> If I understand you properly, it results in a blank screen if the
> monitor is connected, but the system is still responsive?
Yes. Similar to (the other) Peter's findings, the system is fully
responsive, it's just that the monitor is displaying a black screen.
Meanwhile I stumbled upon another detail: when the problem is manifest,
the monitor's LED displaying whether a signal is available keeps shining
permanently. I does not start flashing as it does when an attached
computer is switched off.
> If so, it's a very different problem than the link you provided, since
> it was occurring when no monitor was connected and resulted in a total
> system hang.
I didn't follow up things too closely. But I remember very well that I
stumbled upon that thread "Linux 5.16.3 breaks headless Raspberry Pi 3
boot, again" while I was facing the exact same problem we're discussing
right now. Also, some findings in the Arch Linux ARM forums were similar
then [1].
The problem did disappear in 5.16.7 when some offending commit was reverted.
> I tested on 5.18 on my 3B and it works well. Could you paste your kernel
> configuration and config.txt somewhere?
Just done in a Mail which was supposed to respond to Stefan's first one,
which went wrong. (As Stefan isn't subscribed his mail was lacking the
usual headers like "In-Reply-to". So I started editing by hitting the
link on top of [2]. But this didn't work.)
[1] https://archlinuxarm.org/forum/viewtopic.php?f=57&t=15842
[2] https://lists.freedesktop.org/archives/dri-devel/2022-June/357819.html
