[Bug 90963] [DP] i915:No display with Display port [drm:intel_dp_start_link_train] *ERROR* too many full retries, give up

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90963

--- Comment #73 from sassmann at redhat.com ---
(In reply to Dhinakaran Pandiyan from comment #72)
> Can you please try the patch -"Update connector status and keep aux powered
> up" I've attached?

Applied patch on drm-tip 4.13.0-rc3+.
With your patch things look a lot better now. Monitor no longer turns off when
gdm start. Switching VTs looks good as well. Locking the screen turns off the
monitor and correctly restores at wakeup.

The only thing still broken seems to be suspend/resume. On resume the display
still does not wake-up and stays in standby mode.
I'll keep my monitor in DP1.2 mode now for further testing.

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