[Nouveau] [Bug 110997] New: NV50 fan runs at full speed after resume from suspend on kernels 5.1.8, 4.19.49

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110997

            Bug ID: 110997
           Summary: NV50 fan runs at full speed after resume from suspend
                    on kernels 5.1.8, 4.19.49
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: m.meledandri at gmail.com
        QA Contact: xorg-team at lists.x.org

Created attachment 144635
  --> https://bugs.freedesktop.org/attachment.cgi?id=144635&action=edit
vbios.rom

As of stable kernels 5.1.8 and 4.19.49, the GTX 260 fan runs at full speed
after resuming from suspend.

This behavior regressed as of commit 342406e4fbba9a174125fbfe6aeac3d64ef90f76
drm/nouveau/i2c: Disable i2c bus access after ->fini()
https://lkml.org/lkml/2019/6/7/673

Reverting this single commit when building the respective stable kernels fixes
the fan speed issue.

$ lspci -nn -d 10de:
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GT200 [GeForce GTX
260] [10de:05e2] (rev a1)

Discussion on Nouveau mailing list:
https://lists.freedesktop.org/archives/nouveau/2019-June/032620.html

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