[bisected][regression] drm: amdgpu: system hangs on tty login prompt

[Tareque Md.Hanif]

Hi,

I have been testing the 5.16-rc6 kernel and it hangs on tty login prompt on my laptop. Sometimes it lets me to login but "startx" hangs the system. The system is booting fine in 5.15.7.

So I bisected the bug.

first bad commit: [f7f12b25823c0dce1165b390522d29f99c4585b4] drm/amdgpu: default to true in amdgpu_device_asic_has_dc_support

Reverting this commit fixes the issue.

Device Information:
Laptop model: Dell Inspiron 15 5567
GPU 0: Intel HD Graphics 620
GPU 1: AMD ATI Radeon R7 M445

Regards,
Tareque.
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