[Nouveau] 5.5 kernel: using nouveau or something else just long enough to turn off Quadro RTX 4000 Mobile for hybrid graphics?

[Marc MERLIN]

On Fri, May 29, 2020 at 02:53:51PM -0400, Ilia Mirkin wrote:
> > moving to new window moves the mouse, but not windows get displayed.
> 
> Do you see anything in dmesg after this is set up? I'd expect some
> errors about timeouts or something else.
 
Nothing other than what I pasted.

> Which kernel are you using? There have been some turing-specific fixes recently.

5.5.11. I can put 5.6 if needed.

> Also note that TLP has a problem where it forces the audio
> sub-function to always-on which prevents the GPU from suspending.

Ah, thanks for that.
I have
#RUNTIME_PM_DRIVER_BLACKLIST="amdgpu mei_me nouveau nvidia pcieport radeon"

sauron:~$ lspci |grep -i nvidia
01:00.0 VGA compatible controller: NVIDIA Corporation TU104GLM [Quadro RTX 4000 Mobile / Max-Q] (rev a1)
01:00.1 Audio device: NVIDIA Corporation TU104 HD Audio Controller (rev a1)
01:00.2 USB controller: NVIDIA Corporation TU104 USB 3.1 Host Controller (rev a1)
01:00.3 Serial bus controller [0c80]: NVIDIA Corporation TU104 USB Type-C UCSI Controller (rev a1)

So you're saying that I need to blacklist 01:00.1 and without that it hangs
when suspending the powered off nvidia chip, which is what I'm experiencing
as a hang when I unplug power?

Thanks,
Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
 
Home page: http://marc.merlins.org/