On Tuesday 20 November 2012 09:37:41 Mark Zhang wrote: > Great. So this means I2C2 is used for LCD and HDMI both. While HDMI is > not plugged, the EDID of LCD will be checked out, right? Ahhh. So that's why the LCD DDC was not working during my previous tests - I had HDMI nodes in my DT as well as the HDMI cable plugged! Indeed, things seem to work as you described. I assumed the i2cmux node would set the right pin configuration according to whether we want to read the LCD or HDMI DDC, but apparently this is not totally working yet. Glad we figured it out. Adding the HDMI nodes to Ventana will probably require to fix this (along with other things, probably) first. Alex. -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html