Thinkpad w541 with Coreboot - no graphic with nixos-plasma6-24.05.4997

Hello,
wann install NixOS with the nixos-plasma6-24.05.4997 ISO.
But there is no GUI.
Can see wayland process. Swtich with ALT+F
but not GUI.

What can I do ?

Intel VGA

00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06) (prog-if 00 [VGA controller])
DeviceName: VGA compatible controller
Subsystem: Lenovo 4th Gen Core Processor Integrated Graphics Controller
Flags: bus master, fast devsel, latency 0, IRQ 34, IOMMU group 0
Memory at 82400000 (64-bit, non-prefetchable) [size=4M]
Memory at 90000000 (64-bit, prefetchable) [size=256M]
I/O ports at 1000 [size=64]
Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
Capabilities:
Kernel driver in use: i915
Kernel modules: i915

What can I do to get the GUI ?

gnome version works

nixos-gnome-24.05.5169.dbebdd67a600-x86_64-linux.iso

Some DE/WM need newer OpenGL versions (often GL>=3.0 i think) (Hyprland for example also doesn’t run on my T400 that im typing this on) and 4th Gen only supports up to ES 2.1. You could maybe try to force LLVMpipe for software rendering (set LIBGL_ALWAYS_SOFTWARE=1 env var).