[Bug 108493] Unigine Heaven at 4K crashes amdgpu and causes a GPU hang

https://bugs.freedesktop.org/show_bug.cgi?id=108493

--- Comment #13 from Alex Deucher alexdeucher@gmail.com --- (In reply to Timur Kristóf from comment #9)

OD_MCLK: 0: 300MHz 750mV 1: 1000MHz 800mV 2: 1750MHz 900mV

This is vddc.

[DEFAULT] ATOM_MCLK_ENTRY Array

Entry: 0 Frequency: 300 MHz. Voltage:. 1000 MV Entry: 1 Frequency: 1000 MHz. Voltage:. 1000 MV Entry: 2 Frequency: 1750 MHz. Voltage:. 1000 MV

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This is mvdd. these are not the same voltages. The pp_od_clk_voltage interface only allows you to adjust vddc. The vddc values match what is in the vbios for your card.