[Bug 66366] New: Laptop with Nvidia GPU is hot while using xserver-xorg-video-nouveau driver

[Bug 66366] New: Laptop with Nvidia GPU is hot while using xserver-xorg-video-nouveau driver

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https://bugs.freedesktop.org/show_bug.cgi?id=66366

          Priority: medium
            Bug ID: 66366
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
           Summary: Laptop with Nvidia GPU is hot while using
                    xserver-xorg-video-nouveau driver
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: nrbrtx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/nouveau
           Product: xorg

I have Sony VAIO F13Z1R laptop with GeForce GT 425M.
Under all versions of Ubuntu (12.04+) it is hot, while using
xserver-xorg-video-nouveau driver.

> sensors
acpitz-virtual-0
Adapter: Virtual device
temp1: +70.0°C (crit = +98.0°C)
temp2: +70.0°C (crit = +98.0°C)

nouveau-pci-0100
Adapter: PCI adapter
temp1: +70.0°C (high = +95.0°C, hyst = +3.0°C)
                       (crit = +105.0°C, hyst = +5.0°C)
                       (emerg = +135.0°C, hyst = +5.0°C)

coretemp-isa-0000
Adapter: ISA adapter
Core 0: +70.0°C (high = +84.0°C, crit = +100.0°C)
Core 1: +70.0°C (high = +84.0°C, crit = +100.0°C)
Core 2: +70.0°C (high = +84.0°C, crit = +100.0°C)
Core 3: +70.0°C (high = +84.0°C, crit = +100.0°C)


For logs see
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1196049.

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[Bug 66366] Laptop with Nvidia GPU is hot while using xserver-xorg-video-nouveau driver

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https://bugs.freedesktop.org/show_bug.cgi?id=66366

nrbrtx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://launchpad.net/bugs/
                   |                            |1196049

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[Bug 66366] Laptop with Nvidia GPU is hot while using xserver-xorg-video-nouveau driver

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https://bugs.freedesktop.org/show_bug.cgi?id=66366

--- Comment #1 from Emil Velikov <emil.l.velikov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---
Currently nouveau does no power management, meaning that
* voltage control
* clock control
* clock gating
* ASPM

are all running on default (set by bios) settings. It's has been worked on for
a while now and there is still more work needed

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[Bug 66366] Laptop with Nvidia GPU is hot while using xserver-xorg-video-nouveau driver

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https://bugs.freedesktop.org/show_bug.cgi?id=66366

Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |NOTABUG

--- Comment #2 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
This is not the appropriate forum to track "power management not supported"
issues. This is something that's being worked on, when it's supported, should
it not work, feel free to file bugs then.

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[Bug 66366] Laptop with Nvidia GPU is hot while using xserver-xorg-video-nouveau driver

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https://bugs.freedesktop.org/show_bug.cgi?id=66366

--- Comment #3 from nrbrtx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org ---
Do you really understand that Nvidia-based 1500-3000$ laptop may be really
killed by overheat with pretty non-binary / no-blob / GPL-friendly opensource
driver? Are you kidding? :)

It seems Linus Torvalds was right about Nvidia and their (Optimus) hardware.


OK, Ilia. Where do yo recommend to post such report about  "power management
not supported" issues?

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[Bug 66366] Laptop with Nvidia GPU is hot while using xserver-xorg-video-nouveau driver

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https://bugs.freedesktop.org/show_bug.cgi?id=66366

--- Comment #4 from Emil Velikov <emil.l.velikov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---
(In reply to comment #3)
> Do you really understand that Nvidia-based 1500-3000$ laptop may be really
> killed by overheat with pretty non-binary / no-blob / GPL-friendly
> opensource driver? Are you kidding? :)
> 
The temperatures you've mentioned will not kill your laptop.

> OK, Ilia. Where do yo recommend to post such report about  "power management
> not supported" issues?
> 
There is not much of a benefit in (re-)posting "power management does not
work", most people are aware about this and working on it one way or the other.
If you really want to help, be more understanding and work with the nouveau
team rather than posting annoying replies.

Btw have you realised the _massive_ amount of work that PM is ? The AMD/ATI DPM
code that landed in linux 3.11 is over 50kloc and all of it was done by the
vendor.

Thanks

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[Bug 66366] Laptop with Nvidia GPU is hot while using xserver-xorg-video-nouveau driver

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https://bugs.freedesktop.org/show_bug.cgi?id=66366

--- Comment #5 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
(In reply to comment #3)
> Do you really understand that Nvidia-based 1500-3000$ laptop may be really
> killed by overheat with pretty non-binary / no-blob / GPL-friendly
> opensource driver? Are you kidding? :)

I really understand. But no amount of understanding will make it a good idea to
file bugs about it. [Also note that most CPU/GPU chips have overheat
protection.]

> OK, Ilia. Where do yo recommend to post such report about  "power management
> not supported" issues?

I would recommend sitting tight and waiting for this functionality to be
released. The Nouveau project's devs are well aware of the lack of power
management support. You can also come to #nouveau and see if some devs are
willing to share their reclocking scripts with you, although it's more than
likely that the answer will be "no" or that they won't work at all for you.

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