On 1/28/25 03:50, Anssi Saari wrote:
> Eben King <e...@gmx.us> writes:
>
> I don't know if there's more history to this issue but a couple of
> things come to mind.
>
>> Checking card: NVIDIA Corporation GM204 [GeForce GTX 970] (rev a1)
>> Your card is supported by all driver versions.
>> Your card is also supported by the Tesla 470 drivers series.
>
> What about this as an alternative? nvidia-tesla-470-driver instead of
> nvidia-driver?
>
> And what about controlling the fan(s) manually? See for example
> https://askubuntu.com/questions/42494/how-can-i-change-the-nvidia-gpu-fan-speed
Good guess, but that was weird. The GPU was working today
for reasons unknown, but I figured "what could be the harm in setting the
fan to a higher value?". So I tried.
eben@cerberus:~$ sudo nvidia-xconfig --cool-bits=4
[sudo] password for eben:
sudo: nvidia-xconfig: command not found
Apparently nvidia-xconfig is not in root's $PATH. Just for kicks I went
into nvidia-xconfig (as me), checked "Enable GPU Fan Setting", went to
40-some% and hit Apply. The fan immediately went wonky, returning random
values while presumably not actually running because the GPU temp slowly rose.
Well, the command's for a different OS so YMMV. But one of the comments
said "This will generate a completely new xorg.conf and also adds
Option "Coolbits" "4" to Section "Screen"." Since I currently have no
xorg.conf I wondered why manual fan speed setting was enabled. I used to
have an xorg.conf to which I'd added that, but things happened. A bit of
poking around showed it got renamed to
-rw-r--r-- 1 root root 1226 Aug 31 16:47 /etc/X11/xorg.conf.nvidia
so I did
lrwxrwxrwx 1 root root 16 Jan 28 10:13 /etc/X11/xorg.conf -> xorg.conf.nvidia
and restarted X. No dice, fan's still returning crazy values.
FTR, this is what I mean by "crazy values":
eben@cerberus:~$ ./monitor_fan
2025-01-28 11:23:57 71%
2025-01-28 11:23:58 26%
2025-01-28 11:23:59 0%
2025-01-28 11:24:00 58%
2025-01-28 11:24:01 57%
2025-01-28 11:24:02 103%
2025-01-28 11:24:03 0%
2025-01-28 11:24:04 74%
2025-01-28 11:24:05 18%
2025-01-28 11:24:06 0%
2025-01-28 11:24:07 30%
2025-01-28 11:24:08 75%
2025-01-28 11:24:09 0%
2025-01-28 11:24:11 43%
2025-01-28 11:24:12 34%
2025-01-28 11:24:13 49%
2025-01-28 11:24:14 7%
eben@cerberus:~$ cat monitor_fan
#! /bin/sh
prevSpeed=-1
nvidia-smi --format=csv,noheader,nounits --query-gpu=fan.speed --loop=1 \
| while read currentSpeed ; do
if [ $currentSpeed -ne $prevSpeed ] ; then
echo $(date "+%F %T") ${currentSpeed}%
prevSpeed=$currentSpeed
fi
done
> Note the possible caveats though.
Yeah. Worst case, restore /usr from backup.
