blackscreen after update (manjaro, fedora 38)

[anperus]

After the update, fedora 38 and manjaro linux are loaded with a black screen. Are there quick solutions to the problem ?

[anperus]

workaround for fedora 38:
download old firmware amd-gpu-firmware-20230515-150.fc38.noarch.rpm from https://koji.fedoraproject.org/koji/buildinfo?buildID=2201258
install
sudo rpm -Uvh --oldpackage amd-gpu-firmware-20230515-150.fc38.noarch.rpm
update initramfs
sudo dracut --regenerate-all --force

for ubuntu 23.04

list all firmware version
sudo apt-cache showpkg linux-firmware - lists all available versions.
sudo apt-cache policy linux-firmware - shows just the installed and available versions.
sudo apt list -a linux-firmware - to find out what versions are available.

install old firmware
sudo apt-get install linux-firmware=20230323.gitbcdcfbcf-0ubuntu1.2
or
sudo apt-get -t=20230323.gitbcdcfbcf-0ubuntu1.2 install install linux-firmware

"holds" the package at the current version, preventing automatic upgrades.
sudo apt-mark hold linux-firmware

update linux-firmware in all initramfs
sudo update-initramfs -u -k all