Public bug reported:
[Impact]
On systems with Full Disk Encryption (LUKS), the Thunderbolt driver loads
from initramfs at ~T+1s and discovers the BIOS-established DP tunnel. It
polls DPRX_DONE with a 12-second timeout. Since the GPU driver (i915)
resides on the encrypted root filesystem, it cannot load until the
passphrase is entered (often 60-90s). The DPRX timeout expires and the
DP tunnel is permanently torn down. The external display remains blank
with no recovery path.
[Where]
Dell Pro Max 14 (MC14250), Intel Meteor Lake, Dell SD25TB5 TB5 Dock
** Affects: linux-oem-6.17 (Ubuntu)
Importance: Undecided
Assignee: ChunAnWu (kiya956)
Status: New
** Changed in: linux-oem-6.17 (Ubuntu)
Assignee: (unassigned) => ChunAnWu (kiya956)
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https://bugs.launchpad.net/bugs/2155096
Title:
Thunderbolt DP tunnel torn down during boot with LUKS Full Disk
Encryption
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