[Haskell-cafe] Compiled program using OpenGL fails to trigger GPU switch on Mac, but works in GHCi

[Brandon Allbery]

On Wed, Mar 20, 2013 at 9:02 AM, Jesper Särnesjö <sarnesjo at gmail.com> wrote:

> This solution seems to work perfectly for me. Since the foreign code
> is allowed to run uninterrupted, the GPU switch happens, and since the
> GUI actions stay on the main thread, the program's window responds to
> keyboard and mouse input correctly.
>

If that's correct, then I think you have found a bug in the GHC runtime: my
understanding is that the timers should be disabled while foreign code is
running, specifically to avoid confusing code that has no clue that there
is another runtime involved.

-- 
brandon s allbery kf8nh                               sine nomine associates
allbery.b at gmail.com                                  ballbery at sinenomine.net
unix, openafs, kerberos, infrastructure, xmonad        http://sinenomine.net
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