02-17-2018, 08:30 PM
My setup includes my Tinker Board => Denon AVR => Samsung 4k Tv.
Running latest TinkerOS 2.04.
For some reason when connecting through my Denon AVR, there is no output / intermittent output to my TV.
It works just fine when connecting directly to my TV; however i'd rather use my sound system.
It has to do with the numerous threads about how the TinkerOS has issues realizing the correct frequencies/etc for resolutions:
https://www.tinkerboarding.co.uk/forum/thread-633.html
https://tinkerboarding.co.uk/forum/thread-321.html
https://github.com/rockchip-linux/kernel/issues/10
I'd rather just disable 4k within the TinkerOS image itself, and have most/all modes 1080p and lower enabled and supported.
If at the very least I can enable and force 1080p through the boot/console (run level 3 equivalent/no X11) that would be good enough for me.
I've tried the following:
* modifying /boot/config.txt (i'm fairly certain all these options and the file itself is ignored)
* appending video=HDMI-A-1:1920x1200@60 to boot kernel args in /boot/extlinux/extlinux.conf
* recompiling rk3288-miniarm.dtb with 1080p only frequencies as described in this thread: https://tinkerboarding.co.uk/forum/thread-321.html
* Tried using fbset -fb /dev/fb0 -g 1920 1080 1920 1080 32
* anything related to X11 doesn't fit my use case since i'm not running desktop.
None of these options work at all. No matter what I try the boot console/shell *ALWAYS* tries 4k which is broken when connected through my Denon AVR.
This is really frustrating.
Anyone have any idea to force 1080p for boot console/mutli-user target (no X11)?
Either that, or fix the resolution detection problem within the kernel/dtb itself for 2.04?
Many thanks in advance!
Running latest TinkerOS 2.04.
For some reason when connecting through my Denon AVR, there is no output / intermittent output to my TV.
It works just fine when connecting directly to my TV; however i'd rather use my sound system.
It has to do with the numerous threads about how the TinkerOS has issues realizing the correct frequencies/etc for resolutions:
https://www.tinkerboarding.co.uk/forum/thread-633.html
https://tinkerboarding.co.uk/forum/thread-321.html
https://github.com/rockchip-linux/kernel/issues/10
I'd rather just disable 4k within the TinkerOS image itself, and have most/all modes 1080p and lower enabled and supported.
If at the very least I can enable and force 1080p through the boot/console (run level 3 equivalent/no X11) that would be good enough for me.
I've tried the following:
* modifying /boot/config.txt (i'm fairly certain all these options and the file itself is ignored)
* appending video=HDMI-A-1:1920x1200@60 to boot kernel args in /boot/extlinux/extlinux.conf
* recompiling rk3288-miniarm.dtb with 1080p only frequencies as described in this thread: https://tinkerboarding.co.uk/forum/thread-321.html
* Tried using fbset -fb /dev/fb0 -g 1920 1080 1920 1080 32
* anything related to X11 doesn't fit my use case since i'm not running desktop.
None of these options work at all. No matter what I try the boot console/shell *ALWAYS* tries 4k which is broken when connected through my Denon AVR.
This is really frustrating.
Anyone have any idea to force 1080p for boot console/mutli-user target (no X11)?
Either that, or fix the resolution detection problem within the kernel/dtb itself for 2.04?
Many thanks in advance!