Peter, I have installed your 4.4.0 kernel. With the same monitor I was using before I get this dmesg log (seems to be about the same issue). Same EDID issue with the other DVI port too: http://pastebin.com/NJDvK56K
I tried another monitor and I get a black screen that eventually has white,purple,black, and green bars. Here's a dmesg log from that monitor: http://pastebin.com/ZuZWFCXy Here's an output of /proc/interrupts from your 4.4.0 kernel: http://pastebin.com/jUqmhUSi Also btw, I assume you are aware, but if not, your linux-headers-4.4.0 is uninstallable because it depends on a version of libncurses5 >= 6 (5.9 is installed) and libtinfo5 >= 6 (5.9 is installed). Hopefully this new information helps. Let me know what I can try next... Logan On Thu, Jan 14, 2016 at 3:04 PM, Peter Saisanas <[email protected]> wrote: > Hi Logan, > Not sure if you have intentionally disabled MSI interrupts for nouveau, > but i believe the MSI interrupts only need to be disabled for PCIe based > nVidia gpu's running the nouveau driver on Powermac G5's only. I have my > doubts that AGP based nVidia GPU's ever have MSI interrupts enabled in the > first place. > > Either way, MSI interrupts are disabled on your machine. > > Only try the 4.4.0 kernel out. Originally these kernels were for the > Powermac G5's (PMAC 11.2) but only recently i have had feedback from an AGP > based machine (PMAC 7.2) and tweaked the kernel configs to accommodate > those machines as well. > > Anyway, if you can run 4.4.0 and give feedback along with full dmesg logs > and cat /proc/interrupts logs, this would be most helpful. > > You probably are aware of this, but make sure you create a new entry in > yaboot.conf and run "ybin -v" for the new test kernel. > > Regards, > Peter > > > > > > On 15/01/16 06:01, Logan Anteau wrote: > > Peter, > > Thanks for your suggestions. Here's a pastebin of my /proc/interrupts: > > http://pastebin.com/2ZG4qESD > > I'll try one of your newer kernels either tonight or tomorrow when I get > time. I believe I tried your 3.8.16 kernel and had other issues with it. > Networking didn't work out of the box, the system didn't shut down (only > halted) and it hung when trying to start lightdm (I couldn't even ssh into > it or get to the ttys through Ctrl+Alt+F1,F2,etc). > > I'll give you 4.4/4.3 kernels a try though and report back. Unless you > have any intermediate recommendations first. > > Logan > > > On Thu, Jan 14, 2016 at 3:42 AM, Peter Saisanas <[email protected]> > wrote: > >> Hi Logan, >> The kernel version is quite old (3.16.7). Perhaps you can try something >> newer. Nouveau continually has improvements practically with each newer >> kernel version. >> >> Perhaps something to consider, try the easy way out and use a >> pre-compiled kernel deb package that i have available. I have kernels as >> new as 4.4.0 available suitable for Powermac G5's. >> At least these could perhaps be a better baseline as these kernels are >> known to be working for many Powermac G5's (AGP & PCIe GPU's along with a >> few generations of nVidia GPU's (some even older than yours). Makes it >> easier to have a side by side comparison. >> Your call, link is below if interested. >> >> >> https://drive.google.com/folderview?id=0B8pqd5Ots1vfT2puX09CYjEwcFk&usp=drive_web >> >> Many have used them successfully in the past and have got their G5 >> Powermacs running with nouveau. >> >> I'm not so sure that MSI interrupts are ever enabled on AGP GPU's in the >> first place (PCIe based GPU's are a different story). >> It would be interesting to see your cat /proc/interrupts log as well. >> >> Regarding your EDID issue, can you try the other DVI connector of your >> video card or cable or alternatively try another display out if the issue >> still persists. >> >> Most Apple OEM ATI Radeon GPU's have their own issues as well. But that's >> another story. >> >> Regards, >> Peter >> > > >
