Black boot screen on Installation

Hello everyone!
I have a Thinkpad E14 Gen2 with Ryzen 7 processor. I have succesfully booted with Live cd of Manjaro Cinnamon with 5.10 smth.
While the installation worked flawlessly, when I restart my machine I got the following message:
Failed to start Light Display Manager
Failed to start Load/save screen backlight brightness of backlight:acpi_video0.
Please, I am a noob regarding troubleshooting. I have installed Manjaro on several machines the past few years and this is uncommon for me.
Please help me!

For the first issue I would try to boot your live ISO and chroot into your system.

Then update it by

pacman-mirrors -f
pacman -Syyu

And reboot.

The second message most likely can be solved by the right acpi kernel paramter to be set in your /etc/default/grub file, check if you find some helpful link in the web for your specific Thinkpad.

Could be for example

Also, have a look here:

Thank you!
I will try it and I 'll get back to you!

Thank you so much for your advice which worked like a charm.
Stay safe and healthy. Thank you for your wonderful support!

1 Like

Was my pleasure!

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