On 12/11/2013 02:49 PM, Liviu Dudau wrote: > Hello, > > Prompted by a discussion on G+, here is a report of an issue I'm seeing > with mainline kernel (commit 78fd82238d0e57). > > The kernel fails to detect the DDC i2c interface (on Trimslice that's > on Tegra2 I2C-0 interface), so I'm getting no output on the HDMI That probably should be I2C-1 for HDMI; I2C-0 is likely the DVI port's DDC interface. But since you tested all ports, this isn't the cause of the problem. > U-Boot 2014.01-rc1-dirty (Nov 26 2013 - 22:29:37) Are you using an unmodified upstream U-Boot? The environment you posted doesn't match upstream's environment, and the "-dirty" implies you have some local modifications. If you break into U-Boot, can you read the EDID using the "i2c" command? In Linux, can you "i2cget" from bus 1 device 0x50 even if "i2cdetect" didn't see the EDID? Is the monitor you have plugged in known-working without any EDID-related issues? -- 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
