[Nouveau] [Bug 78543] NV28M running at 1/8th GPU clock when using nouveau

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78543

--- Comment #2 from nv28m <nv28m at freemail.hu> ---
I've made more testing. It looks like the modesetting driver is unaffected of
GPU performance and because of this it's running better when the GPU is in slow
mode.

I've tried nouveau with noaccel, this smoothed scrolling (when the GPU is
running slow), but other 2D operations were still slower than with the
modesetting driver.

So, going with the modesetting driver is not a bad option at this time (as I
don't use much 3D), but it lacks XV support ;( It would be nice to fix this
slow GPU problem somehow and then I could use nouveau.

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