Messages in this thread | | | From | Eric Anholt <> | Subject | Re: [PATCH] [resend] intel_agp: Don't oops with zero stolen memory | Date | Fri, 02 Jul 2010 13:57:36 -0700 |
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On Fri, 2 Jul 2010 21:59:20 +0200, Ondrej Zary <linux@rainbow-software.org> wrote: > On Friday 02 July 2010 00:44:39 Eric Anholt wrote: > > On Wed, 16 Jun 2010 10:13:52 +0200, Ondrej Zary <linux@rainbow-software.org> > wrote: > > > When "onboard video memory" is set do "disabled" in BIOS on Asus > > > P4P800-VM board (i865G), kernel oopses with memory corruption: > > > https://bugs.freedesktop.org/show_bug.cgi?id=28430 > > > > > > Fix that by cleanly aborting the initialization. > > > > > > Signed-off-by: Ondrej Zary <linux@rainbow-software.org> > > > > I haven't seen a system with that option before. Is the integrated > > graphics still supposed to work at that point, or is it "graphics is > > disabled."? What do other OSes do here? > > Testing it right now with Windows XP. Integrated graphics works as secondary > only when the "onboard video memory" is set to "disabled"! If anything other > is set (e.g. 1MB or 32MB), the driver does not load (code 10).
OK, I was thinking in that case that we should fix the AGP driver's math so that it correctly set up a chip with no stolen memory allocation. On the other hand, I don't think we know what the correct math is, so maybe we should just go ahead with disabling AGP in that case.
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