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

[bugzilla-daemon at bugzilla.kernel.org]

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


Alex Deucher <alexdeucher at gmail.com> changed:

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                 CC|                            |alexdeucher at gmail.com




--- Comment #2 from Alex Deucher <alexdeucher at gmail.com>  2011-06-13 14:13:46 ---
Is there an option in your bios setup to select the discrete graphics? Try
selecting that. vgaswitcheroo only supports hybrid GPUs with display MUXes.
Some new laptops are MUX-less (which yours appears to be) which means the
display hardware is only attached to the integrated GPU and the other one is
strictly used for rendering. Unfortunately, the X server needs a lot of work to
support that scenario so it work be supported any time soon in the open source
drivers.

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