Le 01.10.2014 23:16, Floris a écrit :
Op Wed, 01 Oct 2014 16:39:56 +0200 schreef
<berenger.mo...@neutralite.org>:
Hello.
I have recently acquired 2 (identical, 4/3 shaped) screens, so I
combined them with my current favorite screen on a computer which have
2 graphic cards, but it seems that Debian did not enabled the second
card.
I have tried it on a temporary Ubuntu install, and it works fine out
of the box, so Debian must be able to use that 2nd card too. I tried
to install a more recent kernel from backports on Debian just in
case, but still no luck. Now that I'm thinking about it, I did not
checked what Ubuntu uses as driver, so if it uses NVidia, this could
be the reason, since I'm using nouveau on Debian. But I think that
Ubuntu does not install proprietary blobs by default?
I tried to find a xorg.conf in /etc on both system, no one had it.
There is no Internet access from that computer, so packages are
installed from the Ubuntu DVD I bought 2-3 months ago (14.04 IIRC) and
from a Debian DVD set I have downloaded at work (7.5, DVDs 1 to 9
IIRC).
Does anyone knows if nouveau is supports a configuration with 2
graphic cards, or do I have to install NVidia's drivers to do the
job?
Does someone have some links to documents which could explain how to
enable that 2nd card?
Note that I think the second card is disabled, because after doing
quick searches in /sys, I discovered that what I suppose to be the
second card directory have a file named "enabled" which contains "0".
But I'm not expert at all when it comes to kernel stuff.
An easy way is to install the nvidia drivers and use the
nvidia-settings program
to make modifications to your screen. An other solution is to use
xrandr, but
I haven't used it for a long time.
success,
floris
Well, xrandr works very fine, with 2 screens on the same graphic card.
My problem is that, it does not sees the second graphic card, and so it
does not sees the screen connected on it. I still have not tried nvidia,
hopefully it'll detect both cards.
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