Default HDMI mode

ssk 2016-03-23 19:46:01 UTC #1

I have an LG HDMI monitor (24MP77), whose default native resolution is 1920x1080.

In Raspberry Pi to get the HDMI output working, I use to edit /boot/config.txt : hdmi_group=1 & hdmi_mode=4 and set the HDMI to resolution.

How can I pass similar kernel arguments in debian/linaro for the dragonboard ? Is this the solution ?
http://linux-sunxi.org/Kernel_arguments rebuilding kernel?

thanks

ndec 2016-03-24 10:48:47 UTC #2

hi,

the ‘standard’ DRM/KMS methods will work, as per

https://wiki.archlinux.org/index.php/kernel_mode_setting

especially the ‘video=xxx’ method in bootargs. You don’t need to rebuild the kernel, but simply change the bootargs.

I had started this wiki some time ago for a specific use case:

Someone should document (Akira: can you look into that?) the video=xx method. At least if you combine the archlinux link above and my wiki, you should be able to do it (the wiki has instruction to change bootargs without recompiling the kernel)

ssk 2016-03-24 13:13:25 UTC #3

Thanks @ndec for the prompt reply. Will give a try.