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    SubjectRe: [lm-sensors] bad temperature values from w83781d in 2.6.22
    Hi Mark,

    On Wed, Aug 08, 2007 at 11:56:42PM -0400, Mark M. Hoffman wrote:
    > Hi Joerg:
    >
    > * Joerg Sommrey <jo@sommrey.de> [2007-08-08 17:17:16 +0200]:
    > > Hi Mark,
    > >
    > > just to eliminate as many impacts as possible, I did:
    > > - reinstall the unmodified sensors.conf from Tyan's support page
    > > - power off before rebooting
    > >
    > > A call to "sensors -s" is done without errors in all cases.
    > > The module parameters I use currently with both kernels:
    > >
    > > options w83781d force_w83782d=0,0x2d force_subclients=0,0x2d,0x48,0x49
    > > options w83627hf force_addr=0x0c00
    > >
    > > When I first realized the problem, I didn't use w83627hf yet. Results
    > > are the same when w83781d is used as driver for w83627hf.
    > > Parameters in that case just from Tyan:
    > >
    > > options w83781d force_w83782d=0,0x2d force_subclients=0,0x2d,0x48,0x49 force_w83627hf=0,0x2c force_subclients=0,0x2c,0x4a,0x4b init=0
    > >
    > > "My" i2cdump doesn't accept an -y option, maybe a Debianism. Results
    > > see below.
    >
    > Newer i2cdump skips the 5-second warning when given -y, that's all.
    >
    > > ### 2.6.21 ###############################
    > > Script started on Wed Aug 8 16:53:10 2007
    > > bear:~/hwmon# i2cdump 0 0x2d b 0 0x4e
    >
    > (snip tons of results)
    >
    > Thanks for sending all that. I see one bug clearly, and I'm pretty close to
    > seeing the other one. But for tonight, I need sleep.
    >
    > In the meantime, please try this command as root, against the newer kernel,
    > *after* you've done 'sensors -s':
    >
    > # i2cset -f 0 0x2d 0x5d 0x0e b
    >
    > Wait > 2 seconds for the hardware to update itself, then run 'sensors' again.
    > I'm pretty sure you'll see the correct temps.
    The displayed temperatures changed to 67.5°C / 66.0°C. Still, this seems to
    be too high. The power supply's fan runs too slow for such CPU
    temperatures. In older kernels it becomes noisy above 50°C.

    Under load the temperatures shown are around 95°C, way too high.

    -jo

    --
    -rw-r--r-- 1 jo users 62 2007-08-08 21:06 /home/jo/.signature
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