[Bug 89554] [SKL Bisected] eDP can not be lighted up after entering kernel

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89554

--- Comment #40 from Sonika <sonika.jindal at intel.com> ---
(In reply to Jesse Barnes from comment #39)
> I guess this isn't as simple as trying other vswing params, since it affects
> the DDI side too.  But ideally, if we failed to train like we see here, we'd
> try a higher set of vswing values on the DDI side and restart DP training. 
> How feasible is that?  If Windows does that, we'll probably see busted VBTs
> in the wild too, so making our re-training code more robust would be helpful.

The windows too don't try to retrain with different set of values.
Since any set of values cant guarantee working of all the panels universally,
the end system integrators are expected to try both the settings in VBT.
This suggestion of retraining with higher/lower values came up earlier too.
We can give it a try.

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