[Bug 110718] [CI][BAT] random tests - dmesg-warn / dmesg-fail - *ERROR* dp aux hw did not signal timeout! / failed to enable link training

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110718

Imre Deak <imre.deak at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |imre.deak at intel.com,
                   |                            |ville.syrjala at linux.intel.c
                   |                            |om

--- Comment #1 from Imre Deak <imre.deak at intel.com> ---
The timeout in the log happens on port B without eDP being enabled. There is a
known issue related to this discussed at the internal 

HSD/1607152412

ticket which provides a workaround for the issue. The new programming sequence
needed for the workaround is described at

BSpec/Index/21257

I sent the corresponding patch to trybot:
https://patchwork.freedesktop.org/patch/306251/?series=60957&rev=1

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