Public bug reported: [Impact]
[Fix] Intel submit a patch to fix this issue https://lore.kernel.org/all/[email protected]/ This patch is included in linux-next 06a691f0e7d0 drm/i915/dp_mst: Fix check for FEC support for an uncompressed stream To resolve the conflicts, cherry picked 2 more commits from linux-next b762ae48293e drm/i915/dp_mst: Reuse the DP-SST helper function to compute FEC config 69df31263bca drm/i915/dp: Ensure the FEC state stays disabled for UHBR links [Test] 1. Connect three external monitor to dock WD22TB4 2. Connect dock to system 3. Do unplug and plug serval times, the monitors should be recognized and work well. [Where problems could occur] ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Affects: linux-oem-6.14 (Ubuntu) Importance: Undecided Status: New ** Affects: linux-oem-6.17 (Ubuntu) Importance: Undecided Status: New ** Affects: linux (Ubuntu Noble) Importance: Undecided Status: New ** Affects: linux-oem-6.14 (Ubuntu Noble) Importance: Undecided Assignee: AceLan Kao (acelankao) Status: In Progress ** Affects: linux-oem-6.17 (Ubuntu Noble) Importance: Undecided Assignee: AceLan Kao (acelankao) Status: In Progress ** Affects: linux (Ubuntu Plucky) Importance: Undecided Status: New ** Affects: linux-oem-6.14 (Ubuntu Plucky) Importance: Undecided Status: Invalid ** Affects: linux-oem-6.17 (Ubuntu Plucky) Importance: Undecided Status: Invalid ** Affects: linux (Ubuntu Questing) Importance: Undecided Status: New ** Affects: linux-oem-6.14 (Ubuntu Questing) Importance: Undecided Status: Invalid ** Affects: linux-oem-6.17 (Ubuntu Questing) Importance: Undecided Status: Invalid ** Also affects: linux-oem-6.14 (Ubuntu) Importance: Undecided Status: New ** Also affects: linux-oem-6.17 (Ubuntu) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Questing) Importance: Undecided Status: New ** Also affects: linux-oem-6.14 (Ubuntu Questing) Importance: Undecided Status: New ** Also affects: linux-oem-6.17 (Ubuntu Questing) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Noble) Importance: Undecided Status: New ** Also affects: linux-oem-6.14 (Ubuntu Noble) Importance: Undecided Status: New ** Also affects: linux-oem-6.17 (Ubuntu Noble) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Plucky) Importance: Undecided Status: New ** Also affects: linux-oem-6.14 (Ubuntu Plucky) Importance: Undecided Status: New ** Also affects: linux-oem-6.17 (Ubuntu Plucky) Importance: Undecided Status: New ** Changed in: linux-oem-6.14 (Ubuntu Plucky) Status: New => Invalid ** Changed in: linux-oem-6.14 (Ubuntu Noble) Status: New => In Progress ** Changed in: linux-oem-6.14 (Ubuntu Noble) Assignee: (unassigned) => AceLan Kao (acelankao) ** Changed in: linux-oem-6.17 (Ubuntu Noble) Status: New => In Progress ** Changed in: linux-oem-6.17 (Ubuntu Noble) Assignee: (unassigned) => AceLan Kao (acelankao) ** Changed in: linux-oem-6.14 (Ubuntu Questing) Status: New => Invalid ** Changed in: linux-oem-6.17 (Ubuntu Plucky) Status: New => Invalid ** Changed in: linux-oem-6.17 (Ubuntu Questing) Status: New => Invalid ** Summary changed: - External monitor can't light or can't detect on TBT4/TBT5 port on Dell dock + External monitors can't light or can't detect on TBT4/TBT5 port on Dell dock ** Summary changed: - External monitors can't light or can't detect on TBT4/TBT5 port on Dell dock + External monitors on Dell dock are blank or can't be detected -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2130773 Title: External monitors on Dell dock are blank or can't be detected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2130773/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
