Rafael J. Wysocki wrote:
On Monday 18 May 2009, Randy Dunlap wrote:
On Mon, 18 May 2009 21:01:06 +0200 Rafael J. Wysocki wrote:
Adding CCs.
On Monday 18 May 2009, you wrote:
(First post, so please CC to zorael@xxxxxxxxx in case it doesn't automatically.)
I'm trying to compile 2.6.30-rc6 to enable kernel mode-setting *per
default*, for my Intel 945GME video chipset. Alas, when compiling, it
halts with the following tidbit:
...
LD .tmp_vmlinux1
drivers/built-in.o: In function `intel_opregion_free':
/usr/src/linux/drivers/gpu/drm/i915/i915_opregion.c:422: undefined
reference to `acpi_video_exit'
drivers/built-in.o: In function `intel_opregion_init':
/usr/src/linux/drivers/gpu/drm/i915/i915_opregion.c:393: undefined
reference to `acpi_video_register'
make[1]: *** [.tmp_vmlinux1] Error 1
make[1]: Leaving directory `/usr/src/linux-2.6.29'
make: *** [debian/stamp/build/kernel] Error 2
grepping acpi_video_register recursively I see it's defined as an
empty function in ./include/acpi/video.h, and as a more proper
function in ./drivers/acpi/video.c. Does somehow setting it to use KMS
per default via CONFIG_DRM_I915_KMS=y stop it from reading those
files?
I used to run with KMS by default in the early -30rc*s, but at some
point (rc2?), it stopped compiling succesfully. If I don't enable it
per default, it *does* compile, though I don't know how to explicitly
enable it at boot-time. So I'm living without KMS for the time being.
Woe.
Anything obvious I'm doing wrong?
Len posted a patch for this. It's below.
Len, do you have this patch queued for Linus?
Ah, it's commit ecb4aed78dcf09e48c8c34c8c2fa7f5c69344be6, which went in
slightly after -rc6. So it should be fixed.
Zorael, please test the current Linus' tree.
Len's patch idea does not work for me - if ACPI is build as a module, I
have no way to force acpi-video to be built in.
And kernel with i915 built-in breaks...
So to summarize: acpi=m with i915=y is broken...
For now I am simply commenting-out the i915 acpi-video calls, but that
is not a good way...
We need to move the core acpi-video to the main kernel...
Thanks, Woody
--
Woody Suwalski, Xandros, Ottawa, Canada, 1-613-842-3498 x414
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