[Bug 110674] Crashes / Resets From AMDGPU / Radeon VII

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110674

--- Comment #99 from Tom B <tom at r.je> ---
Created attachment 145062
  --> https://bugs.freedesktop.org/attachment.cgi?id=145062&action=edit
a list of commits 5.0.13 - 5.1.0

Attached is a list of all amdgpu and powerplay commits from 5.0.13 - 5.1.0. 

I have tried reverting the following which looked most likely culprits:

919a94d8101ebc29868940b580fe9e9811b7dc86 drm/amdgpu: fix CPDMA hang in PRT mode
for VEGA20

f7b1844bacecca96dd8d813675e4d8adec02cd66 drm/amdgpu: Update gc golden setting
for vega family

d25689760b747287c6ca03cfe0729da63e0717f4 drm/amdgpu/display:
drm/amdgpu/display: Keep malloc ref to MST port  -- A change to the way
displayport connectors are handled, looked promising.

db64a2f43c1bc22c5ff2d22606000b8c3587d0ec drm/amd/powerplay: fix possible hang
with 3+ 4K monitors


I also looked at that last one in detail as it seems very close to this bug.
Nothing in the code looks for 3+ monitors or even 4k. It only actually looks
for > 1 monitor.

Although it's based on disable_mclk_switching, I also tried forcing
disable_fclk_switching to true and false, neither had any affect. The result is
that mclk would be calculated based on screens but fclk would be forced on/off.
 It didn't help but I can't help think that this commit is a little too close
to this issue to be irrelevant.

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