Project

General

Profile

3.1 vs 3.2 Kernel MityARM-335x Dev Kit HDMI not working consistently

Added by Alexander Block about 10 years ago

This is being posted on behalf of a customer.

The HDMI output of MityARM-335x development kit with latest image (kernel 3.2) doesn’t work, but old image works fine (kernel 3.1). If I break boot process and manually initialize  the HDMI chip (i2c mw 38 8 3d ; i2c mw 38 33 0) the output works fine. The uenv.txt files for old and newest images almost the same. Could you tell me how to fix it.

Thank you.


Replies (2)

RE: 3.1 vs 3.2 Kernel MityARM-335x Dev Kit HDMI not working consistently - Added by Jonathan Cormier about 10 years ago

Environment variable can be setup like:

config_dvi=i2c dev 1;i2c mw 38 8 3d; i2c mw 38 33 0

and can be run from the bootcmd

bootcmd=run config_dvi;run mmc_boot
    (1-2/2)
    Go to top
    Add picture from clipboard (Maximum size: 1 GB)