[Nouveau] Fans ramping up randomly when idle

[Timothy Madden]

On 11/10/22 01:44, Karol Herbst wrote:
>> [   10.776280] nouveau 0000:0b:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=none
>> [ 3275.720190] nouveau 0000:0b:00.0: therm: temperature (90 C) hit the 'fanboost' threshold
> 
> one thing which might help to figure out what's going on would be to
> know the output of `lspci -t` and `grep .
> /sys/bus/pci/devices/*/power/control`

localhost:/home/timothy # lspci -t
-[0000:00]-+-00.0
            +-00.2
            +-01.0
            +-01.1-[01]----00.0
            +-01.3-[02-09]--+-00.0
            |               +-00.1
            |               \-00.2-[03-09]--+-00.0-[04]--
            |                               +-01.0-[05]--
            |                               +-02.0-[06]----00.0
            |                               +-03.0-[07]----00.0
            |                               +-04.0-[08]--
            |                               \-09.0-[09]----00.0
            +-02.0
            +-03.0
            +-03.1-[0a]--+-00.0
            |            \-00.1
            +-03.2-[0b]--+-00.0
            |            +-00.1
            |            +-00.2
            |            \-00.3
            +-04.0
            +-07.0
            +-07.1-[0c]--+-00.0
            |            +-00.2
            |            \-00.3
            +-08.0
            +-08.1-[0d]--+-00.0
            |            +-00.2
            |            \-00.3
            +-14.0
            +-14.3
            +-18.0
            +-18.1
            +-18.2
            +-18.3
            +-18.4
            +-18.5
            +-18.6
            \-18.7
localhost:/home/timothy # grep . /sys/bus/pci/devices/*/power/control
/sys/bus/pci/devices/0000:00:00.0/power/control:on
/sys/bus/pci/devices/0000:00:00.2/power/control:on
/sys/bus/pci/devices/0000:00:01.0/power/control:on
/sys/bus/pci/devices/0000:00:01.1/power/control:auto
/sys/bus/pci/devices/0000:00:01.3/power/control:auto
/sys/bus/pci/devices/0000:00:02.0/power/control:on
/sys/bus/pci/devices/0000:00:03.0/power/control:on
/sys/bus/pci/devices/0000:00:03.1/power/control:auto
/sys/bus/pci/devices/0000:00:03.2/power/control:auto
/sys/bus/pci/devices/0000:00:04.0/power/control:on
/sys/bus/pci/devices/0000:00:07.0/power/control:on
/sys/bus/pci/devices/0000:00:07.1/power/control:auto
/sys/bus/pci/devices/0000:00:08.0/power/control:on
/sys/bus/pci/devices/0000:00:08.1/power/control:auto
/sys/bus/pci/devices/0000:00:14.0/power/control:on
/sys/bus/pci/devices/0000:00:14.3/power/control:on
/sys/bus/pci/devices/0000:00:18.0/power/control:on
/sys/bus/pci/devices/0000:00:18.1/power/control:on
/sys/bus/pci/devices/0000:00:18.2/power/control:on
/sys/bus/pci/devices/0000:00:18.3/power/control:on
/sys/bus/pci/devices/0000:00:18.4/power/control:on
/sys/bus/pci/devices/0000:00:18.5/power/control:on
/sys/bus/pci/devices/0000:00:18.6/power/control:on
/sys/bus/pci/devices/0000:00:18.7/power/control:on
/sys/bus/pci/devices/0000:01:00.0/power/control:on
/sys/bus/pci/devices/0000:02:00.0/power/control:on
/sys/bus/pci/devices/0000:02:00.1/power/control:on
/sys/bus/pci/devices/0000:02:00.2/power/control:auto
/sys/bus/pci/devices/0000:03:00.0/power/control:auto
/sys/bus/pci/devices/0000:03:01.0/power/control:auto
/sys/bus/pci/devices/0000:03:02.0/power/control:auto
/sys/bus/pci/devices/0000:03:03.0/power/control:auto
/sys/bus/pci/devices/0000:03:04.0/power/control:auto
/sys/bus/pci/devices/0000:03:09.0/power/control:auto
/sys/bus/pci/devices/0000:06:00.0/power/control:auto
/sys/bus/pci/devices/0000:07:00.0/power/control:on
/sys/bus/pci/devices/0000:09:00.0/power/control:on
/sys/bus/pci/devices/0000:0a:00.0/power/control:auto
/sys/bus/pci/devices/0000:0a:00.1/power/control:auto
/sys/bus/pci/devices/0000:0b:00.0/power/control:on
/sys/bus/pci/devices/0000:0b:00.1/power/control:auto
/sys/bus/pci/devices/0000:0b:00.2/power/control:auto
/sys/bus/pci/devices/0000:0b:00.3/power/control:auto
/sys/bus/pci/devices/0000:0c:00.0/power/control:on
/sys/bus/pci/devices/0000:0c:00.2/power/control:on
/sys/bus/pci/devices/0000:0c:00.3/power/control:on
/sys/bus/pci/devices/0000:0d:00.0/power/control:on
/sys/bus/pci/devices/0000:0d:00.2/power/control:on
/sys/bus/pci/devices/0000:0d:00.3/power/control:auto
localhost:/home/timothy #