Public bug reported:
[ 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.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Fix Released
** Affects: linux (Ubuntu Oracular)
Importance: Undecided
Assignee: Thibault Ferrante (thibf)
Status: In Progress
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** No longer affects: kobuk
** Also affects: linux (Ubuntu Oracular)
Importance: Undecided
Status: New
** Description changed:
[ Impact ]
- * There are 4 ports on the BMG (3 DP and 1 HDMI). Display for those 3
+ * 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
+ 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
+ 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
+ * BMG specific regression
[ Other Info ]
-
- * Anything else you think is useful to include
- * Anticipate questions from users, SRU, +1 maintenance, security teams and
the Technical Board
- * and address these questions in advance
+
+ * Fix pointed out by intel engineer. Backport done by them, just
+ checked/modified it to follow the SRU process.
** Changed in: linux (Ubuntu Oracular)
Assignee: (unassigned) => Thibault Ferrante (thibf)
** Changed in: linux (Ubuntu)
Status: New => Fix Released
** Changed in: linux (Ubuntu Oracular)
Status: New => In Progress
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https://bugs.launchpad.net/bugs/2102378
Title:
HDMI cause display malfunctioning on BMG hardware
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