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what graphics driver to emerge for an ibm rs6000 44p170 pls?
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pauly
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PostPosted: Mon Aug 13, 2007 6:54 am    Post subject: what graphics driver to emerge for an ibm rs6000 44p170 pls? Reply with quote

Hi folks,
a while ago I finally managed to install gentoo on my ibm rs6000 44p 170.
Then with a bit more effort finally got xorg to build.

I went to set up X windows and typed X -configure but it complains about
not having any drivers.

I tried to emerge x11-drivers but it didn't want to do that. Seemed to want to
only emerge 1.

But then the question which one? I think it has an IBM GXT4000P graphics
card but I can't find one of those in the x11-drivers.

I pretty sure people can get X to work on thes machines ( not certian ?) but
can someone tell me which graphics driver I should emerge for these IBM
graphics cards please?

Maybe a generic one would work?
Or should I perform a different procedure to get X to start up?
(I'll have to see if it has xorgconfig when I get home too:)

many thanks,
Paul.
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didymos
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PostPosted: Mon Aug 13, 2007 7:37 am    Post subject: Reply with quote

All I can find on it is a pciids entry. It's a pretty good bet that the card can be used with the vesa and vga drivers, but I'm not committing to anything. It works with X under AIX, so I've no doubt it could work with xorg, but I think it's probably just too rare among linux users to have gotten a driver yet.
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pauly
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PostPosted: Mon Aug 13, 2007 12:31 pm    Post subject: Reply with quote

thks didymos,

This is about all I can see on dmesg regarding the display:

vio_register_driver: driver hvc_console registering
HVSI: registered 0 devices
Generic RTC Driver v1.07
Using unsupported 1280x1024 display at de000000, depth=8, pitch=4096
Console: switching to colour frame buffer device 160x64
fb0: Open Firmware frame buffer device on /pci@fee00000/display@b

what is the pci id? is it de000000?

Anyhow I built the vga driver but it startx reported "no devices to configure".
It loaded the driver happily but couldn't find such a card i guess.

tried to emerge the vesa driver but it said : MASKED.
to this day I still don't know how to overide this? can you tell me?


mmm.

Perhaps I could just stick a stadard old PCI MGA / matrox video card in it ,
and build that driver?

any ideas on that idea?

Also I pulled the thing to bits and pulled out the card.
it said IBM corp on it but wouldn't say ANYTHING about what model it was.
Tried the open firmware but don't know how to ask what card it has?
nothing obvious to tell me.

How do I find out what card the thing is?
I can't even figure that out.
Frustrating.

If the kernel can't recognise it at boot in the dmesg ,
perhaps something should be built into the kernel?

thats as much as my thinking can take me.

thanks all.
any ideas appreciated.

chs,
Paul.
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didymos
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PostPosted: Mon Aug 13, 2007 1:22 pm    Post subject: Reply with quote

pauly wrote:
what is the pci id? is it de000000?


1014:016e is what I found, but just do "lspci -nn" to find out for sure. The de000000 is a memory address, which I imagine is used for I/O to the screen.

Quote:

Anyhow I built the vga driver but it startx reported "no devices to configure".
It loaded the driver happily but couldn't find such a card i guess.

tried to emerge the vesa driver but it said : MASKED.
to this day I still don't know how to overide this? can you tell me?


Yeah, you know, I wasn't really thinking about it, but that arch might not work (I thinking more like "probably doesn't") with the vesa driver. I'm just so used to x86/x86_64 hardware. That doesn't mean the card itself can't do VESA graphics (it can, and in fact does some GL stuff in hardware as well), just that the driver isn't intended to work on that platform. You could still try building it by adding a line to /etc/portage/package.keywords:

Code:

x11-drivers/xf86-video-vesa **


but I have no idea if it'll do that, much less actually run and/or not blow up the monitor (I'm kidding...sort of). For more on masked packages, see these:

Gentoo Forums :: View topic - GF5: What are masked packages?

and

Gentoo Linux Documentation -- Mixing Software Branches

Quote:

Perhaps I could just stick a stadard old PCI MGA / matrox video card in it ,
and build that driver?

any ideas on that idea?


I ran across something on Google about that. Some guy had done a similar swap. I'll have to find it again. I just searched on "GXT4000P" and "GXT4000P linux" if you want to dig yourself.

Quote:

How do I find out what card the thing is?
I can't even figure that out.
Frustrating.


Well, try the above lspci thing. The other option is to check the tech docs on IBM's site for that model machine. These cards are unique to IBM as far as I can tell, so it's likely a chipset they themselves make.
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corsair
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PostPosted: Mon Aug 13, 2007 7:26 pm    Post subject: Reply with quote

there is no X driver for that card. you could use the frame buffer device though. (the driver is called "fbdev")

try to configure your kernel to use the open firmware device for output first. go to your kernel sources (most likely /usr/src/linux) and run "make menuconfig". There enable this:

Code:

Device Drivers  ---> Graphics support  ---> Framebuffer support for IBM GXT4500P adaptor


please note that this option is not available before kernels about version 2.6.20. Once you have enabled this option and installed the new kernel you *should* be able to see more on your screen. you might want to try the "video=ofonly" kernel option.

After you have a usable video output you could install "x11-drivers/xf86-video-fbdev" and use that driver for X output.

I do have exactly the same machine, but didn't test the frame buffer yet. I would like to see a success report from you ;-)

regards,

-corsair
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trigggl
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PostPosted: Sun Aug 26, 2007 12:51 pm    Post subject: I know this is off topic, but Reply with quote

I have 4 of these big, black, heavy dinosaurs called 44P-170.

How did you manage to get Gentoo installed? I'm downloading the ppc64 install iso right now.

I think I do have a couple with machines with GXT4500P cards, but the other two have newer cards that are more compatible.

My biggest problem is getting a kernel to boot with scsi support.
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pauly
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PostPosted: Mon Aug 27, 2007 12:47 am    Post subject: Reply with quote

mate, i haven't got all the details on me now,

but it is ESSENTIAL to have a boot partition < less than a certain size on this box.

if you do that it will work.

see if you can search for a previous post of mine Re this on these forums.
else i can find out when i'm home and post it then.

chs,
pauly.
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PostPosted: Mon Aug 27, 2007 11:08 pm    Post subject: Reply with quote

Hi,

please post the output from lspci


Eddie.
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pauly
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PostPosted: Tue Aug 28, 2007 12:47 am    Post subject: Reply with quote

gm7uac wrote:
Hi,

please post the output from lspci


Eddie.




sorry all:)

yes this project is still on my desk at home
and I have been distracted with other projects and work.

I will get this info and post it soon.

thanks.

pauly
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PostPosted: Wed Aug 29, 2007 10:11 am    Post subject: no lspci ! shock horror. Reply with quote

Hi Eddie, All,

(huey:/) #
(huey:/) #
(huey:/) # lspci
lspci: Command not found.
(huey:/) # emerge lspci
Calculating dependencies /
emerge: there are no ebuilds to satisfy "lspci".

(huey:/) #


Huston, we have a problem.:)

ideas?

chs,
-pauly-
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mark_alec
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PostPosted: Wed Aug 29, 2007 10:23 am    Post subject: Reply with quote

Code:
# emerge pciutils
That gives you lspci.
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pauly
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PostPosted: Wed Aug 29, 2007 11:21 am    Post subject: Reply with quote

Thanks marc_alec:)

ok:
(huey:~) # lspci
0000:00:0b.0 ISA //snip//
0001:40:0b.0 VGA compatible controller: IBM 256-bit Graphics Rasterizer [Fire GL1] (rev 02)
(huey:~) #

google ing gives:
GXT2000 256-bit Graphics Rasterizer (Fire GL1) [IBM]

I think it's a GXT2000, huh.

now what?:)

is that much use Eddie?
does a driver exist?

there was some earlier stuff on this thread about using the frame
buffer also. sounds exciting, but might have to wait till the weekend.
no more time 2day.

cheers all,
-pauly-
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PostPosted: Wed Aug 29, 2007 12:01 pm    Post subject: Reply with quote

https://bugs.freedesktop.org/show_bug.cgi?id=9564

It looks like even if you get framebuffer working, X will still not be usable.
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