[Nouveau] Bug or not?

[Evan Foss]

Thanks again.

This works and the heat has dropped substantially. It is still not as
cool as I would like but this will do for now. I still need to file a
bug report with the intel / apple gmux people.

-Evan

On Sat, Feb 14, 2015 at 10:42 PM, Evan Foss <evanfoss at gmail.com> wrote:
> On the older kernel
>
> [    6.494956] nouveau  [     CLK][0000:01:00.0] 07: core 270-405 MHz
> memory 838 MHz
> [    6.494989] nouveau  [     CLK][0000:01:00.0] 0a: core 270-774 MHz
> memory 1560 MHz
> [    6.495015] nouveau  [     CLK][0000:01:00.0] 0e: core 270-774 MHz
> memory 4000 MHz
> [    6.495182] nouveau  [     CLK][0000:01:00.0] --: core 405 MHz memory 680 MHz
>
> On Sat, Feb 14, 2015 at 10:35 PM, Evan Foss <evanfoss at gmail.com> wrote:
>> Because I am on a macbook the VBIOS might be wonky.
>>
>> I tried turning off nVidia and using intel. The result was a blank
>> screen. I know other people had the same bug which was something to do
>> with reprobing lvds?! I saw patches go by and every time I tried one
>> the results were the same. fail. I was actually about to post a bug
>> report to the intel (i915) people about it.
>>
>> I tried to work out how to get optimus to work. After trying several
>> different sets of instructions I never found a working configuration
>> and put it aside. I never used to use opengl but lately my pcb
>> software has adopted it so my needs changed.
>>
>> I will get back to you with more results on this matter after I get
>> the newer kernel up.
>>
>>
>> On Sat, Feb 14, 2015 at 10:09 PM, Ilia Mirkin <imirkin at alum.mit.edu> wrote:
>>> On Sat, Feb 14, 2015 at 9:56 PM, Evan Foss <evanfoss at gmail.com> wrote:
>>>> I have a side question which may be the subject of a future second bug
>>>> report. I have been lurking on the nouveau mailing list for some time.
>>>> I understand from various posts that the nvidia gpu clock speed right
>>>> now is set to the lowest possible setting. Why does my machine run so
>>>
>>> Often but not always the case -- the clock speed is whatever the VBIOS
>>> leaves it in. For kepler, that is usually the lowest setting.
>>>
>>>> much hotter in linux than macos? I turned off the intel graphics and
>>>> the cpu clock is set to the lowest available speed.
>>>
>>> You should instead turn off the nvidia graphics and run off intel --
>>> intel is much less power-hungry than nvidia, even at the lowest
>>> clocks. If it's an optimus setup, the nvidia gpu should automatically
>>> power off until needed (either because some display is connected to
>>> it, or for offloading).
>>>
>>>>
>>>> How do I get a display of the GPU clocking speeds?
>>>
>>> You should see it in dmesg... look for CLK lines. The ones with -- (or
>>> AC/DC) will show the current setting. Or boot with nouveau.pstate=1
>>> and you should have a /sys/class/drm/card*/device/pstate file.
>>>
>>>   -ilia
>>
>>
>>
>> --
>> Home
>> http://evanfoss.googlepages.com/
>> Work
>> http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/
>
>
>
> --
> Home
> http://evanfoss.googlepages.com/
> Work
> http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/



-- 
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