Re: i915 drm patches in LTS 4.4.x ?

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On Tue, 2016-07-19 at 15:06 -0700, gregkh@xxxxxxxxxxxxxxxxxxx wrote:
> On Mon, Jul 18, 2016 at 11:41:02PM +0000, Joakim Tjernlund wrote:
> > 
> > On Mon, 2016-07-18 at 13:52 -0700, Greg KH wrote:
> > > 
> > > On Mon, Jul 18, 2016 at 02:21:45PM +0000, Joakim Tjernlund wrote:
> > > > 
> > > > 
> > > > I notice there are no I915 DRM patches in going into
> > > > 4.4.x for a while.
> > > 
> > > Define "a while".
> > 
> > Not since 4.4.13, may I missed some path though.
> > 
> > > 
> > > 
> > > > 
> > > > 
> > > > I wonder if the inflow of such patches has stopped or if they are just
> > > > batched/saved for later?
> > > 
> > > I only see 5 pending i915 patches in my stable queue at the moment, not
> > 
> > I have a hard time seeing any i915 patches in your queue, must get glasses :)
> > 
> > > 
> > > many at all.  Was there something specific you were looking for that did
> > > not get merged?
> > >  
> > 
> > We have some HP Broadwell laptops which has a problem with external monitors,
> > they go blank/off intermittently. I think/hope this has been fixed upstream by now but I not sure.
> > One path caught my eye though was this:
> >   drm/i915: Revert DisplayPort fast link training feature
> > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm/i915?id=34511dce4b3
> > 5685d3988d5c8b100d11a068db5bd
> > 
> > Is that one in your queue?
> 
> Yes it is, I have not gotten to that one yet.
> 

I did a quick backport of above patch for 4.4 and had a guy test it his laptop and it did
fix the problem :)

    Jocke--
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