I was checking some packages, to see if I could find another case where LIBGL_ALWAYS_INDIRECT=true would crash the X Server (as in https://bugs.freedesktop.org/show_bug.cgi?id=27333), and what I find out is @subject. Recently I corrected some issues in the maniadrive package (http://maniadrive.raydium.org/), and with LIBGL_ALWAYS_INDIRECT=true the game is very playable, while otherwise, the car just keeping jumping position ahead/behind making it very hard to play; very hard to figure where the car really is... This is just a suggestion for a possible enhancement.
I think Kristian fixed some issues like this recently.
Assuming this is fixed in recent bits.
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