On Sun, 25 Oct 2009 21:57:32 +0100[snip]
Riccardo Magliocchetti <riccardo.magliocchetti@xxxxxxxxx> wrote:
Hello,
i lost video output, screen stays black, after suspend after commit c1c7af60892070e4b82ad63bbfb95ae745056de0 "drm/i915: force mode set at lid open time".
I'm attaching my dmesg with 2.6.32-rc5 (actually
964fe080d94db82a3268443e9b9ece4c60246414), my bisect log and my
config.
git bisect response:
c1c7af60892070e4b82ad63bbfb95ae745056de0 is the first bad commit
commit c1c7af60892070e4b82ad63bbfb95ae745056de0
Author: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
Date: Thu Sep 10 15:28:03 2009 -0700
drm/i915: force mode set at lid open time
I wonder if this is the real problem... This patch introduced an issue
that was fixed by 06891e27a9b5dba5268bb80e41a283f51335afe7 that could
cause a blank screen on lid open or resume, depending on how lid events
were delivered. Should be easy enough to test though, you can remove
the whole
+ if (acpi_lid_open())
+ drm_helper_resume_force_mode(dev);
block and see if that also helps (in the current tree there's a lock
taken around the force_mode call, you'll need to remove those lines too
for testing).