Custom EDID tutorial Librelec 12 syslinux.cfg or extlinux.conf missing in

Dutch87 · June 9, 2024 at 12:00 PM

Dear people,

I upgraded my raspberry pi 3 with a pi 4 for KODI. For me its important to have persistent video out even after power failure or reboot. Modern screens only give edid when on and lose it when turned off, go in powersave or even change the HDMI input. I understood this is nowadays done like this instead of putting it so simply in the bootconfig file,

https://wiki.libreelec.tv/configuration/edid#generic-x86_64

When doing this tutorial it seems the Libreelec 12 on a raspberry pi 3 and 4 do not have this
/flash/syslinux.cfg or

/flash/extlinux.conf

Does it have a new location or is everything changed again in version 12? Did I do something wrong?

Thanks!

**chewitt** · June 9, 2024 at 12:08 PM

Nothing changed and "getedid create" still works the same as the last 5+ years. RPi boards store boot params in /flash/cmdline.txt.

Dutch87 · June 9, 2024 at 12:17 PM

Thanks for the fast respons! So I should put it in /flash/cmdline.txt instead of /flash/syslinux.cfg or /flash/extlinux.conf?

My point is that the tutorial specifically states /flash/syslinux.cfg or /flash/extlinux.conf and these files don't seen to excist...

/run/kernel-overlays/firmware/edid/edid/bin was succesfully created

So I opened /flash/cmdline.txt and it shows the line
boot=UUID=xxxxx disk=UUID=xxxxx quiet console=tty0

But the APPEND is missing. Should I put APPEND in front?

The tutorial shows this as how it should look:
APPEND boot=LABEL=System disk=LABEL=Storage ssh quiet initrd=/edid.cpio drm.edid_firmware=edid/edid.bin video=HDMI-A-1:D

I guess the tutorial has to be updated to show the /flash/cmdline.txt for rapsbery pi's so peope like me can actually follow the tutorial and not have to ask questions...?

Dutch87 · June 9, 2024 at 12:53 PM

And the error [ File '/flash/cmdline.txt' is unwritable ]

**chewitt** · June 9, 2024 at 1:06 PM

Code

mount -o remount,rw /flash

Or just run "getedid create" as previously instructed and it'll do everything for you.

Dutch87 · June 9, 2024 at 1:34 PM

Thanks!

I did: mount -o remount,rw /flash but no syslinux.cfg or extlinux.conf is in the flash folder...

getedit create gives the error: -sh: getedit: not found
I'm using the latest Libreelec on both a raspberry pi 4 and 3...

What to do?

**chewitt** · June 9, 2024 at 1:56 PM

Typo .. "getedid" not "getedit" .. the wiki article is still correct, and cmdline.txt is present (or the board won't boot).

Dutch87 · June 9, 2024 at 2:09 PM

How silly... sorry

I did the command but still I can not see the /flash/syslinux.cfg or /flash/extlinux.conf files...

getedid create
successfully installed edid override for HDMI-A-1

Does this mean it is done?

**chewitt** · June 9, 2024 at 2:18 PM

Quote from Dutch87

I did the command but still I can not see the /flash/syslinux.cfg or /flash/extlinux.conf files...

because RPi boards use cmdline.txt .. as written (twice) already.

Dutch87 · June 9, 2024 at 2:39 PM

Sorry, I'm to blame, I read:

Raspberry Pi

The getedid script can be used as described for Generic x86_64.
And started doing the commands that were put for Intel seing the getedid as an introduction...

Thanks and sorry!