** Description changed: [Impact] - + External monitors on Dell dock are blank or can't be detected. [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] + Users with MST monitor setups (especially MST docks with multiple monitors) may + experience display initialization failures or blank screens when one monitor + doesn't support FEC but another monitor on the same link uses DSC compression. + Additionally, users could encounter inconsistent display behavior where monitors + work or fail depending on the order they're detected or what link rates are + negotiated.
-- 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
