Re: Two Nvidia cards, and black screen

[<han...@sa...>]

Hi,

Thanks for all the information. I have now once again ordered new NVIDIA=20
cards, but it will take about 2 days for them to arrive (if the shop=20
still wants to sell them to me, after I returned the previous cards ;))

In the meantime I have tried to get a dual-session setup working with a=20
Radeon 7500 PCI and a Radeon x300 PCI-E, but this seems to be even more=20
painfull then with the NVIDIAS: The 7500 PCI requires me to run the=20
latest CVS snapshot of x.org to get tv-out working, and for the x300 I=20
have to run x.org 6.8.2 with ATI's binary fglrx driver, which also still=20
seems to be very buggy (can't get dual-head monitors working correctly).=20
Additionally the setup has the same blanking problem then with the=20
NVIDIA cards.

I'll let you know if I have any luck with the -sharevts option. These=20
two days of waiting for the NVIDIA cards are going to do me good I=20
think, during the last week I have been ripping all of the hair from my=20
head ;)

-Hans

>=20
>   $ DISPLAY=3D:0 glxinfo | grep OpenGL
>   OpenGL vendor string: NVIDIA Corporation
>   OpenGL renderer string: GeForce FX 5200/AGP/SSE2
>   OpenGL version string: 2.0.0 NVIDIA 76.67
>   OpenGL extensions:
>   $ DISPLAY=3D:1 glxinfo | grep OpenGL
>   OpenGL vendor string: NVIDIA Corporation
>   OpenGL renderer string: GeForce FX 5200/PCI/SSE2
>   OpenGL version string: 2.0.0 NVIDIA 76.67
>   OpenGL extensions:
>   $ glxgears=20
>   3773 frames in 5.0 seconds =3D 754.600 FPS
>   3798 frames in 5.0 seconds =3D 759.600 FPS
>=20
> I don't personally use the acceleration very heavily, so I've no idea
> if the glxgears number is impressive or not.  At least the
> acceleration seems to be enabled.  (The PCI card actually shows better
> numbers than the AGP card.  Odd.)
>=20
> I use S-video out only on the PCI card, but that works.  I believe I
> have tested the AGP card and found that to work as well, without being
> 100% sure.
>=20
> My only beef with the cards has been that I'm somehow unable to get
> DVI out to work properly on the PCI card, but I have no reason to
> suspect that this is caused by the multihead configuration.  (Nvidia
> claims to have fixed some 1600x1200 DVI issues in the latest drivers,
> but I haven't yet had the time to see if this makes any difference.)
>=20
> > And can you also confirm that without the -sharevts option, you have a=
=20
> > similar screen blanking problem then the one described by me? If yes, I=
=20
> > just might go get some new NVIDIA cards ;)
>=20
> Starting the second head X without the -sharevts option causes the
> primary head to blank/poweroff, image returns when second head is
> terminated.
>=20
> As C=E9dric Rivard says, the -sharevts-option is an extension found (at
> least) in the Ubuntu and Debian versions of X.org 6.8.2.  (Without
> this option, I believe you need the ruby kernel patches to get around
> precisely the problem seen above.)
>=20
>=20
> =09=09=09=09=09=09=09Arne.
>=20
>=20
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