On Wed, 21 Feb 2007 11:03:07 -0500, Chuck Ebbert wrote: > Jean Delvare wrote: > > Can you try to load the i2c-dev driver, then run the following commands > > and report the results: > > $ i2cdetect -l > > For each bus listed: > > $ i2cdetect N > > FWIW it's really an ATIIXP chipset, but supposedly PIIX4 compatible: > > # i2cdetect -l > i2c-0 smbus SMBus PIIX4 adapter at 8400 Non-I2C SMBus adapter No i2c_ec. Maybe your distribution is loading it by default for everyone then. Either way, it means you can forget right away about sbs, if i2c_ec didn't register a device, sbs cannot be used. > # i2cdetect 0 > WARNING! This program can confuse your I2C bus, cause data loss and worse! > I will probe file /dev/i2c-0. > I will probe address range 0x03-0x77. > Continue? [Y/n] y > 0 1 2 3 4 5 6 7 8 9 a b c d e f > 00: XX XX XX XX XX XX XX XX XX XX XX XX XX > 10: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > 20: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > 30: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > 40: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX > 50: 50 51 XX XX XX XX XX XX XX XX XX XX XX XX XX XX > 60: XX XX XX XX XX XX XX XX XX 69 XX XX XX XX XX XX > 70: XX XX XX XX XX XX XX XX Only a couple EEPROMs and a clock chip on your SMBus, it's very unlikely that ACPI accesses this at all. So I'd be surprised that i2c-piix4 is causing any trouble. This leaves asus_acpi as the only candidate? Better unload _all_ the drivers you consider as suspects, and see if it changes anything. I guess not. -- Jean Delvare