Bug#680737: linux-image-3.2.0-2-amd64: Intel i915: black display after boot

[Nathan Schulte <nmschulte@gmail.com>]

On Tue, Jan 8, 2013 at 1:52 PM, Julien Cristau <jcristau@debian.org> wrote:
> Thanks.  That seems to detect the SVIDEO as consistently disconnected,
> so I don't know why forcing it off makes a difference :/

Attached is the dmesg with drm.debug=6 and video=SVIDEO-1:d

It's interesting that the original dmesg contains these lines, but
perhaps they're to be expected as part of the procedure to detect a
display on the S-Video connector.

[   12.676051] [drm:intel_tv_detect_type], TV detected: c00c7, 7f0000aa
[   12.676059] [drm:intel_tv_detect_type], Unrecognised TV connection

Also, the attached dmesg has this irq output, whereas the initial one does not.

13.540192] [drm:i915_driver_irq_handler], pipe B underrun

I don't know anything about these codes; I couldn't even find
information about the video= options supported.  Any ideas on where I
can look to help?

--
Nate