[Nouveau] [Bug 89558] [NV118] GM108 not supported by nouveau

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89558

--- Comment #43 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to Andrei Borzenkov from comment #42)
> (In reply to Ilia Mirkin from comment #41)
> > Use the modesetting driver.
> 
> Does not work - I do not get any output (but as said, I have quite dated
> Xorg). Anyway, the whole point of Optimus systems is to use discrete GPU for
> hardware acceleration; using generic driver seems to defeat it ...

How so?

With a modern Xorg you should be able to do 3 things:

(a) use modesetting + glamor on any hardware with libGL support to get X
operation acceleration [which is not something you care about since you're not
going to use the GM108 as a primary]
(b) use xrandr-based gpu offloading to get DRI2 offloading with DRI_PRIME=1
(c) use DRI3-based offloading with DRI_PRIME=1 assuming your intel ddx has that
enabled

Note how nowhere in there is there any mention of a nouveau ddx.

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