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WX 4100, Fan Curve not accurate #311

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knuxyl opened this issue Apr 23, 2024 · 4 comments
Open
2 tasks done

WX 4100, Fan Curve not accurate #311

knuxyl opened this issue Apr 23, 2024 · 4 comments

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@knuxyl
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knuxyl commented Apr 23, 2024

Checklist

Bug description

Fan is running about 20% faster than what the curve is set to. I've been watching it for 30 minutes and it never slows down. I tried changing some settings but it seems to give a consistent ~20% increase of set values to fan speed.

I was originally using amdgpufan service to control speeds through a configuration file and it worked as expected. I disabled the service, installed this, enabled the daemon, restarted, and have been experiencing this issue since.

LACT does control the fan successfully, just not correctly.

Screenshot from 2024-04-23 09-40-43

System info

LACT-sysfs-snapshot-20240423-072913.tar.gz

- LACT version: 0.5.4-release (commit 6dc3520)
- GPU model: AMD Radeon Pro WX 4100 (0x1002:0x67E3:0x0)
- Kernel version: 6.6.15-amd64
- Distribution: Debian Testing
@ilya-zlobintsev
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Did you take the screenshot with a curve at a different time than the snapshot? Because the snapshot has a different curve in the config (/etc/lact/config.yaml):

      curve:
        30: 0.0
        35: 0.2
        40: 0.4
        50: 0.6006192
        60: 0.7987616
        70: 1.0

Also, does the static speed setting work correctly?

@knuxyl
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knuxyl commented May 5, 2024 via email

@Slater91
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I see the same with a WX 3100, except that there is a 15% discrepancy instead of 20%.

@sladiri
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sladiri commented Jun 11, 2024

I seem to have the same issue, using an RX6600XT (XFX Speedster SWFT 210 AMD Radeon RX 6600 Core).
Edit: tried static speed settings:
slider setting -> reported speed

  • 60 -> 79
  • 50 -> 69
  • 40 -> 60
  • 30 -> 49
  • 25 -> 41
  • 20 -> 35
  • 15 -> 26 (both fans runnging)
  • 12 -> 20 (both fans running)
  • 10 -> 34 (one of two fans running)
  • <=9 -> 0 (fans stopped)

Looks like the reported speed is also different when only one of two fans are running. I guess this is an edge case though.

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