[Intel-gfx] [drm/i915/3.17] panic in i915_digport_work_func

[Jiri Kosina]

On Mon, 1 Sep 2014, Daniel Vetter wrote:

> > From d407c946fbf5c48f30160591f5bd71fbe158aeb4 Mon Sep 17 00:00:00 2001
> > From: Dave Airlie <airlied at redhat.com>
> > Date: Mon, 1 Sep 2014 16:58:12 +1000
> > Subject: [PATCH] drm/i915: handle G45/GM45 pulse detection connected state.
> > 
> > In the HPD pulse handler we check for long pulses if the port is actually
> > connected, however we do that for IBX, but we use the pulse handling code on
> > GM45 systems as well, so we need to use a diffent check.
> > 
> > This patch refactors the digital port connected check out of the g4x detection
> > path and reuses it in the hpd pulse path.
> > 
> > Should fix:
> > Message-ID: <1409382202.5141.36.camel at marge.simpson.net>
> > 
> > Reported-by: Mike Galbraith <umgwanakikbuti at gmail.com>
> > Signed-off-by: Dave Airlie <airlied at redhat.com>
> 
> Reviewed-by: Daniel Vetter <daniel.vetter at ffwll.ch>

I was just about to start bisecting, as my thinkpad x200s with Gen4 chip
wouldn't ocassionally boot with -rc3, but this patch seems to be the cure
for me as well.

FWIW

        Tested-by: Jiri Kosina <jkosina at suse.cz>

-- 
Jiri Kosina
SUSE Labs