Public bug reported:
Platform: dell 5420 / 5424 with AMD GPU.
D-SUB or display port hot plug won't work in bionic with bionic kernel oem 4.15
-1048 and oem-osp1 5.0 -1016. It can be work around with amdgpu.runpm=0 kernel
parameter, with the price of higher power consumption.
As install bios 89.7.48 + Kernel: 4.15.0-1043-oem + amdgpu:
amdgpu-pro-19.10-793418
The hotplug works. However, no DP audio (unless boot with DP plugged).
** Affects: oem-priority
Importance: High
Status: Confirmed
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: oem-gap oem-priority
** Also affects: oem-priority
Importance: Undecided
Status: New
** Changed in: oem-priority
Importance: Undecided => High
** Changed in: oem-priority
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1841139
Title:
monitor hotplug not working as external d-sub or display port connect
amd gpu and internal lcd connect to intel gpu.
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