Bug#607767: Blank screen on starting X with Dual 2 GHz G5 and X800XT; DRM module not loading for radeon driver

Mathieu Malaterre malat at debian.org
Fri Apr 22 09:40:06 UTC 2016

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Dear OP,

Are you using AGP ? AGP mode is known to be buggy on PPC:

https://bugs.freedesktop.org/show_bug.cgi?id=95017

Could you try agpmode=-1 and update this bug report.

Previous message: Bug#683796: black screen happens about 10 seconds after boot starts
Next message: Bug#802186: Complete system lockup after some time when using radeon driver in xorg.conf
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