Check with
LibreELEC-ultra:~ # grep -i edid /var/log/Xorg.0.log
[2982095.786] (**) NVIDIA(0): Option "CustomEDID" "DFP-0:/storage/.config/edid.bin.ultra2.TX-SR508_1920x1080"Sorry finally i got file appended correctly (seems a ssh problem)
How did you solve this problem you say? I got the same problem. Followed the guide, after reboot with TV off I get only black. With the TV on, and then checking the logs I see nothing about edid.
/var/log/Xorg.0.log shows me QCJF
even though my syslinux.cfg still is edited.
EDIT: Can it be that I need to edit this file instead? /flash/EFI/BOOT/syslinux.cfg
EDIT2: It was..
/Söder
I followed this guide to create custom EDID.
If I check the boot I get this:
LibreELEC:~ # grep -i edid /var/log/Xorg.0.log
[2332972.829] Kernel command line: root=/dev/ram0 rdinit=/init usbcore.autosuspend=-1 BOOT_IMAGE=/KERNEL boot=LABEL=System disk=LABEL=Storage quiet initrd=/edid.cpio drm_kms_helper.edid_firmware=HDMI-A-1:edid/edid.bin video=HDMI-A-1:D
LibreELEC:~ #I still get blank screen on resume from standby before the TV is switched on 
Any ideas?
Setup:
Libreelec 8 on 120 GB SSD
Intel Kaby Lake i3-7100, onboard GFx
Motherboard MSI B250M MORTAR Intel B25
8 GB Crucial Ballistix Sport LT DDR4
honestly I have a Doctor HDMI hardware EDID emulator too and it works great... but why to use it if SW Emulation could be done. It is somehow ridicolous that I have to link up a 80 € EDID emulator and an 40 € CEC-adapter between HTPC and AVR/TV to get basic functions working... with all the cable mess it means.