<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - External display disconnected with docking station Dell TB16" href="https://bugs.freedesktop.org/show_bug.cgi?id=105716#c1">Comment # 1</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - External display disconnected with docking station Dell TB16" href="https://bugs.freedesktop.org/show_bug.cgi?id=105716">bug 105716</a> from <a class="email" href="mailto:mario_limonciello@dell.com" title="Mario Limonciello <mario_limonciello@dell.com>"> Mario Limonciello</a> <pre>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. <a href="https://github.com/intel/thunderbolt-software-user-space/pull/59">https://github.com/intel/thunderbolt-software-user-space/pull/59</a></pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>