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
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.