yullaw and all others who need the hdmi_mode/hdmi_group or input-switching workarounds to get a picture after boot, can you please test with this build:
Write it to a spare SD card, don't make any other changes, and boot it - if the changes from popcornmix work as planned you should get a picture without needing any workarounds.
so long,
Hias
Using your build I'm getting a picture here at boot without any workarounds. 
Using your build I'm getting a picture here at boot without any workarounds.
Thanks for report. If anyone else can confirm it would be helpful.
The potential fix is not merged yet, and more positive reports would help it get merged.
On the LG 4k smart TV here it also produces an image straight from boot without modification. Just tested it. All regular resolutions up to 4k and refresh rates are available. Really awesome job! Hope others can confirm it works.
The fix was merged into LE11 a few hours ago and will be included in the next nightly build (20230124)
so long,
Hias
That is great! I'm curious though. What caused this issue on certain tv's?
That is great! I'm curious though. What caused this issue on certain tv's?
A tiny, not well defined, optional, bit in the HDMI protocol which we discussed about for quite a long time as it wasn't clear from the spec how it was meant to be used and how TVs should handle it.
Basically the firmware sends a "disable display" flag (set AVMUTE) before handing over to the kernel video driver, but the kernel driver didn't implement the optional set/clear AVMUTE handling and some TVs decided to stick in the "off" state. Solution then was to always send "clear AVMUTE" bit in the control packet.
so long,
Hias
Nightly 20230124 indeed works without workaround. 😎
Hi guys As mentioned in the forum answers (dtoverlay=vc4-fkms-v3d.) did work for my raspberry pi 4b while fixing the blue screen issue after reboot ,however my HDMI CEC isn't working post changing to (fkms). Any help over this would be appreciated,i am using librelec 10 i.e kodi19.5 matrix
