Nouveau - Nov 2023 - [REGRESSION]: acpi/nouveau: Hardware unavailable upon resume or suspend fails

#regzbot introduced: 89c290ea758911e660878e26270e084d862c03b0
#regzbot link: https://gitlab.freedesktop.org/drm/nouveau/-/issues/273
#regzbot link: https://bugzilla.kernel.org/show_bug.cgi?id=218124

## Reproducing

1. Boot system to framebuffer console.
2. Run `systemctl suspend`. If undocked without secondary display, 
suspend fails. If docked with secondary display, suspend succeeds.
3. Resume from suspend if applicable.
4. System is now in a broken state.

## Testing

- culprit commit is 89c290ea758911e660878e26270e084d862c03b0
- v6.6 fails
- v6.6 with culprit commit reverted does not fail
- Compiled with 
<https://gitlab.freedesktop.org/drm/nouveau/uploads/788d7faf22ba2884dcc09d7be931e813/v6.6-config1>

## Hardware

- ThinkPad W530 2438-52U
- Dock with Nvidia-connected DVI ports
- Secondary display connected via DVI
- Nvidia Optimus GPU switching system

```console
$ lspci | grep -i vga
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core 
processor Graphics Controller (rev 09)
01:00.0 VGA compatible controller: NVIDIA Corporation GK107GLM [Quadro 
K2000M] (rev a1)
```

## Decoded logs from v6.6

- System is not docked and fails to suspend: 
<https://gitlab.freedesktop.org/drm/nouveau/uploads/fb8fdf5a6bed1b1491d2544ab67fa257/undocked.log>
- System is docked and fails after resume: 
<https://gitlab.freedesktop.org/drm/nouveau/uploads/cb3d5ac55c01f663cd80fa000cd6a3b5/docked.log>

Hi Owen,

On Fri, Nov 10, 2023 at 5:55?AM Owen T. Heisler <writer at owenh.net>
wrote:
>
> #regzbot introduced: 89c290ea758911e660878e26270e084d862c03b0
> #regzbot link: https://gitlab.freedesktop.org/drm/nouveau/-/issues/273
> #regzbot link: https://bugzilla.kernel.org/show_bug.cgi?id=218124
Thanks for the bug report. Do you prefer to continue the discussion
here, on gitlab or on bugzilla?
>
> ## Reproducing
>
> 1. Boot system to framebuffer console.
> 2. Run `systemctl suspend`. If undocked without secondary display,
> suspend fails. If docked with secondary display, suspend succeeds.
> 3. Resume from suspend if applicable.
> 4. System is now in a broken state.
So I guess we need to put those devices to ACPI D3 for suspend. Let's
discuss this on your preferred platform.

Kai-Heng
>
> ## Testing
>
> - culprit commit is 89c290ea758911e660878e26270e084d862c03b0
> - v6.6 fails
> - v6.6 with culprit commit reverted does not fail
> - Compiled with
>
<https://gitlab.freedesktop.org/drm/nouveau/uploads/788d7faf22ba2884dcc09d7be931e813/v6.6-config1>
>
> ## Hardware
>
> - ThinkPad W530 2438-52U
> - Dock with Nvidia-connected DVI ports
> - Secondary display connected via DVI
> - Nvidia Optimus GPU switching system
>
> ```console
> $ lspci | grep -i vga
> 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core
> processor Graphics Controller (rev 09)
> 01:00.0 VGA compatible controller: NVIDIA Corporation GK107GLM [Quadro
> K2000M] (rev a1)
> ```
>
> ## Decoded logs from v6.6
>
> - System is not docked and fails to suspend:
>
<https://gitlab.freedesktop.org/drm/nouveau/uploads/fb8fdf5a6bed1b1491d2544ab67fa257/undocked.log>
> - System is docked and fails after resume:
>
<https://gitlab.freedesktop.org/drm/nouveau/uploads/cb3d5ac55c01f663cd80fa000cd6a3b5/docked.log>