In the development version of LFS, the kernel has been bumped up to 4.4.4. This has made a small change in frame buffer settings:

https://lists.freedesktop.org/archives/intel-gfx/2015-June/069292.html

In the development version of BLFS, the Xorg Drivers section shows setting CONFIG_DRM_I915_KMS. This is no longer a valid setting in the 4.4.4 kernel, as the i915 driver will only load if modesetting is enabled. I have confirmed that it has been removed from the kernel config in 4.4.4

I also think it might be worth mentioning that these settings depend on PCI and AGP being enabled. On most machines with integrated Intel graphics, PCI is pretty certain to already be enabled, but I would have assumed that AGP went out with the passenger pigeon and failed to set it. I'm trying to figure out the kernel docs, as the option I915 apparently sets AGP_INTEL=y (convenient). Still scratching my head over this syntax re: AGP:

"Depends on: HAS_IOMEM [=y] && DRM [=y] && X86 [=y] && PCI [=y] && (AGP [=y] || AGP [=y]=n)"

Does that mean "don't care" or "preference for [y] but [n] will work, or "if you set it [n] I'm gonna change it to [y]"?

Victor Wren
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