[Nouveau] [Bug 97505] X11 does not detect nouveau when using the linux kernel EFI Loader (GRUB loader works fine)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97505

--- Comment #6 from Ilia Mirkin <imirkin at alum.mit.edu> ---
I think the important difference is

[    0.134526] vgaarb: setting as boot device: PCI:0000:01:00.0

without this, X doesn't pick up the device. To be honest, I don't remember the
details... it's somewhere deep in X or libdrm. And it only has to do with
auto-probing.

It does seem like in your EFI boot's xorg log you have

[   488.713] (--) PCI:*(0:1:0:0) 10de:0407:106b:00a0 rev 161, Mem @
0xd2000000/16777216, 0xc0000000/268435456, 0xd0000000/33554432, I/O @
0x00005000/128, BIOS @ 0x????????/131072

Which is a good sign. So ... not sure. I bet adding an xorg.conf that
explicitly references the BusID will fix it right up though.

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