[Bug 37362] vgaswitcheroo : switch from intel to ati impossible

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=37362





--- Comment #8 from Alex Deucher <alexdeucher at gmail.com>  2011-06-13 21:49:40 ---
(In reply to comment #7)
> I don't understand. When I make the test, the X server isn't running. I write
> the command directly in the tty with the framebuffer.
> 
> The server X can't use this graphic card, ok, but i have a problem directly in
> console. So i don't why it isn't a problem with the kernel.

On a MUX-less systems, the displays are not connected to the discrete card at
all.  There is no way to switch the displays to the discrete card thus, there
is no way to use the discrete card for the console.  The only way to utilize
the discrete card is for offscreen rendering via X or some other GUI an in
order to do that, the X server needs a major amount of work.

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