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Re: Bad interaction between multihead display amd desktops in debian squeeze

I am currently on "stretch" (testing).
Same behavior.
I seem unable to activate two cards at the same time.
With no /etc/X11/xorg.config I see the internal (Intel) card (no signal on nvidia monitors).
If I add explicit NVidia setup then the other two monitors come to life *after login*; gdm3 always displays on the intel monitors; after login the intel monitors go dark (but they have syncs).
I can't be more precise at the moment because I'm on Win7.

Il 02/11/2015 16:45, moxalt ha scritto:
On Sun, 1 Nov 2015 21:25:45 +0100, Mauro Condarelli <mc5686@mclink.it> wrote:

I am struggling to make work my new Debian Squezze installation on my
workhorse. Problem is X setup and its interaction with desktops.

I have two VGAs:
* intel embedded in my i7 CPU
* external NVidia GTX770
Each of them drives 2 monitors for a grand total of 4.

I managed to have partial victory in the sense:
I can have dual monitor using *either* intel *or* nvidia
or I can have all four, but then gnome crashes somehow ("Oh no! Something
went wrong...") while X is ok. In the "working" cases xrandr dees only the
two active monitors. I also installed Xfce which works happily with the same
config where Gnome crashes, but shows only the nvidia monitors with mirroring
and xrandr does not work at all.

I am now writing from Win7 (with all monitors correctly working!) and thus I
have no access to actual files.

Can someone point me in the right direction, please?
Use at least Debian 8, for a start.

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