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

Jani Nikula jani.nikula at linux.intel.com
Wed Jan 24 10:03:12 UTC 2018


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.

BR,
Jani.


>
> Kai-Heng 
>
>> 
>> -- 
>> Jani Nikula, Intel Open Source Technology Center
>

-- 
Jani Nikula, Intel Open Source Technology Center


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