Re: [REGRESSION] resume with a Thunderbolt dock broke with commit e8b908146d44 "PCI/PM: Increase wait time after resume"

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On Wed, Sep 27, 2023 at 05:42:48PM +0300, Mika Westerberg wrote:
> On Wed, Sep 27, 2023 at 04:31:43PM +0200, Lukas Wunner wrote:
> > On Wed, Sep 27, 2023 at 03:47:32PM +0300, Mika Westerberg wrote:
> > > This is not a Linux defect. The firmware is expected to create that
> > > tunnel so regardless of the "delay" the devices are already back. This
> > > is not happening.
> > 
> > I recall that newer chips can be switched over to software connection
> > manager at runtime.
> > 
> > Can we determine that the ICM firmware failed to do what it should,
> > kick it out and let the software connection manager take over?
> 
> No that's not possible. In Macs it was "partially" possible but even
> there you lose all the PM and the like. I don't even want to speculate
> what happens if you run the same on PCs.
> 
> There is an option to "force" this but I do not recommend this (pass
> thunderbolt.start_icm=1 in the command line).

Sorry, this is the complete opposite. This starts the firmware not stops
it but anyways everything else above is true ;-)



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