Lukas Hejtmanek wrote:
drm_stub.c version 1.52 contains check whether device is AGP. I have i915 card that is PCIE and it fails to initialize i915 module. If I comment out check for AGP then everything is OK.
That's interesting. I guess the problem is that the i915 driver has DRIVER_REQUIRE_AGP set. I'm not sure what the right answer is here. Even though my change to drm_stub.c broke the Linux version, the BSD version *already* had that same check (and was therefore already broken in the same way).
I suspect we may need to change the way drm_device_is_agp works. Right now, the drm_driver::device_is_agp function can only fail a device that would have otherwise passed. Changing the return code of drm_driver::device_is_agp from meaning {"might be AGP", "abosolutely not AGP"} to a tri-state meaning {"absolutely is AGP", "might be AGP", "abosolutely not AGP"} might do the trick.
Keith, since you're the main i915 guy, what do you think? Would this bug also effect Via PCI-e chipsets with integrated graphics?
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