[Bug 51798] Cannot enable second video card on nvidia quadro NVS420

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=51798

--- Comment #3 from Ilia Mirkin <imirkin at alum.mit.edu> ---
> ls /sys/bus/pci/devices/*/drm/*/card*/enabled | xargs -I {} -i bash -c "echo -n {}: ; cat {}"

Here's a neat trick:

grep . /sys/bus/pci/devices/*/drm/*/card*/enabled

I think "enabled" is like "is there a KMS user that has enabled this connector"
(probably something to do with assigned crtc's or who knows). e.g. Xorg.
Looking at your xorg log, it only loads for the first gpu. Do you have an
xorg.conf that hardcodes the busid?

In any case, I'd highly recommend retesting with a new kernel and
xf86-video-nouveau (and maybe xorg-server).

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