http://bugs.freedesktop.org/show_bug.cgi?id=24475

           Summary: clutter applications are unusable with radeon/radeonhd
           Product: Mesa
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/r300
        AssignedTo: [email protected]
        ReportedBy: [email protected]


(originally reported against openSUSE:
https://bugzilla.novell.com/show_bug.cgi?id=544924)

All applications that are using clutter are not usable when using the radeon or
radeonhd driver. A similar bug has been reported for intel 855GM cards (see bug
24140)

Note this comment from upstream clutter developer:

===========
usually, any bug in the event handling for Clutter is the direct result of a
malfunctioning glReadPixels(). in order to identify the scene graph element
that originated the event, Clutter encodes each actor's unique id into a RGB
value and renders the scene graph using those colors. in this case, the
warning:

(test-events:8008): Clutter-CRITICAL **: clutter_id_pool_lookup: assertion `id
< id_pool->array->len' failed

means that the value extracted from the glReadPixels() output was not a valid
id.
===========

According to the openSUSE X team, it'd be an issue in Mesa.

lspci tells me I have "ATI Technologies Inc M56GL [Mobility FireGL V5200]"


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