1111Windows

Hello @1111Windows! Having a portrait HDMI display is rather unusual. Normally, one can buy landscape HDMI displays and simply rotate them via software or video card hardware. However: if reading out the EDID via I2C / HDMI cable does not work correctly, the HDMI display driver may simply fallback to 1920x1080@60 using the compiled-in EDID. You can try to get the EDID from the display with the apt install read-edid tool. If I recall correctly, one can provide a custom EDID binary as file to the kernel via some boot cmd parameter, see https://www.marcusfolkesson.se/blog/custom-edid-in-linux/ for details. Simply configure some mode via video= when the mode is not available in the EDID will not work (as you already found out). It should also be possible to add a custom modeline, but this is deep dive as stated here: https://nyanpasu64.gitlab.io/blog/crt-modeline-cvt-interlacing HTH // Sven-Ola 

Hey! Got it up and running - I have an Armbian SD card image based on the source trees found on https://github.com/orangepi-xunlong. Since I am a newbie to Armbian, please accept my apologies for beginner errors. Here's what I currently got on my UART:
 
root@orangepirv2:~# uname -a Linux orangepirv2 6.6.63-current-ky #1 SMP PREEMPT Tue Mar 18 02:29:27 UTC 2025 riscv64 GNU/Linux root@orangepirv2:~# cat /etc/os-release PRETTY_NAME="Armbian-unofficial 26.02.0-trunk trixie" NAME="Debian GNU/Linux" VERSION_ID="13" VERSION="13 (trixie)" VERSION_CODENAME=trixie DEBIAN_VERSION_FULL=13.2 ID=debian HOME_URL="https://www.armbian.com/" SUPPORT_URL="https://forum.armbian.com" BUG_REPORT_URL="https://www.armbian.com/bugs" ARMBIAN_PRETTY_NAME="Armbian-unofficial 26.02.0-trunk trixie"  
This is not ready for prime time now. Needs a bit cleanup b/c I pulled in binaries and private project stuff not meant for armbian-build. Currently resides in this fork https://github.com/sven-ola/armbian-build/tree/orangepi-rv2. If you want to give it a try: it's compile.sh opirv2 after checkout. I've also managed to boot from the top 2230 M.2 SSD but this is also handmade (I'm pretty sure there is a script in here that copies the SD card boot blobs to SPI flash, will try before doing the MR).
 
Best // Sven-Ola