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buffer increase

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Bryan Ramos 2026-04-19 20:33:11 -04:00
parent 5e659e229e
commit e7b6775506
1 changed files with 5 additions and 0 deletions
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5
system/machines/tv/hardware.nix
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@ -16,6 +16,11 @@
grub.enable = false; grub.enable = false;
generic-extlinux-compatible.enable = true; generic-extlinux-compatible.enable = true;
}; };
# vc4 needs a larger Contiguous Memory Allocator pool than the 64 MiB
# default. Without this, the GPU can't allocate framebuffers and spams
# "swiotlb buffer is full" — no video output.
kernelParams = [ "cma=256M" ];
}; };
# Pi 4 GPU acceleration. Per the NixOS wiki, two options are needed: # Pi 4 GPU acceleration. Per the NixOS wiki, two options are needed: