Readers confirm Jaguar, Radeon issues
updated 11:05 am EDT, Mon August 26, 2002
Peter Roman and Brad Wilkens provided more info on the Jaguar and Radeon PCI cards incompatibility noted this morning.
[original report] "Chad Wilkens writes about incompatibility with Jaguar and Radeon PCI
cards: "It seems that Apple has left behind a good chunk of the Dual
Monitor users out there with Jaguar. There are some threads on Apple's
support forums about people not being able to boot the installer CD
with their card in. If you remove the card, the install proceeds fine.
But even after the install, if you try to use the Card, Jaguar will not
boot. Not cool!"
[follow-up by Wilkens] "it seems to effect people only with
the original Radeon Mac Edition PCI cards, so people with Radeon 7000 cards
are fine. Lowering your RAM below 1GB seems to help for some people, but
it's unconfirmed. It also seems be a problem with all models, not just
Quicksilvers, which was as it was it was previously thought."
[Peter Roman] "Dual 533, stock GeForce2MX in AGP and a brand new ATI Radeon 7000 card
in the first PCI slot. The installer gave me a kernel panic with both
cards in; went fine after I pulled the Radeon. Now I'm running both
cards with NO problems, but the Radeon isn't showing Quartz Extreme
acceleration (the GeForce2MX is). One thing I have noticed is a general slow down in performance on the GeForce2MX while running at 1600x1200. Screensavers crawl at this rez, even though they didn't before... hoping 10.2.1 will fix this."
Fresh-Faced Recruit
Joined: Jul 2001
Duh
Quartz Extreme requires AGP 2x cards - so obviously a PCI card won't benefit.
Basically Quartz turns every window into a "texture" using OpenGL and thus allows the whole screen to be manipulated using the OpenGL-supporting hardware on the graphics card. AGP is required for many reasons including bandwith (each window can take megabytes of RAM).
Welcome to the world of Mac OS X.