[Intel-gfx] [PATCH] drm/i915: Do not do link training fallback or prune modes for eDP

[Dhinakaran Pandiyan]

On Thursday, August 17, 2017 1:44:14 PM PDT Rodrigo Vivi wrote:
> On Thu, Aug 17, 2017 at 1:11 PM, Pandiyan, Dhinakaran
> 
> <dhinakaran.pandiyan at intel.com> wrote:
> > On Thu, 2017-08-17 at 12:46 -0700, Manasi Navare wrote:
> >> On Thu, Aug 17, 2017 at 07:01:05AM +0000, Rodrigo Vivi wrote:
> >> >    On Wed, Aug 16, 2017 at 11:51 PM Manasi Navare
> >> >    
> >> >    <[1]manasi.d.navare at intel.com> wrote:
> >> >      In case of eDP because the panel has a fixed mode we cannot
> >> >      link train fallback and prune modes since this results in
> >> >      no modes available for eDP connector.
> >> >    
> >> >    What about downclock modes?!
> >> 
> >> What are the downclock modes? We have seen an issue with pruning modes
> >> in case of eDP panel where we end up pruning the mode due to link train
> >> fallback and then we get an error saying "No modes available for the
> >> connector"
> > 
> > fwiw I've got two laptops with eDP's having more than ten modes.
> 
> those ten are probably a list of modes with scaler right?!

Yeah, Clint very graciously explained that to me after I sent the email.