Re: Successful ruby setup and a problem

[Boszormenyi Z. <zb...@fr...>]

Helge Hafting =EDrta:
> Boszormenyi Zoltan wrote:
> =

>> Hi,
>>
>> my system is Fedora Core 1, running linux-2.6.3-ruby
>> (+ DRM-cvs-update.patch from the 2.6.4-rc1-mm2 patchset)
>> and I have rebuilt XFree86-4.3.0-55 with the
>> xf86-430-prefbusid3.diff patch.
>>
>> I have a Sapphire Radeon 9200SE 128M/TV-Out/AGP8x and
>> a Sapphire Radeon 7000 PCI/32M/TV-Out and an MSI
>> K8T Neo FIS2R with an Athlon64 3200+.
>>
>> I have successfully set it up as a dualhead
>> machine with 2 PS/2 keyboards and 2 USB mice.
>>
>> This configuration is so good, even DRI works on both videocards!
>> Two kids can play tuxracer at once. :-)
> =

> =

> I'm very interested in how you got the dual DRI part working.  I use
> ruby 2.6.2, with DRI on one screen only. The other uses software
> rendering so I have 3D there too, but _way_ too slow for tuxracer.
> =

> Is this setup open-source only, or do you use some closed 3D driver?

I used the opensource driver.

> Did you do anything special to get this, other than compiling your own
> patched xserver?

Yes, patched the kernel with the updated DRM driver, too.
I put these to /etc/rc.d/rc.local:

modprobe amd64-agp
modprobe radeon

dmesg reports now two DRI devices, the old DRM driver did not report
anything. Minor 0 is the PCI Radeon, minor 1 is AGP Radeon.
My first attempts setting up DRI on both cards failed.
I used the AGP Radeon for :0.0 and the PCI one for :1.0,
this did not work. Somehow the detection code cannot work out
this config, it tries to set the "private label" of the DRI device
to the PCI bus id of the device and it fails somehow.
Changing the display order makes DRI work on both!

> Also, it looks like you have a single cpu.  Are both games nice
> and smooth with such a setup, or does the first game get
 > noticeably worse when the second one starts?

They both show occasional hiccups (some frames lost) but they
are very fast. Yes, a single CPU but such a beast! :-)
Running at 2GHz with an 1MB L2 cache. Did I say Athlon64 3200+?
I think that the scheduler tweaks that made their way into
2.6.4-rc2-mm1 would help here.

> I've noticed that tuxracer doesn't like a compile going on at
> the same time, but that's on a 333MHz processor. A dual cpu
> setup fixed that for me.

Playing a movie in Xine while rpmbuild --rebuild XFree86
causes sound dropouts (very rare) and frame drops (even less)
That's with the onboard AC97 sound card.

>> My main problem is that localhost:1.0 is destroyed by logging
>> out on localhost:0.0.
> =

> =

> Destroyed how - logging out kills the other xserver too?

The monitor goes black, looks powersave mode but it's not.
Pressing Ctrl-Alt-BkSpace brings back the gdm login.

-- =

Best regards,
Zolt=E1n B=F6sz=F6rm=E9nyi

---------------------
What did Hussein say about his knife?
One in Bush worth two in the hand.