From: Imre Deak <imre.deak@intel.com>
To: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH] drm/i915/dp: Reset link params on connector disconnect
Date: Thu, 4 Jun 2020 22:08:58 +0300 [thread overview]
Message-ID: <20200604190858.GE15427@ideak-desk.fi.intel.com> (raw)
In-Reply-To: <20200604190140.GH6112@intel.com>
On Thu, Jun 04, 2020 at 10:01:40PM +0300, Ville Syrjälä wrote:
> [...]
> > > Then we get this hpd, in this case if we dont reset the param to max values, prev triggered modeset continues
> > > with fallback values but since connector probe doesnt happen again through IGT, it tries the same mode
> > > with fallback values and return encoder config failure.
> >
> > If the link training failed then clearly the sink didn't like us anymore
> > anyway. So feels like resetting these here is just shifting some race
> > window around a bit, but it could still fail if the sink still doesn't
> > like us.
> >
> > Would be good if someone was able to figure out why the sink goes bad in
> > the first place.
>
> Oh, and don't we now have Imre's "weird hpd happened in the middle of
> the test, don't trust the results" thing in igt?
An LG and IIyama monitor this happens on disconnect and reconnect after
waking from an idle state when modesetting them, not sure if it's the
same case.
--Imre
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next prev parent reply other threads:[~2020-06-04 19:09 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-04 0:23 [Intel-gfx] [PATCH] drm/i915/dp: Reset link params on connector disconnect Manasi Navare
2020-06-04 0:49 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for " Patchwork
2020-06-04 1:19 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork
2020-06-04 15:25 ` [Intel-gfx] [PATCH] " Ville Syrjälä
2020-06-04 18:35 ` Manasi Navare
2020-06-04 18:38 ` Ville Syrjälä
2020-06-04 18:52 ` Manasi Navare
2020-06-04 18:58 ` Ville Syrjälä
2020-06-04 19:01 ` Ville Syrjälä
2020-06-04 19:08 ` Imre Deak [this message]
2020-06-04 19:20 ` Manasi Navare
2020-06-04 19:23 ` Imre Deak
2020-06-04 19:40 ` Manasi Navare
2020-06-04 19:49 ` Imre Deak
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