Nouveau - Sep 2017 - [Bug 102648] New: unable to use nvidia gpu after suspend

https://bugs.freedesktop.org/show_bug.cgi?id=102648

            Bug ID: 102648
           Summary: unable to use nvidia gpu after suspend
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: razorsis100 at gmail.com
        QA Contact: xorg-team at lists.x.org

Created attachment 134145
  --> https://bugs.freedesktop.org/attachment.cgi?id=134145&action=edit
dmesg with the problem before and after suspend

Os: Arch X86_64 Updated regularly
System : Notebook Asus X556UR

Tried with bumblebee nvidia:
Works perefectly after boot
but after a suspend/wake optirun output: Failed to initialize secondary GPU

only way to make it work again is: 
reboot or pci bus remove/rescan(doesn't work sometimes)

So I consulted with Lekensteyn and did numerous testings
checked nvidia card powermanagement, parent bus power mangement
PM is on for both but it just doesn't work after suspend/wake

switched to nouveau (removed bumblebee nvidia)
tested with lspci, no errors after boot
but after suspend/wake: DRM: failed to idle channel 0 [DRM]

So he suggested to file a bug for nouveau with kernel log and acpidump

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--- Comment #1 from RazorSiS <razorsis100 at gmail.com> ---
Created attachment 134146
  --> https://bugs.freedesktop.org/attachment.cgi?id=134146&action=edit
acpidump

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--- Comment #2 from RazorSiS <razorsis100 at gmail.com> ---
Created attachment 134147
  --> https://bugs.freedesktop.org/attachment.cgi?id=134147&action=edit
xorg log

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--- Comment #3 from RazorSiS <razorsis100 at gmail.com> ---
Created attachment 134148
  --> https://bugs.freedesktop.org/attachment.cgi?id=134148&action=edit
nvidia vbios

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RazorSiS <razorsis100 at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #134147|text/x-log                  |text/plain
          mime type|                            |

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RazorSiS <razorsis100 at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #134145|text/x-log                  |text/plain
          mime type|                            |

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--- Comment #4 from RazorSiS <razorsis100 at gmail.com> ---
Kernel: 4.12.12-1-ARCH

with bumblebee nvidia after supend/wake then running optirun:
dmesg outputs some error like "RmInitAdapter failed"

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RazorSiS <razorsis100 at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|unable to use nvidia gpu    |[ASUS X556UR] Can't use
                   |after suspend               |Nvidia gpu after
                   |                            |Suspend/Wake

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Martin Peres <martin.peres at free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #5 from Martin Peres <martin.peres at free.fr> ---
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