[PATCH] xf86: Don't crash when switching modes through RandR without owning the VT.

[Adam Jackson]

On Wed, 2010-04-21 at 18:11 -0700, Pierre-Loup A. Griffais wrote:
> While VT-switched, FB access is disabled and should remain so. Trying to switch
> modes in that state would re-enable it, potentially causing crashes if trying
> to access it before the driver has recovered from the mode switch.

Reviewed-by: Adam Jackson <ajax at redhat.com>

- ajax
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