[Bug 36003] [Radeon HD 5650 and 5470] Driver crash during recovery boot and in normal boot (Regression from 2.6.38-3 to -4)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=36003

--- Comment #11 from Johan Fornander <fornander.johan at gmail.com> 2011-04-19 04:34:18 PDT ---
(In reply to comment #10)
> It's not a bad interaction between i915 and radeon per se.  The switcheroo code
> needs more work to switch properly on some systems it seems.  There are a set
> acpi methods required to activate/deactivate the respective gpus.  The drivers
> need to load and initialize active hw.  If the hw is not active when the driver
> loads, then the hw is not set up properly and it won't work.  Probably some
> ordering issues in how the switcheroo acpi methods are called.

Is there anything I can do to help out with this bug? Do you need more logs or
info on my hardware setup? I am one of the users reporting this bug against
Ubuntu, using an HD5650 + Intel i5 graphics.

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