Re: Powermac g5 strange colors with gui

[Peter Saisanas <psaisanas@gmail.com>]

Hi Aidan,

I have had a look at the logs you provided.

The kernels i have provided are specifically configured for the last Powermac G5's (11.2).
Regarding the fans, note the following line in your dmesg log:

[    0.000000] WARNING ! Your machine is PMU-based but your kernel
[    0.000000]           wasn't compiled with CONFIG_ADB_PMU option !

The Powermac 11.2 machines use the SMU for environmental control, whereas your machine seems to require PMU to be enabled.
Cant remember if this is enabled in the kernel, when i get a moment later on i may have a look.

You may need to reconfigure and recompile a kernel to address this.

Regarding your fan issue, have you tried running sudo modprobe i2c-powermac to see if that addresses the issue? If it does, go ahead and add this module to your /etc/modules file so it automatically loads in the future.

Regarding your display issues, for starters, on your kernel command line you have effectively disabled the Nouveau module.
Nouveau hasn't even started.

Try removing "nouveau.modeset=0 video=TV-1:d video=DVI-I-1:d video=DVI-I-2:1920x1080:-24:D" from your kernel command line.

Also, ensure the "nv" module is blacklisted as it conflicts with nouveau.

Please provide the same logs after the changes i mentioned.

Regarding the comment "I have used linux for about three years, but I've never gone this deep into a system before.".

When your using a an alternative architecture (i.e. anything other than x86), it forces you to learn linux. IMO, its the best way to learn linux!

Good luck!

Regards,
Peter

On 31/12/15 10:55, Aidan Sciortino wrote:

I have an AGP g5. The kernel that you have listed is the one that I am using. It also appears that something is wrong with the windfarm driver, because after about five minutes the fans are blowing at top speed. I've attatched the two logs as text files. dmesgOut.txt is the output of dmesg and interruptOut.txt is the output of cat /proc/interrupts. I have used linux for about three years, but I've nevere gone this deep into a system before.

Thank you so much for the help!

Aidan

On Wed, Dec 30, 2015 at 3:44 PM, Peter Saisanas <psaisanas@gmail.com> wrote:

Hi Aidan,

Please use this 3.18.16 kernel. Link below:
https://drive.google.com/open?id=0B8pqd5Ots1vffmY5ZnpGUDg4UGNnVFk2M05tQUtEUUkwUmhmQWdLMWpfZGVraDIxSFltb1k

Please post a complete dmesg log. (Please dont grep anything, i mean a complete dmesg log).

Also please post the output of "cat /proc/interrupts".

I think a step has been missed where the msi interrupts are required to be disabled. this is required for PMAC's with PCIe (PMAC 11.2).
Perhaps MSI interrupts may or may not be required for AGP based GPU's.

I take it your machine is an AGP + PCIx Powermac G5?

Hopefully the two logs mentioned may shed some light on the issue and hopefully help sort out your problem.
I assume you already have a kernel running with a 4k pagesize?

Regards,
Peter

On 31/12/15 03:57, Aidan Sciortino wrote:

The card and monitor both worked fine under mac os x, and the color is fine in the terminal. I'm not sure what would indicate a gpu or monitor error, but they a were both working fine under os x.

Thanks for the suggestion though, I'll try a different cable.

Aidan

On Wed, Dec 30, 2015, 11:54 AM Brock Wittrock <brockwittrock@gmail.com> wrote:

Have you ruled out the possibility of a hardware issue either with your monitor, video card port(s), and video cable itself?  Sometimes bent or missing pins on the video cables or loose connections can cause such problems.  Just wanted to throw that out there.

B-rock

On Wed, Dec 30, 2015 at 10:31 AM, Aidan Sciortino <2001flyingpigs14@gmail.com> wrote:

Thanks,

I have installed the kernel as suggested above,  and when I run uname -a it returns that the kernel is running, but the graphical errors persist. Do I need to do something more? I'm a bit of a noob when it comes to graphics, so I may have just gotten it wrong.

Thanks for the help

Aidan Sciortino

On Tue, Dec 29, 2015, 11:09 PM Rick Thomas <rbthomas@pobox.com> wrote:

Hi Aidan,

Welcome to the Debian-on-G5-Macs club!

Peter Saisanas has a patched kernel that fixes this problem.

Check out this discussion in the mail archives:
     https://lists.debian.org/debian-powerpc/2015/11/msg00006.html

To cut to the chase,
1) download the two ".deb" files at this URL:
https://drive.google.com/folderview?id=0B8pqd5Ots1vfaDdaOGJndzU2SlE&usp=sharing&tid=0B8pqd5Ots1vfT2puX09CYjEwcFk
do the following steps as root
2) do a "dpkg -i" on each of these ".deb" files.
3) do "update-initramfs -u"
4) Modify your "/etc/yaboot.conf" file to add a stanza pointing to the
new kernel and initrd files in /boot
5) run "ybin"
6) reboot and select the new yaboot option you created in step 4

You should be good to go

I've CC-ed Peter in case he sees anything I've missed here...

Rick


On 12/29/2015 3:27 PM, Aidan Sciortino wrote:
> Hello,
>
> I've successfully gotten Debian 8 stable up and running on my powermac
> g5, but am struggling to get a gui configured. The computer has an
> Nvidia fx 5200 graphics card, and I'm using the nouveau driver.   The
> colors are extremely messed up, and I'm thinking it's a problem with
> nouveau. Has anyone else had this problem before? Does anyone know of
> a solution?
>
> Thanks
>
> Aidan
> --
> Aidan Sciortino
> Inventor
> Engineer
> Dreamer

--

Aidan Sciortino

Inventor

Engineer

Dreamer

--

Aidan Sciortino

Inventor

Engineer

Dreamer

--

Aidan Sciortino

Hacker, Inventor,
Dreamer, Engineer