Displaying 7 results from an estimated 7 matches for "pwmperiod".
2017 Nov 23
2
Addressing the problem of noisy GPUs under Nouveau
...verted. That
> would probably make it *very* difficult to find a sensible algorithm that
> covered all the SKUs, given that some are inverted and others are not.
>
> For the noisy GPUs, a very useful experiment would be to try inverting it,
> like this:
>
> pwmDutyCycle = pwmPeriod - pwmDutyCycle;
>
> ...and then see if fan control starts behaving closer to how you've actually
> programmed it.
>
> Would that be easy enough to try out? It should help narrow down the
> problem at least.
>
Hey John,
Unfortunately, we know about PWM inversion, and on...
2018 Jan 29
1
Addressing the problem of noisy GPUs under Nouveau
...>>>>> covered all the SKUs, given that some are inverted and others are not.
>>>>>
>>>>> For the noisy GPUs, a very useful experiment would be to try inverting it,
>>>>> like this:
>>>>>
>>>>> pwmDutyCycle = pwmPeriod - pwmDutyCycle;
>>>>>
>>>>> ...and then see if fan control starts behaving closer to how you've actually
>>>>> programmed it.
>>>>>
>>>>> Would that be easy enough to try out? It should help narrow down the
>>>...
2017 Nov 23
2
Addressing the problem of noisy GPUs under Nouveau
Hey,
Thanks for your answer, Andy!
On 22/11/17 04:06, Ilia Mirkin wrote:
> On Tue, Nov 21, 2017 at 8:29 PM, Andy Ritger <aritger at nvidia.com> wrote:
>> Hi Martin,
>
> Martin should have complete answers,
>
>>
>> I was asked to clarify a few things:
>>
>> (1) Are all the user reports of loud fans on Fermi-era GPUs?
>
> Yes. Although I
2017 Nov 23
0
Addressing the problem of noisy GPUs under Nouveau
...etation of the PWM duty cycle is inverted. That
would probably make it *very* difficult to find a sensible algorithm that
covered all the SKUs, given that some are inverted and others are not.
For the noisy GPUs, a very useful experiment would be to try inverting it,
like this:
pwmDutyCycle = pwmPeriod - pwmDutyCycle;
...and then see if fan control starts behaving closer to how you've actually
programmed it.
Would that be easy enough to try out? It should help narrow down the
problem at least.
thanks,
John Hubbard
2017 Nov 28
0
Addressing the problem of noisy GPUs under Nouveau
...ld probably make it *very* difficult to find a sensible algorithm that
>> covered all the SKUs, given that some are inverted and others are not.
>>
>> For the noisy GPUs, a very useful experiment would be to try inverting it,
>> like this:
>>
>> pwmDutyCycle = pwmPeriod - pwmDutyCycle;
>>
>> ...and then see if fan control starts behaving closer to how you've actually
>> programmed it.
>>
>> Would that be easy enough to try out? It should help narrow down the
>> problem at least.
>>
>
> Hey John,
>
> Unfo...
2018 Jan 28
3
Addressing the problem of noisy GPUs under Nouveau
...y* difficult to find a sensible algorithm that
>>> covered all the SKUs, given that some are inverted and others are not.
>>>
>>> For the noisy GPUs, a very useful experiment would be to try inverting it,
>>> like this:
>>>
>>> pwmDutyCycle = pwmPeriod - pwmDutyCycle;
>>>
>>> ...and then see if fan control starts behaving closer to how you've actually
>>> programmed it.
>>>
>>> Would that be easy enough to try out? It should help narrow down the
>>> problem at least.
>>>
>>...
2018 Jan 29
0
Addressing the problem of noisy GPUs under Nouveau
...ensible algorithm that
>>>> covered all the SKUs, given that some are inverted and others are not.
>>>>
>>>> For the noisy GPUs, a very useful experiment would be to try inverting it,
>>>> like this:
>>>>
>>>> pwmDutyCycle = pwmPeriod - pwmDutyCycle;
>>>>
>>>> ...and then see if fan control starts behaving closer to how you've actually
>>>> programmed it.
>>>>
>>>> Would that be easy enough to try out? It should help narrow down the
>>>> problem at leas...