Olinuxino Lime A10 - Change resolution HDMI -

Embedded Linux Discussions
1

Is there a tutorial to change the hdmi resolution to 480p or 720p. With the new bullseye version I don’t see any script, and the resolution is fixed at 1080p, so it can’t work well.

2

Hi @fhersete edit extlinux.conf and add the paramter you want:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/fb/modedb.rst

video=VGA-1:1280x720@60me

Replace VGA-1 with the node name found under /sys/class/drm

change

3

Thanks Robert, but it’s for the version of the official olimex page, I don’t have extconf in boot, I can only vary with bootargs.

I have compiled your distribution with kernel 5.4-5.10 and 5.15, I got it to work, but I can’t interact with the keyboard, it doesn’t work for me, it’s a logitech k400 usb wireless. It happens to me with all 3 kernels, and I think I’ve done the step-by-step compilation correctly, I’ve already done it other times with other boards and all of them worked, except for the olimex a10.

4

You can add the video option to the bootargs variable.

Regards,

5

I wonder if the usb driver used changed? Sorry i don’t regular test the A10 family as much as i use too…

6

I have fixed it by adding in uEnv

extraargs=video=HDMI-A-1:720x480@60

Thanks very much Robert!! Greetings