05-07-2016, 02:40 PM
I just released a new Ubuntu Xenial image (20160507-1) which has the Kernel and tools to read output_mode from uEnv.txt pre-installed.
When you flash this image, modify uEnv.txt on the first partition by appending "optargs=disp.screen0_output_mode=720p60" at the end as new line. This will switch the HDMI resolution to 1280x720p at 60Hz during boot.
To download of the Ubuntu Xenial image see: http://forum.pine64.org/showthread.php?tid=376
When you flash this image, modify uEnv.txt on the first partition by appending "optargs=disp.screen0_output_mode=720p60" at the end as new line. This will switch the HDMI resolution to 1280x720p at 60Hz during boot.
To download of the Ubuntu Xenial image see: http://forum.pine64.org/showthread.php?tid=376