Patch submitted: https://lists.ubuntu.com/archives/kernel- team/2025-March/158023.html
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2102378 Title: HDMI cause display malfunctioning on BMG hardware Status in linux package in Ubuntu: Fix Released Status in linux source package in Oracular: In Progress Bug description: [ Impact ] * There are 4 ports on the BMG (3 DP and 1 HDMI). Display for those 3 DP ports are working fine, including single and double monitor display. However, whenever the HDMI port is used, after that, the 3 DP ports will not be working. Meanwhile, the HDMI port is still working. [ Fix ] * Upstream fix: drm/xe/display: Add missing HPD interrupt enabling during non-d3cold RPM resume drm/xe/display: Separate the d3cold and non-d3cold runtime PM handling drm/xe: Remove runtime argument from display s/r functions [ Test Plan ] 1. Plug in HDMI 2. Plug out HDMI 3. Plug in DP This is already tested/verified on oracular:linux-intel which includes those fixes. [ Where problems could occur ] * BMG specific regression [ Other Info ] * Fix pointed out by intel engineer. Backport done by them, just checked/modified it to follow the SRU process. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2102378/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
