01:00.0: fence driver on ring 4 use gpu addr
0x8c10 and cpu addr 0x9e4896928c10
[2.989498] radeon :01:00.0: radeon: MSI limited to 32-bit
[2.989561] radeon :01:00.0: radeon: using MSI.
[3.229692] [drm] Initialized radeon 2.48.0 20080528 for :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?

-- 
You are receiving this mail because:
You are the assignee for the bug.___
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 100270] power usage increase by approx 4W between kernel 4.7.8 and 4.8.5

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=100270

--- Comment #6 from Alex Deucher  ---
(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.

-- 
You are receiving this mail because:
You are the assignee for the bug.___
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 100270] power usage increase by approx 4W between kernel 4.7.8 and 4.8.5

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=100270

brett.hass...@gmail.com changed:

   What|Removed |Added

  Component|DRM/other   |DRM/Radeon

--- Comment #5 from brett.hass...@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.

-- 
You are receiving this mail because:
You are the assignee for the bug.___
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 100270] power usage increase by approx 4W between kernel 4.7.8 and 4.8.5

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=100270

brett.hass...@gmail.com changed:

   What|Removed |Added

 CC||alexdeuc...@gmail.com

--- Comment #4 from brett.hass...@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.

-- 
You are receiving this mail because:
You are the assignee for the bug.___
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 100270] power usage increase by approx 4W between kernel 4.7.8 and 4.8.5

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=100270

--- Comment #3 from Alex Deucher  ---
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.

-- 
You are receiving this mail because:
You are the assignee for the bug.___
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 100270] power usage increase by approx 4W between kernel 4.7.8 and 4.8.5

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=100270

--- Comment #2 from Emil Velikov  ---
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.

-- 
You are receiving this mail because:
You are the assignee for the bug.___
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 100270] power usage increase by approx 4W between kernel 4.7.8 and 4.8.5

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=100270

Alan Coopersmith  changed:

   What|Removed |Added

Product|xorg|DRI
 QA Contact|xorg-t...@lists.x.org   |
Version|7.7 (2012.06)   |unspecified
   Assignee|xorg-t...@lists.x.org   |dri-devel@lists.freedesktop
   ||.org
  Component|* Other |DRM/other

-- 
You are receiving this mail because:
You are the assignee for the bug.___
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel