[Nouveau] GeForce FX5200 dual DVI & Samsung 204b

[Marcin Slusarz]

On Wed, Oct 06, 2010 at 12:33:25AM +0300, Pekka Paalanen wrote:
> On Tue, 05 Oct 2010 16:53:16 +0200
> Grzesiek Sójka <pld at pfu.pl> wrote:
> 
> > On 10/05/10 14:55, Francisco Jerez wrote:
> > >> PS. I'm afraid that my system is not very stable when the AGP
> > >> support is turned on both using the nouveau kernel source tree
> > >> and the PLD patched 2.6.35-5 version with an extra amd-k7-agp
> > >> patch. The Xserver uses the driver:
> > > Unstable? How? What's the problem?
> > 
> > Here are the logs:
> > http://yen.ipipan.waw.pl/~gs159090/tmp/log.tgz
> > 
> > BTW: Sometimes the Xserver freezes during normal work.
> > Unfortunately I was not able to generate such a crush now. I send
> > you logs if it happens again.
> 
> Whoa, you have three graphics cards/chips?
> X log lists three devices, maybe the third one is not
> a graphics card?
> 
> Anyway, the Matrox card is an important detail.
> 
> X drivers in use:
> - nouveau
> - mga
> 
> kernel drivers in use:
> - matroxfb (fb0)
> - nouveau (fb1)
> 
> Your kernel log is missing the part from boot to 12
> seconds. Might not contain anything important, but
> would be nice to see it.
> 
> You are missing VGA arbiter support in kernel.
> 
> I'm not sure how many conflicts all those cards and drivers
> create in theory, but missing VGA arbiter is not good in
> a multi-card machine.
> 
> I hope someone can tell, if the following are conflicts, and
> if so, are they fixable:
> - mga vs. nouveau DDX (XAA vs. EXA, pre-Randr vs. Randr 1.2)
> - mga vs. matroxfb (kernel driver vs. X driver)
> - matroxfb vs. nouveau (legacy kernel fb driver vs. KMS driver,
> multiple fb devices)
> 
> Finally, there is a kernel BUG at the end of the log,
> from TTM. I can't tell if it is something already
> fixed.

Just a quick note: this BUG should be easily fixable by applying
the same fix Francisco did for amd-k7-agp.c/amd_insert_memory to
amd_remove_memory.

> One option is to remove all but the nvidia graphics card,
> that would hopefully stabilise your system immediately.
> Apparently you are not really using the Matrox card, yes?
> At least, disable matroxfb and mga, and enable VGA arbiter,
> if not touching the hardware.