[Nouveau] [Bug 70875] [NVC1] NOUVEAU(0): [drm] failed to set drm interface version

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=70875

--- Comment #8 from Ilia Mirkin <imirkin at alum.mit.edu> ---
I don't see anything that suggests that you have a hardware mux. The VGA/DVI
connectors appear to be on the nvidia card -- they're inaccessible from intel,
right? (A bit hard to tell from your logs...)

So... please try the following:

linux 3.13-rc1 -- this has some fixes for nvc1 as well as runtime pm.

don't touch bumblebee
don't touch vga_switcheroo

The nvidia card should automatically suspend when you're not using its VGA/DVI
outputs (and not using it for 3d rendering).

If you now run

xrandr --setprovideroutputsource nouveau Intel

you should be able to use your intel card to show images on the
nvidia-connected screens. (You can also reverse this logic to use the nvidia
card as the 'main' card.)

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