[Intel-gfx] [PATCH] drm/i915/cnp: Ignore VBT request for know invalid DDC pin.

[Ville Syrjälä]

On Wed, Jan 24, 2018 at 12:03:12PM +0200, Jani Nikula wrote:
> On Wed, 24 Jan 2018, Kai Heng Feng <kai.heng.feng at canonical.com> wrote:
> > Hi,
> >
> >> On 24 Jan 2018, at 5:25 PM, Jani Nikula <jani.nikula at linux.intel.com> wrote:
> >> A bit too fast IMO. The bug report doesn't include the vbt dump which
> >> you should *always* look at before making workarounds for vbt.
> >
> > I didn’t have access to the machine in question until now, I can provide
> > VBT dump as well as i915_opregion requested by Ville.
> >
> > But how do I make a VBT dump?
> 
> Copy /sys/kernel/debug/dri/0/i915_vbt
> 
> I don't think the opregion will be necessary, I think Ville asks for it
> for the vbt, which on most platforms is contained in the opregion.

Old habits...

-- 
Ville Syrjälä
Intel OTC