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...suspended, vga_switcheroo will cut power to the internal discrete GPU which may not be runtime suspended at all at this moment. The solution is to not register external GPUs with vga_switcheroo, which necessitates a way to recognize if they're on a Thunderbolt daisy chain. Cc: Andreas Noever <andreas.noever at gmail.com> Cc: Michael Jamet <michael.jamet at intel.com> Cc: Tomas Winkler <tomas.winkler at intel.com> Cc: Amir Levy <amir.jer.levy at intel.com> Signed-off-by: Lukas Wunner <lukas at wunner.de> --- drivers/pci/pci.h | 2 ++ drivers/pci/probe.c...

Fix Thunderbolt-related issues in apple-gmux and vga_switcheroo: Patch [1/5] ("Recognize Thunderbolt devices") has already been subjected to a fair amount of scrutiny over at linux-pci@, I've submitted it 5 times total since May 2016. With luck it may be in ack-able shape now. Patch [2/5] amends apple-gmux to handle combined DP/Thunderbolt ports properly on newer MacBook Pros.

...iPass cable. If that's the case, and we're using Thunderbolt-connectedness as a hint that happens to work for the hardware we know about now, that's fine -- I'm just trying to understand what's a hint and what's intrisic to being connected via Thunderbolt. > Cc: Andreas Noever <andreas.noever at gmail.com> > Cc: Michael Jamet <michael.jamet at intel.com> > Cc: Tomas Winkler <tomas.winkler at intel.com> > Cc: Amir Levy <amir.jer.levy at intel.com> > Signed-off-by: Lukas Wunner <lukas at wunner.de> > --- > drivers/pci/pci.h...