kernel: enable wide GPU compatibility (AMD, Nvidia, simpledrm, VESA)
Enable DRM drivers for maximum hardware compatibility:
- CONFIG_DRM_SIMPLEDRM=y — EFI framebuffer fallback (works on ANY UEFI machine)
- CONFIG_DRM_RADEON=y — older AMD GPUs
- CONFIG_DRM_AMDGPU=y — modern AMD GPUs
- CONFIG_DRM_NOUVEAU=y — Nvidia GPUs (open-source)
- CONFIG_DRM_VIRTIO_GPU=y — QEMU/VM testing
- CONFIG_FB_VESA=y — VESA framebuffer fallback
- loglevel=1 quiet — suppress ACPI noise on boot
The display init chain is: i915 → amdgpu → nouveau → simpledrm → fbdev.
This ensures ac-native can display on virtually any x86 machine.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>