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    SubjectRe: 2.6.36-rc8 -- drivers/built-in.o: In function `nouveau_acpi_edid': (.text+0xf7c04): undefined reference to `acpi_video_get_edid'
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    On Sat, Oct 16, 2010 at 4:58 PM, Roland Dreier <rdreier@cisco.com> wrote:
    >  > drivers/built-in.o: In function `nouveau_acpi_edid':
    >  > (.text+0xf7c04): undefined reference to `acpi_video_get_edid'
    >  > make: *** [.tmp_vmlinux1] Error 1
    >
    > The problem is:
    >
    >  > CONFIG_ACPI=y
    >  > CONFIG_ACPI_VIDEO=m
    >
    > but
    >
    >  > CONFIG_DRM_NOUVEAU=y
    >
    > So the built-in nouveau code tries to reference the modular acpi video
    > code.  I'm not sure what the correct fix is... does the following make
    > things work?
    >
    >  drivers/gpu/drm/nouveau/Makefile |    2 +-
    >  1 files changed, 1 insertions(+), 1 deletions(-)
    >
    > diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile
    > index e9b06e4..4e295b5 100644
    > --- a/drivers/gpu/drm/nouveau/Makefile
    > +++ b/drivers/gpu/drm/nouveau/Makefile
    > @@ -28,6 +28,6 @@ nouveau-y := nouveau_drv.o nouveau_state.o nouveau_channel.o nouveau_mem.o \
    >  nouveau-$(CONFIG_DRM_NOUVEAU_DEBUG) += nouveau_debugfs.o
    >  nouveau-$(CONFIG_COMPAT) += nouveau_ioc32.o
    >  nouveau-$(CONFIG_DRM_NOUVEAU_BACKLIGHT) += nouveau_backlight.o
    > -nouveau-$(CONFIG_ACPI) += nouveau_acpi.o
    > +nouveau-$(CONFIG_ACPI_VIDEO) += nouveau_acpi.o
    >
    >  obj-$(CONFIG_DRM_NOUVEAU)+= nouveau.o
    >

    Hi Roland,

    I tried with your patch applied and got this:

    drivers/built-in.o: In function `load_vbios_acpi':
    nouveau_bios.c:(.text+0xa9cdf): undefined reference to
    `nouveau_acpi_rom_supported'
    nouveau_bios.c:(.text+0xa9cf4): undefined reference to
    `nouveau_acpi_get_bios_chunk'
    drivers/built-in.o: In function `nouveau_connector_detect_lvds':
    nouveau_connector.c:(.text+0xb49d4): undefined reference to `nouveau_acpi_edid'
    drivers/built-in.o: In function `nouveau_init':
    nouveau_drv.c:(.init.text+0x653e): undefined reference to
    `nouveau_register_dsm_handler'
    drivers/built-in.o: In function `nouveau_exit':
    nouveau_drv.c:(.exit.text+0x19b): undefined reference to
    `nouveau_unregister_dsm_handler'
    make: *** [.tmp_vmlinux1] Error 1

    When I set CONFIG_DRM_NOUVEAU=m rather than =y, I got this:

    ERROR: "nouveau_register_dsm_handler"
    [drivers/gpu/drm/nouveau/nouveau.ko] undefined!
    ERROR: "nouveau_acpi_rom_supported"
    [drivers/gpu/drm/nouveau/nouveau.ko] undefined!
    ERROR: "nouveau_unregister_dsm_handler"
    [drivers/gpu/drm/nouveau/nouveau.ko] undefined!
    ERROR: "nouveau_acpi_get_bios_chunk"
    [drivers/gpu/drm/nouveau/nouveau.ko] undefined!
    ERROR: "nouveau_acpi_edid" [drivers/gpu/drm/nouveau/nouveau.ko] undefined!
    --
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