https://bugs.freedesktop.org/show_bug.cgi?id=108521 --- Comment #25 from Robert Strube --- acpi=off is the only parameter necessary to get the eGPU up and running. Setting this parameter allows the Thunderbolt PCI bridge to correctly have it's resources allocated. This incidentally also completely disables the Vega M (even with Vanilla kernel that does not have the device IDs commented out). I'm wondering where I can report the Thunderbolt Controller / Bridge bug? Perhaps you fine folks can point me in the right direction? -- You are receiving this mail because: You are the assignee for the bug.