Chris Wilson schrieb:
On Fri, 04 Mar 2011 22:09:42 +0100, Robert Kaiser<[email protected]> wrote:
Chris Wilson schrieb:
Let's start by looking at the dmesg and Xorg.log and then determine what's
wrong. If you add drm.debug=0xe to your grub kernel parameters, so much
the better.
OK, I launched with that parameter and found by logging in from my N900
a way to drop dmesg into a file and take a copy of Xorg.0.log, so here
they are in an attachment.
Just if you might need it, when this ran, the newer 1920x1080 monitor
was plugged in on the DVI port and I think I had the HDMI one not
plugged in at all.
This is the cause of the trouble:
[ 3.042320] i915 GPIOB: SDA stuck high!
[ 3.045553] i915 GPIOA: SDA stuck low!
[ 3.045625] i915 GPIOC: SDA stuck high!
[ 3.049540] i915 GPIOD: SDA stuck low!
[ 3.049612] i915 GPIOE: SDA stuck high!
[ 3.049694] i915 GPIOF: SDA stuck high!
First time I've ever seen that, though that is maybe because it is in a
non-default debugging path.
However, failing the i2c bitbanging adapter being created, we would be
using the GMBUS interface. That appears to be failing as well. (Not too
surprising since it uses the same ports internally.)
Not sure how to proceed, maybe someone else has a better idea?
Any update? I just have changed to a different DH67CL board (now with
"B3 stepping") and I'm running on 2.6.29-rc4 but the symptoms stay the
same (didn't create another debug log to verify the exact error though).
I doubt that two board would have the same hardware error to cause that
and I also doubt that both my screens are busted (esp. as one works with
this board with vesafb/nomodeset=1 mode at least), so I suspect there
really is something in the drivers that goes wrong.
It's a bit disappointing that with an all-Intel solution I end up like
that, has anyone of you guys tried a DH67CL + i7-2600 yourself?
I really hope you/we can find a solution to this!
Robert Kaiser
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