latest findings - my older posting from ~ 11 days ago / Tyan Tiger MoBo 2460

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Thanks for the report.

80c0: 68 48 20 2c 2c 6c 6c 6c 65 65 44 65 28 4c 20 44

the 0x48 means that DATA line of smbus is forced low
so the bus is stuck. The bit 5 offers the realtime status
of the bus line.

(http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/23167.pdf
page 83)

When the bus is stuck again you may try following:

rmmod i2c-amd756

Now lets reprogram the chipset to force 1 to the DATA line,
if the isadump will be 0x68 then the chipset has some bug
otherwise some device on the bus has the bug.

isaset -y -f 0x80c0 0x5
isaset -y -f 0x80c1 0x5
isadump -y -f 0x8000

Regards
Rudolf

Thanks,

regards
Rudolf




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