[Bug 106159] When connecting or disconnecting a displayport to a DP hub with 4.16.2+ kernel, hard freeze with frozen video output

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Bug ID 106159
Summary When connecting or disconnecting a displayport to a DP hub with 4.16.2+ kernel, hard freeze with frozen video output
Product DRI
Version unspecified
Hardware x86-64 (AMD64)
OS Linux (All)
Status NEW
Severity normal
Priority medium
Component DRM/AMDgpu
Assignee dri-devel@lists.freedesktop.org
Reporter sass.joel@gmail.com

Created attachment 138956 [details]
dpkg -l |grep mesa

When connecting a displayport monitor to an active DP hub with working outputs,
my workstation experiences a hard freeze requiring a cold reboot. Network
services stop responding, including ping and SSH.

root@nope:~# uname -a
Linux nope 4.16.2+ #1 SMP Fri Apr 13 17:51:14 CEST 2018 x86_64 x86_64 x86_64
GNU/Linux

root@nope:~# lsmod |grep -i amdgpu
amdgpu               2695168  2
chash                  16384  1 amdgpu
i2c_algo_bit           16384  1 amdgpu
gpu_sched              20480  1 amdgpu
ttm                    94208  1 amdgpu
drm_kms_helper        143360  1 amdgpu
drm                   348160  6 amdgpu,gpu_sched,ttm,drm_kms_helper

Mesa drivers from padoka PPA


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