[Bug 204227] Visual artefacts and crash from suspend on amdgpu

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=204227

Mirek Kratochvil (exa.exa@gmail.com) changed:

           What    |Removed                     |Added
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                 CC|                            |exa.exa@gmail.com

--- Comment #10 from Mirek Kratochvil (exa.exa@gmail.com) ---
Hello everyone,

would the artefacts look like on this picture, or am I having a different
issue?
http://e-x-a.org/stuff/amdgpu-artefacts.jpg
(Taken with a phone, as the artefacts are not screenshottable.)

The squares appear around small stuff that changes (esp. terminal text) and
disappear in around half a second. Notably, they are only seen in xfce (suspect
compositor is needed); not in LightDM (which does not do composition) nor
around any frequently refreshed/accelerated surface (glxgears and animations in
forefox are clean.)

Mine is:

05:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Raven
Ridge [Radeon Vega Series / Radeon Vega Mobile Series] (rev c3) (prog-if 00
[VGA controller])
        Subsystem: Lenovo Raven Ridge [Radeon Vega Series / Radeon Vega Mobile
Series]
        Flags: bus master, fast devsel, latency 0, IRQ 58
        Memory at b0000000 (64-bit, prefetchable) [size=256M]
        Memory at c0000000 (64-bit, prefetchable) [size=2M]
        I/O ports at 1000 [size=256]
        Memory at c0800000 (32-bit, non-prefetchable) [size=512K]
        Capabilities: [48] Vendor Specific Information: Len=08 <?>
        Capabilities: [50] Power Management version 3
        Capabilities: [64] Express Legacy Endpoint, MSI 00
        Capabilities: [a0] MSI: Enable+ Count=1/4 Maskable- 64bit+
        Capabilities: [c0] MSI-X: Enable- Count=3 Masked-
        Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010
<?>
        Capabilities: [200] Resizable BAR <?>
        Capabilities: [270] Secondary PCI Express <?>
        Capabilities: [2b0] Address Translation Service (ATS)
        Capabilities: [2c0] Page Request Interface (PRI)
        Capabilities: [2d0] Process Address Space ID (PASID)
        Capabilities: [320] Latency Tolerance Reporting
        Kernel driver in use: amdgpu
        Kernel modules: amdgpu

The problem happens on all 5.2 kernels I tried (from debian). "Debian stable"
4.19 and one 5.1 I tried are OK.

If this is a different kind of artifacts, please let me know (I'd open a
different kind of bug.)

Thanks in advance!
-mk

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