[x86-64] Black screen after bootsplash

    I tried installing the latest LibreELEC on my Lattepanda v1. Installing works, but actually starting it does not - both selecting the live mode from the USB boot menu as well as booting into the installed system results in a LibreELEC bootsplash, followed by a completely black screen. How do I get it to work?

    The OS should be running in the background but for some reason (usually an issue with display/GPU drivers) Kodi does not start or outputs to the wrong screen so you are left looking at the bootsplash not the home screen. If you add "ssh" to kernel boot params the daemon is forced to start on boot allowing you to connect Ethernet and SSH in to share the system log via pastekodi (share the URL generated here) so we can hopefully see what's happening. NB: Please use a current LE13 nightly image for testing.

    The bootsplash actually disappears. But I might have found a reason why this happens. I tried to set up the SBC with Archlinux instead, and noticed that launching kodi-gbm also results in a black screen there; meanwhile, launching kodi-wayland worked, but with half the image cut off, leaving it in an unusable state.

    Turns out the lattepanda advertises the onboard screen connector as a display even if there's nothing there. Disabling that display with a kernel parameter fixes kodi-wayland at least, I have not yet tried kodi-gbm again.

    The problem is: how do I set the kernel boot params on LibreELEC? I never get a chance to; there is no bootloader screen where I could intercept, nor does the installer offer me to chroot into the fresh installation to make changes before the first boot.

    Connect the installer USB to something that can edit the syslinux.cfg file in the boot partition; locate the run entry and append textmode to kernel boot params there. Boot from the USB and when prompted type run and it will boot to a text console instead of attempting to run Kodi. Connect a USB keyboard and you can check the internal storage of the board is mounted under /var/media and find the boot partition where its copy of syslinux.cfg exists; edit the file to disable the rogue display connector that Kodi is trying to use (same issue and fix as Wayland). Reboot with the installer USB installer removed and Kodi should come up. Add ssh to boot params too so that you can access the board over the network in the event there's still more digging around to be done.