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SubjectRe: nouveau driver fails to build
On 11/23/2012 04:31:19 PM, Paul Bolle wrote:
> On Fri, 2012-11-23 at 15:42 +0100, Helmut Jarausch wrote:
> > with 3.7_rc6 and
> >
> > CONFIG_ACPI_VIDEO=m
> > CONFIG_DRM=y
> > CONFIG_DRM_KMS_HELPER=y
> > CONFIG_DRM_TTM=y
> > CONFIG_DRM_NOUVEAU=y
> > CONFIG_NOUVEAU_DEBUG=5
> > CONFIG_NOUVEAU_DEBUG_DEFAULT=3
> > CONFIG_DRM_NOUVEAU_BACKLIGHT=y
> >
> > with/ without
> > CONFIG_DRM_LOAD_EDID_FIRMWARE=y
> >
> >
> > The kernel fails to build with
> > drivers/built-in.o: In function `nouveau_acpi_edid':
> > (.text+0x12bf21): undefined reference to `acpi_video_get_edid'
> >
> >
> > What am I missing?
>
> I'd guess it should build (at least without this error) with
> CONFIG_ACPI_VIDEO=y. Is that correct?

Yes, but this is very unnatural.

To get CONFIG_ACPI_VIDEO=y I need to have VIDEO_OUTPUT_CONTROL=y
for which I have to select the Intel GMA500 Stub Driver although I don't
have such a device and therefore don't need that driver.
Furthermore, I had to chase through quite some flags to find this.

If it's not a bug, it's surprising, at least.

Thanks,
Helmut.



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