https://bugzilla.kernel.org/show_bug.cgi?id=19002 --- Comment #21 from Alex Deucher <alexdeucher@xxxxxxxxx> 2010-12-14 21:17:59 --- (In reply to comment #19) > > 2) No AGP fast-write here at all. AFAIK it's a chipset errata on AMD 8xxx. It's buggy on all boards. We don't enable it at all with kms. > > 3) 256 MB AGP aperture, half of which is of course reserved for the AGPGART > IOMMU on the AMD 8xxx chipset. The BIOS allows larger (upto 1GB, which happens > to be video memory size as well), but that was a reasonably late addition to > the BIOS (256 was the previous limit), and for whatever reason I couldn't get > it to work in testing, so I've stuck with 256 MB (128 MB of it AGPGART IOMMU), > which /does/ work. > > BTW, /should/ a larger aperture work? Given that half of it's AGGART IOMMU, > should larger == better? I've not tested larger recently, maybe it works now? > Bigger isn't necessarily better, it just means more pages can be mapped into the gart. We default to 512 MB on non-AGP systems. > 4) dmesg says AGP v3 device in 8x mode. Years ago I had problems with 8x and > had to use 4x max, but last I tried, 4x and 8x worked but 1x and 2x were > broken. > AGP v3 devices only support 4x and 8x modes. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. ------------------------------------------------------------------------------ Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d -- _______________________________________________ Dri-devel mailing list Dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/dri-devel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
