Unable to use NVIDIA proprietary driver with Debian Bookworm Xfce

I tried to do a fresh install of a Debian Bookworm on an Asus TUF Gaming A15 RTX 4070 (NVIDIA Optimus), model FA507XI with an integrated AMD Ryzen 9 7940HS. The installation of Debian went without issue. I use Xfce as the DE. SecureBoot and Fastboot are disabled. A first issue with the nouveau driver: black screen after the GRUB menu. However using nomodeset allows me to start the computer and log in. Afterwards I follow the instructions in the Debian wiki , That is: * First install linux-headers-amd64 * Then install nvidia-driver-full and firmware-misc-nonfree * Actually it says nvidia-driver but I need the additional packages from nvidia-driver-full And from there, nothing goes right. * If I use nomodeset, LightDM fails to start * If I use acpi=off, LightDM starts but I have no keyboard nor trackpad * If I use nothing, I have a black screen after the GRUB menu, the same as with the nouveau driver What am I missing? I tried solutions here and there like using the kernel and NVIDIA driver from backports, other GRUB options, in vain. I don't know where to start to do a correct debug as well. I already managed to make it work on the same computer with a Debian Sid install, alas I fail to remember how! --- Messages shown before the black screen freeze:

ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.GPP2.WWAN], AE_NOT_FOUND (20220331/dswload2-162)
ACPI Error: AE_NOT_FOUND, During name lookup/catalog (20220331/psobject-220)
ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.GPP2.WWAN], AE_NOT_FOUND (20220331/dswload2-162)
ACPI Error: AE_NOT_FOUND, During name lookup/catalog (20220331/psobject-220)
ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.GPP5.RTL8], AE_NOT_FOUND (20220331/dswload2-162)
ACPI Error: AE_NOT_FOUND, During name lookup/catalog (20220331/psobject-220)
ACPI BIOS Error bug): Failure creating named object [\_SB.PCI0.GPP6.WLAN._S0W], AE_ALREADY_EXISTS (20220331/dswload2-326)
ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20220331/psobject-220)
ACPI BIOS Error (bug): Could not resolve symbol [\_TZ.THRM._SCP.CTYP], AE_NOT_FOUND (20220331/psargs-332)
ACPI Error: Aborting method \_TZ.THRM._SCP due to previous error (AE_NOT_FOUND) (20220331/psparse-529)

nouveau 0000:01:00.0: unknown chipset (196000a1)
amdgpu 0000:65:00.0: firmware: failed to load amdgpu/gc_11_0_1_mes_2.bin (-2)
firmware_class: See https://wiki.debian.org/Firmware  for information about missing firmware
amdgpu 0000:65:00.0: firmware: failed to load amdgpu/gc_11_0_1_mes_2.bin (-2)

--- **The solution:** Debian Bookworm 12.9 is too old for the Radeon 780M iGPU. Upgrading firmware-amd-graphics from the bookworm-backports fixed the issue.