Bug#1008246: plymouth: Blank screen when booting with asahi linux kernel on mac book pro

[Thomas Renard]

Package: plymouth
Version: 22.02.122-1
Severity: normal

Dear Maintainer,

the plymouth splash screener switches to black screen when booting up on
a m1 mac machine with asahi linux. Unfortunatelly plymouth works fine
with Fedora Rawhide (also 22.02.122) with exactly the same kernel. So I
expect a problem with plymouth but not with the kernel.

* enable splash option in /etc/default/grub
* update-initrd
* reboot

Expected:

System starts up and switches to plymouth graphics

Actual behaviour:

System starts and blanks screen.

Kernel from

https://git.zerfleddert.de/cgi-bin/gitweb.cgi/m1-debian

around commit 764bbca1b425faeb18d975d2a22fa827250e06c7


-- System Information:
Debian Release: bookworm/sid
APT prefers testing
APT policy: (900, 'testing')
Architecture: arm64 (aarch64)

Kernel: Linux 5.17.0-rc7-asahi-next-20220310-00002-g30ce26cc6492 (SMP w/10 CPU threads)
Kernel taint flags: TAINT_CPU_OUT_OF_SPEC
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages plymouth depends on:
ii init-system-helpers 1.62
ii initramfs-tools 0.140
ii libc6 2.33-7
ii libdrm2 2.4.110-1
ii libplymouth5 22.02.122-1
ii lsb-base 11.1.0
ii systemd 250.4-1
ii udev 250.4-1

plymouth recommends no packages.

Versions of packages plymouth suggests:
ii desktop-base 11.0.3
pn plymouth-themes <none>

-- no debconf information