[Bug 112028] (S)VGA outputs from i915 defunct after upgrade to Kernel 5.3

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=112028

Lakshmi <lakshminarayana.vudum at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Whiteboard|                            |Triaged
      i915 platform|                            |CFL

--- Comment #7 from Lakshmi <lakshminarayana.vudum at intel.com> ---
(In reply to Jiri Slaby from comment #2)
> (In reply to Jiri Slaby from comment #16)
> > > -[drm:parse_ddi_port [i915]] port A trying to use the same AUX CH (0x40) as port E, disabling port A DP support
> > > +[drm:parse_ddi_port [i915]] port E trying to use the same AUX CH (0x40) as port A, disabling port E DP support
> > 
> > So 5.3.x disables port E, 5.2.x disables port A (due to conflict).
> 
> Likely due to:
> commit 36a0f92020dc8794d3aa69b7fb4c5d2bf99b0099
> Author: Jani Nikula <jani.nikula at intel.com>
> Date:   Fri May 31 16:14:51 2019 +0300
> 
>     drm/i915/bios: make child device order the priority order

(In reply to Jiri Slaby from comment #6)
> (In reply to Jiri Slaby from comment #5)
> > (In reply to Jiri Slaby from comment #2)
> > > commit 36a0f92020dc8794d3aa69b7fb4c5d2bf99b0099
> > > Author: Jani Nikula <jani.nikula at intel.com>
> > > Date:   Fri May 31 16:14:51 2019 +0300
> > > 
> > >     drm/i915/bios: make child device order the priority order
> > 
> > Reverting the patch:
> > https://apibugzilla.suse.com/attachment.cgi?id=821977&action=diff
> 
> Correct link:
> https://bugzilla.suse.com/attachment.cgi?id=821977&action=diff
> 
> > fixes the issue.

@Jani, any comments?

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