Igel

Success! With u-boot from 5.31, the CB2 boots without any HDMI/TV attached. I am running the 4.14.3 kernel which you provided earlier. Anything I can provide to solve the (to me) mystery? Thanks, Igor! And not just for this solution, but for Armbian in general!

I tested with the 4.14.3 kernel and device tree provided by Igor. The issue still exists with exactly the same behavior: CB2 won't boot without HDMI cable and TV attached at boot time. If a cable/TV is attached, it will again boot just fine. armbianmonitor -u output with HDMI attached: http://sprunge.us/fTOX Contents of armbianEnv.txt verbosity=7 console=both disp_mode=1920x1080p60 rootdev=UUID=16d0ef66-77a0-4af0-8b91-96dbe7c237dd rootfstype=ext4 I am really wild guessing here, but could this have been introduced by the recent HDMI CEC commit to the 4.14 kernel? I'm not fully clear if this actually happened for A20 boards. On http://linux-sunxi.org/Linux_mainlining_effort the status matrix says so, the individual section for the 4.14 doesn't mention it for A20 specifically. But obviously, there is a lot going on around HDMI for those boards, also for 4.15. My personal workaround for the time being: Boot with HDMI/TV attached. There seems to be no issue if you remove the HDMI cable after the boot sequence.

Igor, I will give the 4.14.y kernel a try tonight. Just to make sure: - Copy the files to the cubieboard - dpkg -i for both files - restart and hope for the best Correct?

Hi, same problem here. Cubieboard 2 with Armbian in headless mode as Nextcloud and VPN server with an external harddisk attached (but booting from SD card). After an upgrade yesterday to 5.36, mine won't boot either. After finding this thread, I inserted an HDMI cable into a TV in stand by and it boots again. Thanks, znoxx, for finding this out! Here is the the full dmesg with HDMI cable and TV in stand-by: https://igel.mooo.com/nextcloud/s/7auVF2IfVXECk4X Obviously, I don't have one where it doesn't boot as I don't have means to access it. But happy to help if you tell me how to. I also have restricted access to the board, but should be able to provide additional info during CET evenings.