[Bug 105716] External display disconnected with docking station Dell TB16

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105716

--- Comment #1 from Mario Limonciello <mario_limonciello at dell.com> ---
As you know the TB16 is a Thunderbolt dock.  I don't believe the DP tunnels are
initialized unless the dock has been authorized.

Can you please confirm what security level you have Thunderbolt configured in
BIOS setup?  The default is "user security" (SL1).

If you are booting in SL1, please try to reconfigure to SL0 or SL3 and try
again. If it works then I don't believe this is a problem in the DRM stack but
rather in the userspace stack that is managing transferring boot ACL's.

FYI there is a pull request being discussed related to this in the Intel
thunderbolt tools project on Github.
https://github.com/intel/thunderbolt-software-user-space/pull/59

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