[Nouveau] [PATCH 0/2] reclocking stability improvements

[Martin Peres]

Le 29/04/2011 02:56, Nigel Cunningham a écrit :
> Hi.
>
> On 29/04/11 04:35, Martin Peres wrote:
>> Le 28/04/2011 20:29, Maxim Levitsky a écrit :
>>> On Thu, 2011-04-28 at 20:24 +0200, Martin Peres wrote:
>>>> Le 28/04/2011 18:58, Maxim Levitsky a écrit :
>>>>> Interesting fact is that GPU temperatures rise to very high levels
>>>>> (~75C) even while doing CPU only work (like compiling kernel for
>>>>> example).
>>>> Let me guess, you're on a laptop? The temperature of the case goes up
>>>> when the processor is working and so, it cools the GPU less ;)
>>> Yes, but that doesn't happen while using nvidia to this extent.
>>> I think that GPU has many units running in endless loop doing nothing
>>> but consuming power (~5W) difference!
>> I really need to have a look at this. I have a power meter now (acpi
>> reports me funky power consumption figures because my battery is dead).
> Just been reading through your posts from last night, and wanted to let
> you know I'm interested and willing to test patches too.
>
> I have an 8600GTS based laptop, and have seen the same range of power
> usage (ie have seen 14W in the page - presumably when I was using the
> blob -, but can only get it down to 23W at the moment using Nouveau).
>
> Regards,
>
> Nigel
9W! Well, you can try downclocking the card, but this won't get you down 
to 14W. When fan management is done, I'll have a look at what the blob 
does and try to find some magic there.

Martin