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I have an issue with multi-screen on my new computer with Ubuntu 16.04.

My new computer is a Dell Inspiron 15 7000 Gaming. http://www.dell.com/fr/p/inspiron-15-7567-laptop/pd?oc=cn56705&model_id=inspiron-15-7567-laptop

I install the proprietary driver for my nvidia graphic card

I can switch between my intel card and my nvidia card.

The problem is when I want to connect an other screen. First it is only work when the Nvidia card is selected not the intel one but fine maybe that normal.

But now with the Nvidia card all work grate in mirror mode but when I want to duplicate screen both displays are going to wrong resolution with no mouse control on my primary screen and strange mouse control on duplicate screen (can't make correct screen shot but you can imagine what is a screen with a clompletly wrong resolution.

I have searched a lot for what going on and the only think I have found is that my built in screen have no settings in nvidia settings.

Like I can only post 2 link here is a link to all the screenshot : https://i.sstatic.net/lDWax.jpg

In this page I have found I see both configuration and not one :

help.ubuntu.com/community/NvidiaMultiMonitors (can't put a link her sorry)

Do you have any idea of what is wrong with my computer ?

Other screen shot informations and Xorg.conf and Xorg.0.log:

Section "ServerLayout"
    Identifier "layout"
    Screen 0 "nvidia"
    Inactive "intel"
EndSection

Section "Device"
    Identifier "intel"
    Driver "modesetting"
    BusID "PCI:0@0:2:0"
    Option "AccelMethod" "None"
EndSection

Section "Screen"
    Identifier "intel"
    Device "intel"
EndSection

Section "Device"
    Identifier "nvidia"
    Driver "nvidia"
    BusID "PCI:1@0:0:0"
    Option "ConstrainCursor" "off"
EndSection

Section "Screen"
    Identifier "nvidia"
    Device "nvidia"
    Option "AllowEmptyInitialConfiguration" "on"
    Option "IgnoreDisplayDevices" "CRT"
EndSection

pastebin.com/D4ckLAY3 (can't make a link sorry)

Adrien M
  • 71
  • 2

1 Answers1

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I have no expirence with duel graphics cards, but my computer did a wrong resolution on second monitor when i did mirror and the close window and activities menue were unacessable.

to fix it, i put it on single display on the secondary monitor, as my computer's resolution was non-native to the tv, it let me choose the tv's resolution when it only displayed there. i use an intel graphics card btw.

if your desktop icons only show on 1, you may have it on extend display.

as for the intel never working, try rebooting with the graphics card you want on extended display selected, then do the same when you want to switch back. it may make it primary for that boot session, no garentee on this part as i only have a one graphic card laptop

Bailey Johnston
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