Re: Problem with xorg tryng to dual head setup with two graphics cards (intel and nvidia)

Reply: Mario Marietto : "Re: Problem with xorg tryng to dual head setup with two graphics cards (intel and nvidia)"
In reply to: Gary Jennejohn : "Re: Problem with xorg tryng to dual head setup with two graphics cards (intel and nvidia)"
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From: Mario Marietto <marietto2008_at_gmail.com>
Date: Tue, 26 Jul 2022 16:23:35 UTC
Hello.

Which kind of behavior is your ? I don't understand. I'm trying only to
save mine and your time,trying to get the shorter road,moreover suggested
by you. I try not to take up your time too much cause I know it's precious
and you want to leave me in the lurch ?

Il giorno mar 26 lug 2022 alle ore 17:47 Gary Jennejohn <garyj@gmx.de> ha
scritto:

> On Tue, 26 Jul 2022 12:08:27 +0200
> Mario Marietto <marietto2008@gmail.com> wrote:
>
> > Hello to everyone.
> >
> > What I'm trying to do is to correctly configure the file xorg.conf
> because
> > I want to use two gpus at the same time connected to two different
> monitors
> > while using FreeBSD 13.1. It could be useful when I want to make some 3d
> > modelling using Blender on the first monitor / gpu [nvidia 1060 or Intel
> > UHD graphics 630] and using the second one (nvidia 1060 or Intel UHD
> > graphics 630) to watch some tutorials. I've also got a third gpu (geforce
> > RTX 2080 ti) ,but I want to keep it free to be passed through on a bhyve
> > virtual machine. On the BIOS I've configured the Nvidia Geforce 1060 as
> the
> > GPU with which the PC boots. So,this is the scheme that I want to follow
> :
> >
> >
> > 1) monitor AOC -> hdmi cable ---> gpu nvidia geforce 1060
> >
> > 2) monitor Samsung SynchMaster ---> hdmi cable ---> gpu intel
> 'CoffeeLake-S
> > GT2 [UHD Graphics 630]'
> >
> > 3) gpu geforce RTX 2080 ti without monitor,used only to be passed thru
> with
> > bhyve
> >
> >
> > Actually I'm using this xorg.conf :
> > https://pastebin.ubuntu.com/p/DhW6RHS3zb/
> >
> > instead this is the Xorg.0.log file :
> > https://pastebin.ubuntu.com/p/YtdPq9fngQ/
> >
> >
> > In front of me I have the AOC monitor connected to the HDMI port of the
> > Geforce 1060. On my right I have the monitor samsung syncmaster,that's
> > connected to the HDMI port of the intel GPU. The 3 gpu (Geforce RTX 2080
> > ti) is non connected to any monitor because I want to use it to be passed
> > thru on a bhyve vm. What happens is that the samsung monitor works
> > partially. The only 2 apps which can be directed to it (it is attached to
> > the Intel GPU with the HDMI cable) are :
> >
> >
> > [marietto@marietto ~]$ export DISPLAY=:0.1 ; konsole
> >
> > and :
> >
> > [marietto@marietto ~]$ export DISPLAY=:0.1 ; chrome
> >
> > (firefox can be displayed only on the screen 0 : don't know why)
> >
> >
> > Here you can find the list of every PCI device attached to my PC :
> >
> > https://pastebin.ubuntu.com/p/Gx5DqckFQP/
> >
> >
> > I can export some applications to the DISPLAY=:0.1 (monitor Samsung
> > SynchMaster ---> hdmi cable ---> gpu intel 'CoffeeLake-S GT2 [UHD
> Graphics
> > 630]). But this kind of usage is not comfortable at all. Infact I can't
> run
> > another session of xorg because it says that one session is already
> > running. Only some applications are displayed over it and If I invert the
> > cable and the drivers on the xorg.conf file,placing as primary GPU the
> > intel gpu attached to the AOC monitor and as secondary GPU the nvidia
> 1060
> > attached to the samsung syncmaster,the behavior is the same,with the
> > difference that I've inverted the monitors. I've tried to enable
> > xinerama,but it does not work well. It freezes the mouse and
> > anyway,attaching virtually two screens into only one is
> ridiculous,because
> > they aren't attached physically. What I want to do is to be able to do
> some
> > tasks on monitor 1 and some different tasks on monitor 2.
> >
> >
> > # xrandr -q
> >
> > Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
> > DVI-D-0 disconnected (normal left inverted right x axis y axis)
> > DP-0 disconnected (normal left inverted right x axis y axis)
> > DP-1 disconnected (normal left inverted right x axis y axis)
> > HDMI-0 connected 1920x1080+0+0 (normal left inverted right x axis y
> > axis) 598mm x 336mm
> >    1920x1080     60.00*+  59.94    50.00    60.00    50.04
> >    1680x1050     59.95
> >    1440x900      59.89
> >    1280x1024     75.02    60.02
> >    1280x960      60.00
> >    1280x720      60.00    59.94    50.00
> >    1024x768      75.03    70.07    60.00
> >    800x600       75.00    72.19    60.32    56.25
> >    720x576       50.00
> >    720x480       59.94
> >    640x480       75.00    72.81    59.94    59.93
> > DP-2 disconnected (normal left inverted right x axis y axis)
> > DP-3 disconnected (normal left inverted right x axis y axis)
> > DP-4 disconnected (normal left inverted right x axis y axis)
> > DP-5 disconnected (normal left inverted right x axis y axis)
> >
> > arandr says that the only monitor connected is the HDMI-0,the monitor AOC
> > connected to the nVidia 1060 gpu. But if I invert the drivers on
> xorg.conf
> > and the cables,the only monitor connected will again be the HDMI-0,but
> this
> > time it will be the Samsung Synchmaster.
> >
> > The reason for this behavior could have been explained here :
> >
> >
> https://forums.freebsd.org/threads/dual-head-setup-with-two-graphics-cards.62886/post-363187
> >
> > Anyway,I don't have a solution. Do you ?
> >
>
> A similar question from a Linux user with a laptop containing a NVIDIA
> GPU and a Intel GPU was posted to unix.stackexchange.com here:
>
>
> https://unix.stackexchange.com/questions/697517/how-to-correlate-xorg-conf-config-for-nvidia-gpu-with-xrandr-detected-screens
>
> The answer seems to have solved his problem.
>
> --
> Gary Jennejohn
>


-- 
Mario.