[Bug 93615] Tonga does not recover from standby

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93615

--- Comment #2 from EoD <EoD at xmw.de> ---
(In reply to Alex Deucher from comment #1)
> Does it work any better with the latest code in:
> http://cgit.freedesktop.org/~agd5f/linux/log/?h=drm-next-4.5-wip

Yes, there are improvements:

When I go into standby in a virtual terminal it can recover, but still writing
the following error to dmesg:

kernel: PM: resume of devices complete after 6591.636 msecs
kernel: Restarting tasks ... done.
kernel: amdgpu 0000:01:00.0: GPU fault detected: 147 0x0f080008
kernel: amdgpu 0000:01:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x001001E1
kernel: amdgpu 0000:01:00.0:   VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x02000008
kernel: VM fault (0x08, vmid 1) at page 1049057, read from 'TC2' (0x54433200)
(0)

When I switch back to X11 the system locks up, but unlike before I still can
execute SysRq.

This is a major improvement to the drm-next-4.5 branch!

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