Hi all, I have been trying to solve nouveau issues on my iMac G5 for ages. As far as I can understand it, there is a problem with nouveau and page size mapping. I tried both 64K and 4K page size kernels and the the result is always distorted video. There is an old To-Do list, which says "fix the page size mapping problem on G5/64 bit for exposing fifo regs" on https://nouveau.freedesktop.org/wiki/ToDo/. Is there any chance that this bug will be fixed ? I am not a programmer, so I can't be of any help. Jeroen Diederen
Which GPU do you have? The NV40 AGP board (GeForce 6800) works particularly poorly. However as long as you go with 4k pages (and there's no real benefit to 64k pages for most applications), basic things should work. I wouldn't recommend using a GL-based compositor though. Which distortion are you talking about? Cheers, -ilia On Mon, Jun 22, 2020 at 11:10 AM Jeroen Diederen <jjhdiederen at zonnet.nl> wrote:> > Hi all, > > I have been trying to solve nouveau issues on my iMac G5 for ages. As > far as I can understand it, there is a problem with nouveau and page > size mapping. I tried both 64K and 4K page size kernels and the the > result is always distorted video. > There is an old To-Do list, which says "fix the page size mapping > problem on G5/64 bit for exposing fifo regs" on > https://nouveau.freedesktop.org/wiki/ToDo/. > > Is there any chance that this bug will be fixed ? I am not a programmer, > so I can't be of any help. > > Jeroen Diederen > _______________________________________________ > Nouveau mailing list > Nouveau at lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/nouveau
Hi Ilia, I experience screen tearing for both 64k and 4k page size. My iMac G5 has an nVidia Geforce FX 5200 Ultra GPU. Regards, Jeroen Ilia Mirkin schreef op 2020-06-22 17:25:> Which GPU do you have? The NV40 AGP board (GeForce 6800) works > particularly poorly. However as long as you go with 4k pages (and > there's no real benefit to 64k pages for most applications), basic > things should work. I wouldn't recommend using a GL-based compositor > though. > > Which distortion are you talking about? > > Cheers, > > -ilia > > On Mon, Jun 22, 2020 at 11:10 AM Jeroen Diederen > <jjhdiederen at zonnet.nl> wrote: >> >> Hi all, >> >> I have been trying to solve nouveau issues on my iMac G5 for ages. As >> far as I can understand it, there is a problem with nouveau and page >> size mapping. I tried both 64K and 4K page size kernels and the the >> result is always distorted video. >> There is an old To-Do list, which says "fix the page size mapping >> problem on G5/64 bit for exposing fifo regs" on >> https://nouveau.freedesktop.org/wiki/ToDo/. >> >> Is there any chance that this bug will be fixed ? I am not a >> programmer, >> so I can't be of any help. >> >> Jeroen Diederen >> _______________________________________________ >> Nouveau mailing list >> Nouveau at lists.freedesktop.org >> https://lists.freedesktop.org/mailman/listinfo/nouveau