Wow! Thanks Peter! I’d pretty much given up on getting nouveau graphics working on my G5 (I plan on using it as a headless server anyway, so graphics is not on the critical path).
This gives hope. Here’s the data on my machine… > root@bigal:~# getconf PAGESIZE > 65536 > root@bigal:~# cat /proc/interrupts > CPU0 CPU1 > 16: 324536 15894 MPIC 1 0 Level keywest i2c > 18: 764 102621 MPIC 1 10 Level 0001:03:0c.0 > 25: 159 375469 MPIC-U3MSI 8 Edge eth0 > 27: 1 4 MPIC 1 27 Level keywest i2c > 38: 29521 89263 MPIC 1 38 Level 0001:03:0d.0 > 39: 11 12 MPIC 1 39 Level firewire_ohci > 48: 0 0 MPIC 1 48 Edge SMU message > 53: 1621617 666640 MPIC 1 53 Edge SMU doorbell > 63: 10 27 MPIC 1 63 Level ehci_hcd:usb1, > ohci_hcd:usb3, ohci_hcd:usb4 > 70: 113 148 MPIC 1 70 Level ehci_hcd:usb2, > ohci_hcd:usb5, ohci_hcd:usb6 > 251: 13836 368 MPIC 1 251 Edge ipi call function > 252: 122217 108015 MPIC 1 252 Edge ipi reschedule > 253: 0 0 MPIC 1 253 Edge ipi tick-broadcast > 254: 0 0 MPIC 1 254 Edge ipi debugger > LOC: 1186599 1736402 Local timer interrupts for timer event device > LOC: 259 130 Local timer interrupts for others > SPU: 78 46 Spurious interrupts > PMI: 0 0 Performance monitoring interrupts > MCE: 0 0 Machine check exceptions > HMI: 0 0 Hypervisor Maintenance Interrupts > root@bigal:~# lspci | grep -i vga > 0000:0b:00.0 VGA compatible controller: NVIDIA Corporation NV43 [GeForce 6600 > LE] (rev a2) > root@bigal:~# uname -a > Linux bigal 4.0.0-2-powerpc64 #1 SMP Debian 4.0.5-1 (2015-06-16) ppc64 > GNU/Linux Interpreting the “/proc/interrupts” data is not obvious to me. Can you help? Thanks! Rick PS: Do you have a ‘.deb’ for your re-compiled kernel? Or could you point me to a good description of what I would do to compile one of my own? Thanks in advance! On Jun 28, 2015, at 10:48 PM, Peter Saisanas <psaisa...@gmail.com> wrote: > Hi, > > I also have a Powermac G5 Quad and tried with both the Geforce 6600 and > Quadro FX4500 video cards and I have successfully gotten it up and running > using the nouveau driver along with 2D acceleration on the XOrg desktop. I > have compiled many newer kernels and created debian packages for them. Newer > 4.0+ kernels also have issues in terms of detecting the nvidia DCB from the > FCODE ROM… But there are other workarounds for this to get it up and running. > You shouldn't need to use the boot parameter "nouveau.noaccel=1" once you > have properly configured your kernel. > > In my case, the reason why X does not seem to work with your configuration is > twofold: > > The recent Debian (and Fedora) kernels for PowerPC 64 Bit running on the G5 > 64bit powermac are configured with a 64Kb kernel pagesize. This works > slightly better in terms of performance, however the nouveau driver does not > support this size. You must recompile the kernel unfortunately and configure > with 4Kb kernel pagesize as this is what nouveau will work with for now. > > To confirm, run the following command in a shell as root: > “getconf PAGESIZE” > If it returns 65536, you are using a 64Kb pagesize kernel. > Otherwise if it returns 4096, i.e. 4Kb kernel pagesize, check the next item > below. > > The newer nouveau drivers in more recent kernels default to using MSI > interrupts, however with the PPC G5, when using MSI interrupts, the powerpc > FCODE rom on Nvidia cards does not correctly set up the MSI address (or > vector). > > To confirm, run the following command in a shell as root: > “cat /proc/interrupts” > > Look for the nouveau interrupt, if it is using MSI interrupts, you need to > disable MSI interrupts either by passing the option to the nouveau module, > disable MSI interrupts by passing an option to the kernel command line in > yaboot.conf or disable MSI interrupt support in total when compiling a new > kernel. If configured correctly, nouveau should be using level or edge > interrupts. > > > This is what worked for me anyway. > > Cheers, > Peter > -- To UNSUBSCRIBE, email to debian-powerpc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/1d64232c-073c-436d-8cc6-c6afc7d23...@pobox.com
