[Bug 67178] discrete radeon HD 6400M/7400M intense heating even though it's "off"

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=67178

Martin Peres  changed:

   What|Removed |Added

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

--- Comment #3 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/358.

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[Bug 67178] discrete radeon HD 6400M/7400M intense heating even though it's "off"

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=67178

--- Comment #2 from Tomas Pospisek  ---
So if I boot with "radeon.dpm=1" then, as allready described, the laptop uses
"relatively little" power, and is faning off some heat continuously, even when
I set:

  # echo "battery" > /sys/class/drm/card1/device/power_dpm_state

Whether I do the following does *not* seem to matter:

  # echo IGD > /sys/kernel/debug/vgaswitcheroo/switch
  # echo OFF > /sys/kernel/debug/vgaswitcheroo/switch

But if I boot *without* "radeon.dpm=1" then the laptop will stay cool without
fans running out of the box using around 14W.

The various settings will show this then:

  # cat /sys/class/drm/card1/device/power_method
  dpm
  # cat /sys/class/drm/card1/device/power_profile
  default
  # cat /sys/class/drm/card1/device/power_dpm_state
  balanced

Weird that power_method would show "dpm" even though I have booted *without*
"radeon.dpm=1" ?!

When I then set:

  # echo "battery" > /sys/class/drm/card1/device/power_dpm_state

Power consumption will drop even further to ~11W.

The overal logic of all of this is evidently completely escaping me... 8-o

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[Bug 67178] discrete radeon HD 6400M/7400M intense heating even though it's "off"

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=67178

--- Comment #1 from Tomas Pospisek  ---
Created attachment 82828
  --> https://bugs.freedesktop.org/attachment.cgi?id=82828=edit
dmesg

dmesg with wlan stuff edited out

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[Bug 67178] discrete radeon HD 6400M/7400M intense heating even though it's off

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=67178

--- Comment #1 from Tomas Pospisek tpo_...@sourcepole.ch ---
Created attachment 82828
  -- https://bugs.freedesktop.org/attachment.cgi?id=82828action=edit
dmesg

dmesg with wlan stuff edited out

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[Bug 67178] discrete radeon HD 6400M/7400M intense heating even though it's off

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=67178

--- Comment #2 from Tomas Pospisek tpo_...@sourcepole.ch ---
So if I boot with radeon.dpm=1 then, as allready described, the laptop uses
relatively little power, and is faning off some heat continuously, even when
I set:

  # echo battery  /sys/class/drm/card1/device/power_dpm_state

Whether I do the following does *not* seem to matter:

  # echo IGD  /sys/kernel/debug/vgaswitcheroo/switch
  # echo OFF  /sys/kernel/debug/vgaswitcheroo/switch

But if I boot *without* radeon.dpm=1 then the laptop will stay cool without
fans running out of the box using around 14W.

The various settings will show this then:

  # cat /sys/class/drm/card1/device/power_method
  dpm
  # cat /sys/class/drm/card1/device/power_profile
  default
  # cat /sys/class/drm/card1/device/power_dpm_state
  balanced

Weird that power_method would show dpm even though I have booted *without*
radeon.dpm=1 ?!

When I then set:

  # echo battery  /sys/class/drm/card1/device/power_dpm_state

Power consumption will drop even further to ~11W.

The overal logic of all of this is evidently completely escaping me... 8-o

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