https://bugs.freedesktop.org/show_bug.cgi?id=40986
--- Comment #1 from Kai debian@carbon-project.org 2011-09-21 04:03:51 PDT --- With the latest Mesa Git snapshot (4a96a02d) there is some improvement: the blue overlay is gone, now I've a distorted (too long) cursor. It looks like there is some interleaving problem, because every other line is transparent.
If the cursor would normally look like # ## ###
It now looks like: #
##
###
Please also note, that I can't get a screenshot of this. Whenever I use KSnapshot, the cursor looks correct in the resulting screenshot (ie. without the additional transparent lines).