make oldconfig from -git2 to -git3 doesn't build i915.ko unless
one has CONFIG_FB enabled; this causes /dev/dri/card0 to
be missing, and DRI disabled from within X.
Do I now (2.6.28-git3+) need CONFIG_FB to enable i915 DRM ?
Thanks,
--alessandro
"Sun keeps rising in the west / I keep on waking fully confused"
(The Replacements, "Within Your Reach")
On Wed, 2008-12-31 at 19:55 +0100, Alessandro Suardi wrote:
> make oldconfig from -git2 to -git3 doesn't build i915.ko unless
> one has CONFIG_FB enabled; this causes /dev/dri/card0 to
> be missing, and DRI disabled from within X.
>
> Do I now (2.6.28-git3+) need CONFIG_FB to enable i915 DRM ?
Yes, the i915 driver now relies on fb code, though the new features are
runtime optional. I may have noviced the Kconfig bits -- my intention
was "If you select I915, you also get all the CONFIG_FB-related bits
necessary".
config DRM_I915
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
depends on FB
tristate "i915 driver"
I'm guessing that that "depends on FB" wants to be "select FB".
--
Eric Anholt
[email protected] [email protected]
On Fri, Jan 02, 2009 at 02:50:08PM -0800, Eric Anholt wrote:
> On Wed, 2008-12-31 at 19:55 +0100, Alessandro Suardi wrote:
> > make oldconfig from -git2 to -git3 doesn't build i915.ko unless
> > one has CONFIG_FB enabled; this causes /dev/dri/card0 to
> > be missing, and DRI disabled from within X.
> >
> > Do I now (2.6.28-git3+) need CONFIG_FB to enable i915 DRM ?
>
> Yes, the i915 driver now relies on fb code, though the new features are
> runtime optional. I may have noviced the Kconfig bits -- my intention
> was "If you select I915, you also get all the CONFIG_FB-related bits
> necessary".
>
> config DRM_I915
> select FB_CFB_FILLRECT
> select FB_CFB_COPYAREA
> select FB_CFB_IMAGEBLIT
> depends on FB
> tristate "i915 driver"
>
> I'm guessing that that "depends on FB" wants to be "select FB".
No - that would not fly...
You somehow need to educate the people that want to enable DRM_I915 that
they cannot do so before they enable framebuffer support.
When you consider using select on a symbol that has a prompt
you have a good sign that you do something wrong.
Sam