[Bug 36037] RV250Lf: airlied/drm-fixes branch crashes in new backlight code

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=36037

Johannes Obermayr <johannesobermayr at gmx.de> changed:

           What    |Removed                     |Added
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  Attachment #45356|0                           |1
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--- Comment #3 from Johannes Obermayr <johannesobermayr at gmx.de> 2011-04-07 07:27:13 PDT ---
Created an attachment (id=45373)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=45373)
dmesg

(In reply to comment #2)
> Looks like one of the pointers in radeon_legacy_backlight_get_brightness() is
> NULL, but I'm not sure which one that could be. Johannes, can you add some
> debugging output to see which one it is?

boot parameter: drm.debug=255 nomodeset 3
then a 'rmmod radeon'
and finally a 'modprobe radeon'

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