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This fixes a bug where running the card out of PPLL's when hotplugging another monitor would result in all of the displays going blank and failing to work properly until X was restarted or the user switched to another VT. [Michel Dänzer: Pass errno instead of -ret to strerror()] [Daniel Martin: Add \n to log message] Picked from xf86-video-ati 7186a87 Handle failures in setting a CRTC to a DRM mode properly Signed-off-by: Daniel Martin <consume.noise@gmail.com> Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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