On May 17, 2010, at 6:41 PM, Dave Keck wrote: >> I'm in rather the opposite boat -- my app does NOT trigger the switch to >> NVIDIA, and my OpenGL calls fail (actually, it's more complicated that this >> as it's a screensaver and a helper app) but it sounds like if I simply link >> my bundle to one of the GL frameworks (even if I don't need it?) that will >> auto-trigger the NVIDIA usage? > > The user's Energy Saver settings affects which card is used (better > battery life vs. higher performance.) Not sure if that helps you > though, since changing the value on my system requires logging out.
On those macbook pros (that have 9600 and 9400M) it's no big deal, since the 9400 is a very functional card by itself. OpenGL stuff will work, just slower. This year's model however combines a good NVIDIA 330 with an "Intel HD" card. The Intel card is, I will say, "interesting", by which I mean "open GL doesn't really work on it". Not sure if it's the card itself or the drivers, but I'm fresh off a hate-fest for the Intel GMA950 on Win32 systems -- a graphics card which has "interesting" support of OpenGL, and will do fun things like give you a hardware renderer (that doesn't support pbuffers) if you have one monitor, or a software renderer that does (but is 100x slower) if you have 2 monitors plugged in. I had been assuming that the GMA 950s problems were due to the notoriously sh*tty OpenGL drivers on Win32 systems. However, after seeing the latest macbook pros, I'm wondering if perhaps it isn't the Intel graphics hardware itself that is the problem? I suppose it could still be that Apple is using drivers sourced from Intel? Who knows. Rumor is that due to some licensing terms, apple couldn't pair the NVIDIA 330 with a low power NVIDIA card, like they did with the 9600/9400 series last year, resulting in this franken-beast. While I'm ranting, let me also express my love for Apple's newfound policy of having strange, undocumented side-effects (the OpenGL hardware depends on which libraries you link to and how many monitors are plugged in???) This begins to feel oddly familiar after doing a bunch of win vista/win7 development. :) /end rant_______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
