[PROBLEM] Xbian update package breaks HDMI-output

[jakenl]

I kept on searching for reasons why this update disables the HDMI output and I came across this check:

Code:

xbian@xbian ~ $ tvservice -s
state 0x40000 [NTSC 4:3], 720x480 @ 60.00Hz, interlaced
xbian@xbian ~ $ tvservice -m CEA
Group CEA has 0 modes:
xbian@xbian ~ $ tvservice -m DMT
Group DMT has 0 modes:

Xbian doesn't detect the HDMI device (Onkyo audio receiver) anymore, no matter if it is on or off. This has never before been an issue, since the receivers supports 'pass through' for HDMI. And again, flashing an image back from 2 days ago, will solve the problem until I update again.

Was there a kernel update with the latest xbian updates? Here I find a lot of users that experience similar problem with loosing HDMI output after an update: https://github.com/raspberrypi/linux/issues/3081

Current kernel installed:

Code:

xbian@xbian ~ $ uname -a
Linux xbian 4.19.75+ #1 SMP PREEMPT Tue Sep 24 14:59:43 CEST 2019 armv7l GNU/Linux

Should I revert back to an older kernel?
Does that have a disavantage in compare to the latest kernel?

In the mean time I found this thread about changing the kernel: http://forum.xbian.org/thread-4029.html I successfully reverted back to 4.19.72 and .68. However, none of those gave me my HDMI output back.

This topic mentiones even a more specific set of parameters that cause the no HDMI: https://www.raspberrypi.org/forums/viewtopic.php?t=245554 boot from USB, Debian Stretch (Buster seems to be fine)

I tried suggestions like adding the following to config.txt:
hdmi_force_hotplug=1
hdmi_ignore_edid = 0xa5000080

Unfortunately without success