Re: aty128fb does not work in newer sawtooth machines
From: Kevin Hendricks <hidden>
Date: 2000-03-11 17:22:50
Hi, Well from the of-device tree I have found out that my graphics card device id is 0x5046 which equates to a Rage 128 Pro PF card. Luckily the r128 driver in XFree 4.0 knows about this card and it is not significantly different from the Rage128 RE card I have in my B+W G3. I think the whole thing comes down to the default timing info being okay for Rage128RE but not okay for RAGE128PF > > I looked in aty128fb.c in the kernel and they hav hardwired defaults which I > can easily change but I need to know about timing info that Mac OS uses. > > Do you know of any probe code or anything at all that can determine timing info > from the MacOS side of things. I will keep looking. I am going to add this card to the Xpmac source so that it tries to use its acceleration code simply on the straight OF frame buffer. If that works, then I should be able to use Xpmac to get some of timing info. Kevin >
quoted
On Sat, 11 Mar 2000, Brad Midgley wrote: it may be because the video driver is counting on some initialization by macos (bootx). this is the case with aty64 on the g3 laptop. video isn't right if you use yaboot but it's fine with bootx.Thanks, Kevin -- Kevin B. Hendricks Associate Professor of Operations and Information Technology Richard Ivey School of Business, University of Western Ontario London, Ontario N6A-3K7 CANADA khendricks@ivey.uwo.ca, (519) 661-3874, fax: 519-661-3959
-- -- Kevin B. Hendricks Associate Professor of Operations and Information Technology Richard Ivey School of Business, University of Western Ontario London, Ontario N6A-3K7 CANADA khendricks@ivey.uwo.ca, (519) 661-3874, fax: 519-661-3959 ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/