On Mon, 23 Aug 2010 11:01:45 -0600 Jonathan Corbet corbet@lwn.net wrote:
So I decided to fire up -rc2 today to see what would happen...the results are best described by the attached images. Something is clearly scrambled between my hardware and the i915 driver. Display with X is hosed, but things go weird before X gets a chance to run (it is worth noting that the initial output from the kernel is legible).
I went ahead and bisected the problem, which was added between -rc1 and -rc2. The end result is this:
32aad86fe88e7323d4fc5e9e423abcee0d55a03d is the first bad commit commit 32aad86fe88e7323d4fc5e9e423abcee0d55a03d Author: Chris Wilson chris@chris-wilson.co.uk Date: Wed Aug 4 13:50:25 2010 +0100
drm/i915/sdvo: Propagate errors from reading/writing control bus.
Signed-off-by: Chris Wilson chris@chris-wilson.co.uk Signed-off-by: Eric Anholt eric@anholt.net
I don't know the driver or the hardware and can't begin to guess what went wrong in that patch, but, hopefully, the information is useful to somebody. Please let me know if there's anything else I can do to help track this down.
Thanks,
jon