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jessie nvidia-settings multiple monitors

Linux Kernel, Network, and Services configuration.
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diddum
Posts: 1
Joined: 2015-08-30 08:31

jessie nvidia-settings multiple monitors

#1 Post by diddum »

Hello everybody, this is my first "Heeelp!" in years.
I've always used Debian with a single monitor and no need of proprietary drivers, because I usually don't do
graphics or multimedia.
Now I'm asked to set-up a machine with 3 nvidia video cards (770) and 4 monitors
and everything went south.

I started with just 2 monitors connected to 2 different video cards, not wanting to push my luck.

I installed a fresh Jessie and followed the instruction to install the nvidia drivers and tools from the Wiki.
Everything went smooth. After reboot I executed (as root) nvidia-settings and I configured
the two monitors to be one to the right to the other, with BaseMosaic option (at this point just one
monitor was active) I saved the configuration to /etc/X11/xorg.conf , I even executed nvidia-xconfig as suggested,
I rebooted and nothing happened, only one monitor
was working, while the other -- looking again in the nvidia settings -- was still disabled.

I then tried with xinerama option and things are even worse, since now both monitors are black. I
can login in one textual shell, but then I don't know what to do, since in my 10+ years of linux
I never had to mess with X server. Is there a way to at least recover a working X without reinstalling everything?

I really do not want to have to install windows on this machine, but I'm growing a little desperate....
Any suggestion ? Thanks,
Giovanni

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