Re: w83627ehf: Wrong values reported after resuming from suspend/hibernation

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Am 25.10.2012 21:07, schrieb Jean Delvare:
On Thu, 25 Oct 2012 19:26:45 +0200, Harald Judt wrote:
Am 24.10.2012 21:23, schrieb Jean Delvare:
To be really sure, it would be good if you could set arbitrary non-zero
limits to in1, in4, in5 etc. otherwise we can't be sure these limits
have been restored either.

Good idea. Here is the corresponding part of my adjusted
/etc/sensors3.conf file:

chip "w83627ehf-*" "w83627dhg-*" "w83667hg-*" "nct6775-*" "nct6776-*"

      label in0 "Vcore"
      label in2 "AVCC"
      label in3 "+3.3V"
      label in7 "3VSB"
      label in8 "Vbat"

      set in0_min  0.5 * 1.00
      set in0_max  2.0 * 1.00
      set in1_min  1.6 * 1.00
      set in1_max  1.95 * 1.00
      set in2_min  2.0 * 1.00
      set in2_max  3.5 * 1.00
      set in3_min  2.0 * 1.00
      set in3_max  3.5 * 1.00
      set in4_min  0.8 * 1.00
      set in4_max  1.2 * 1.00
      set in5_min  1.5 * 1.00
      set in5_max  1.95 * 1.00
      set in7_min  2.0 * 1.00
      set in7_max  3.5 * 1.00
      set in8_min  2.0 * 1.00
      set in8_max  3.5 * 1.00

There are some limits for min/max values, e.g. in5_max will get reset to
2.04 if you try to use a higher value. Therefore I've set it to 0.95 to
avoid any confusion.

So, here are the results after sensors -s:

nct6776-isa-0290
Adapter: ISA adapter
Vcore:         +0.96 V  (min =  +0.50 V, max =  +2.00 V)
in1:           +1.84 V  (min =  +1.60 V, max =  +1.95 V)
AVCC:          +3.34 V  (min =  +2.00 V, max =  +3.50 V)
+3.3V:         +3.34 V  (min =  +2.00 V, max =  +3.50 V)
in4:           +1.05 V  (min =  +0.80 V, max =  +1.20 V)
in5:           +1.68 V  (min =  +1.50 V, max =  +1.95 V)
3VSB:          +3.47 V  (min =  +2.00 V, max =  +3.50 V)
Vbat:          +3.31 V  (min =  +2.00 V, max =  +3.50 V)

And after resume:
nct6776-isa-0290
Adapter: ISA adapter
Vcore:         +0.96 V  (min =  +0.00 V, max =  +1.74 V)
in1:           +1.84 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
AVCC:          +3.34 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
+3.3V:         +3.34 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in4:           +1.05 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in5:           +1.68 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
3VSB:          +3.47 V  (min =  +2.00 V, max =  +3.50 V)
Vbat:          +3.31 V  (min =  +2.00 V, max =  +3.50 V)

Apparently, in0-in5 do not get restored, only in7 and in8 do. There is
no in6 on this chip (verified by looking in /sys/class/hwmon).

I don't get it. I have double checked my code and I don't see how this
is possible. Plus Guenter's testing was successful...

Are you 100% certain that the above test was with my driver and not the
one shipping with your distribution kernel?

No, as mentioned before I tested this with the 3.6.2 kernel. Well, I have the tuxonice patch applied, but it shouldn't interfere because I'm using in-kernel suspend. I somehow overlooked I _have_ to use another driver.

Harald

--
`Experience is the best teacher.'

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