On Fri, 7 Mar 2008 22:37:36 +1100, Jeremy Murphy wrote: > > I'm not sure why you would expect the EDID EEPROM on the ICH7 SMBus. > > I've never seen an EDID EEPROM there. The EDID EEPROM is typically > > accessed through an I2C bus on the graphics adapter. You will need a > > driver for this. The binary nvidia X11 driver should work, the nvidiafb > > framebuffer driver should work as well (that's what I am using myself). > > After loading the driver, 2 or 3 additional I2C buses should be listed > > by "i2cdetect -l" (don't forget to load i2c-dev beforehand), and > > decode-edid.pl (or the more user-friendly ddcmon script) should find > > the EDID on one of them. > > I'm using nvidia's binary driver v169.07, and yes, the nvidia I2C buses are > there. i2cdetect -l: > > i2c-3 i2c NVIDIA i2c adapter I2C adapter > i2c-2 i2c NVIDIA i2c adapter I2C adapter > i2c-1 i2c NVIDIA i2c adapter I2C adapter > i2c-0 smbus SMBus I801 adapter at 0400 SMBus adapter > > However, decode-edid.pl and ddcmon both report that an EDID EEPROM is not > found.
Please provide the output of: i2cdetect 1 i2cdetect 2 i2cdetect 3 Either there is no EDID EEPROM connected at all (some monitors don't have them, in particular older models) or it has a format different from what the scripts expect. If anything shows up at 0x50 with i2cdetect, please provide a dump using i2cdump (rmmod eeprom first.) -- Jean Delvare _______________________________________________ i2c mailing list [email protected] http://lists.lm-sensors.org/mailman/listinfo/i2c
