Public bug reported:
[Impact]
DP/HDMI audio on AMD PRO VII stops working after S3.
[Fix]
Ensure HDA function is suspended before ASIC reset so the subsequent
resume can be carried out successfully.
[Test]
With the patch applied, DP/HDMI audio continues to work after S3.
[Where problems could occur]
The suspend_noirq phase should not trigger any interrupt, so if
amdgpu_asic_reset() somehow raised IRQ, it can break the system.
** Affects: hwe-next
Importance: Undecided
Status: New
** Affects: linux (Ubuntu)
Importance: Low
Status: Confirmed
** Affects: linux-oem-5.14 (Ubuntu)
Importance: Undecided
Status: Invalid
** Affects: linux (Ubuntu Focal)
Importance: Undecided
Status: Won't Fix
** Affects: linux-oem-5.14 (Ubuntu Focal)
Importance: Low
Status: Confirmed
** Affects: linux (Ubuntu Jammy)
Importance: Low
Status: Confirmed
** Affects: linux-oem-5.14 (Ubuntu Jammy)
Importance: Undecided
Status: Invalid
** Tags: oem-priority originate-from-1964736 sutton
** Also affects: linux-oem-5.14 (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux-oem-5.14 (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
** Also affects: linux-oem-5.14 (Ubuntu Jammy)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Focal)
Status: New => Won't Fix
** Changed in: linux (Ubuntu Jammy)
Status: New => Confirmed
** Changed in: linux (Ubuntu Jammy)
Importance: Undecided => Low
** Changed in: linux-oem-5.14 (Ubuntu Focal)
Status: New => Confirmed
** Changed in: linux-oem-5.14 (Ubuntu Focal)
Importance: Undecided => Low
** Changed in: linux-oem-5.14 (Ubuntu Jammy)
Status: New => Invalid
** Tags added: oem-priority originate-from-1964736 sutton
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https://bugs.launchpad.net/bugs/1968475
Title:
Fix broken HDMI audio on AMD PRO VII after S3
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