orange pi lite 2 (H6) + samsung 32K5500 (1080/60) + Nightly images (any version from the last couple of weeks) = No signal HDMI
Share the secret - how to make it work HDMI?
orange pi one plus - a similar problem
I have noticed that my lite 2 has issues with the very old 20" samsung 1600x1200 DVI monitor-with-hdmi-cable that i use for almost all of my SBC testing - it will go black after a minute or two and not come back.
Plugged it into my 27" 4K LG monitor and it's fine.
I don't remember if i tried the old 4x3 monitor when i tried an older build of libreelec from this thread a few months ago, or if i tried an older build of armbian with it.
Maybe there's just an issue with HDMI on H6 boards in some recent kernels, or maybe always.
Conversely, raspberry pi boards can't autodetect my Waveshare 7" touchscreen (version C - genuine not clone) but all my Armbian devices that i have plugged into it don't have any issues.
Unfortunately, i know how to force a monitor resolution with raspbian but not on allwinner boards.