28 lines
1.0 KiB
Diff
28 lines
1.0 KiB
Diff
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From: Jean Delvare <jdelvare@suse.de>
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Subject: pwmconfig: Further raise the fan threshold
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References: boo#1181890
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Upstream: not yet, submitted 2021-02-11 but upstream is dead
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Modern 4-pin fans can have a minimum speed (PWM=0) which is still
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relatively high. I've seen 4500 RPM fans lower their speed to only
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3500 RPM, which is 77% of the maximum speed, above our current
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detection threshold (3/4 or 75%). Increase the threshold to 5/6
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(roughly 83%) to make sure such fans are handled properly.
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Signed-off-by: Jean Delvare <jdelvare@suse.de>
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---
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prog/pwm/pwmconfig | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- lm-sensors.orig/prog/pwm/pwmconfig 2021-02-11 11:31:40.636126815 +0100
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+++ lm-sensors/prog/pwm/pwmconfig 2021-02-11 15:30:12.831007617 +0100
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@@ -455,7 +455,7 @@ do
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OS=$(echo $SPEEDS | cut -d' ' -f$count)
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S=$(echo $CURRENT_SPEEDS | cut -d' ' -f$count)
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echo " $j ... speed was $OS now $S"
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- let threshold=3*$OS/4
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+ let threshold=5*$OS/6
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if [ $S -lt $threshold ]
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then
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echo " It appears that fan $j"
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