[REGRESSION] i915: No HDMI output with 4.4

Ville Syrjälä ville.syrjala at linux.intel.com
Thu Feb 11 09:26:39 UTC 2016


On Thu, Feb 11, 2016 at 10:54:08AM +0200, Oleksandr Natalenko wrote:
> Daniel,
> 
> I've already tried Ville's patch you've mentioned with no luck.
> 
> Kindly find unpatched v4.5-rc3 dmesg with drm debug enabled here: [1]
> 
> [1] https://gist.github.com/efb44b7c6bc325978b80

That's an IVB. So no wonder my patch doesn't help.

Can you grab another dmesg after disconnecting and reconnecting the
HDMI cable?

> 
> 11.02.2016 10:21, Daniel Vetter wrote:
> > Please boot with drm.debug=0xe and attach the dmesg. Also please test 
> > the
> > patch later on in this thread:
> > 
> > https://lkml.org/lkml/2016/2/9/587
> > 
> > Ville is working on a proper fix for this specific case. But could be 
> > that
> > you're hitting yet another issue.

-- 
Ville Syrjälä
Intel OTC


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