[Bug 214431] New: [AMDGPU] Graphic lockups and various ECC errors on Radeon VII

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=214431

            Bug ID: 214431
           Summary: [AMDGPU] Graphic lockups and various ECC errors on
                    Radeon VII
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.14.0
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: ted437 at gmail.com
        Regression: No

Created attachment 298837
  --> https://bugzilla.kernel.org/attachment.cgi?id=298837&action=edit
Lockup while using an internet browser

Not a kernel programmer or good at tracing issues, but I'll do my best. I
orignally posted here https://bugzilla.kernel.org/show_bug.cgi?id=211277 but
was told to post a new bug. I'll bring some context.

Radeon VII on Fedora 35 Kernel 5.14.0. Issues introduced in 5.14.0-rc7. 3
monitors connected via 3 Display Port connections. Power managment seems to be
borked as well as I can hear my fans ramp up at different times. Grahpic
lockups typically happen monitors suspend or waking up from sleep. Today I had
one during regular usage. Booting with `pci=noats` reduces the graphic
artifacts noted here -- https://bugzilla.kernel.org/show_bug.cgi?id=211277#c48

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