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Re: two graphics cards and two monitors

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  Re: two graphics cards and two monitors Eric S Fraga <e.fraga@ucl.ac.uk> - 2017-11-03 15:30 +0100
    Re: two graphics cards and two monitors Don Armstrong <don@debian.org> - 2017-11-03 19:30 +0100
      Re: two graphics cards and two monitors Eric S Fraga <e.fraga@ucl.ac.uk> - 2017-11-14 16:30 +0100
        Re: two graphics cards and two monitors Don Armstrong <don@debian.org> - 2017-11-14 19:40 +0100
          Re: two graphics cards and two monitors Eric S Fraga <e.fraga@ucl.ac.uk> - 2017-11-15 09:50 +0100
            Re: two graphics cards and two monitors Don Armstrong <don@debian.org> - 2017-11-16 17:50 +0100
              Re: two graphics cards and two monitors Eric S Fraga <e.fraga@ucl.ac.uk> - 2017-11-17 10:00 +0100
              Re: two graphics cards and two monitors Eric S Fraga <e.fraga@ucl.ac.uk> - 2017-11-21 18:10 +0100
    Re: two graphics cards and two monitors Felix Miata <mrmazda@earthlink.net> - 2017-11-15 11:20 +0100
      Re: two graphics cards and two monitors Eric S Fraga <e.fraga@ucl.ac.uk> - 2017-11-15 16:10 +0100

#188552 — Re: two graphics cards and two monitors

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On Sunday,  1 Jan 2017 at 22:03, jurek wrote:
> How to use two graphics cards and two monitors on nouveau driver.I
> have Nvidia gtx 650 ti boost and Nvidia gt 240 card.

Did you get anywhere with this?

I am trying to get a similar system configure with Debian testing/buster
and not getting anywhere beyond having two monitors on a single card
recognised.  I have three monitors, two on first card and 1 on second
card.  Only the ones of the first card are getting managed by
Xorg.  Although the second card and associated monitor are found by
Xorg, I cannot seem to get Xorg to configure and actually use this third
monitor.

Details follow:

$ dpkg --list '*nouveau*'
libdrm-nouveau2:amd64                2.4.84-2             
xserver-xorg-video-nouveau           1:1.0.15-2           

$ lspci | grep VGA
03:00.0 VGA compatible controller: NVIDIA Corporation GM107GL [Quadro K620] (rev a2)
04:00.0 VGA compatible controller: NVIDIA Corporation GT218 [GeForce 210] (rev a2)

$ uname -a
Linux xxx 4.13.0-1-amd64 #1 SMP Debian 4.13.4-2 (2017-10-15) x86_64 GNU/Linux

Selected lines from Xorg.0.log:

[  3877.659] (--) NOUVEAU(0): Chipset: "NVIDIA NV117"
[  3877.659] (II) NOUVEAU(0): Creating default Display subsection in Screen section
[...]
[  3877.693] (II) NOUVEAU(0): Output DVI-I-1 using monitor section rotated
[...]
[  3877.768] (II) NOUVEAU(0): Monitor name: DELL U2412M
[...]
[  3877.783] (II) NOUVEAU(0): Monitor name: DELL U3818DW
[...]
[  3877.783] (II) NOUVEAU(0): Output DVI-I-1 connected
[  3877.783] (II) NOUVEAU(0): Output DP-1 connected
[...]
[  3877.783] (--) NOUVEAU(G0): Chipset: "NVIDIA NVA8"
[...]
[  3877.795] (II) NOUVEAU(G0): Output DVI-I-1-2 using monitor section rotated
[  3877.851] (II) NOUVEAU(G0): Output HDMI-1-1 has no monitor section
[  3877.862] (II) NOUVEAU(G0): Output VGA-1-1 has no monitor section
[...]
[  3878.010] (II) NOUVEAU(G0): Monitor name: SHARP HDMI

but then nothing is connected to this monitor or this monitor is not
connected to anything...  The strange thing is that the output says that
output DVI-I-1-2 will use the "rotated" monitor section which has
already been assigned to the DVI-I-1 output.

I can post Xorg.0.log as well as my current xorg.conf if anybody is
interested.  Without an xorg-conf at all, I get the same effective
behaviour: two monitors working but third one ignored.

Any suggestions welcome.

Thank you,
-- 
: Eric S Fraga
: in Emacs 27.0.50 + Gnus v5.13 + evil-git-5d040cd
: BBDB version 3.1.2 (2017-01-30 14:47:26+00:00)

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#188560

On Fri, 03 Nov 2017, Eric S Fraga wrote:
> I am trying to get a similar system configure with Debian testing/buster
> and not getting anywhere beyond having two monitors on a single card
> recognised.  I have three monitors, two on first card and 1 on second
> card.  Only the ones of the first card are getting managed by
> Xorg.  Although the second card and associated monitor are found by
> Xorg, I cannot seem to get Xorg to configure and actually use this third
> monitor.

What does the output of xrandr; look like?

What happens if you run xrandr --output DVI-I-1-2 --auto; ?

> I can post Xorg.0.log as well as my current xorg.conf if anybody is
> interested. Without an xorg-conf at all, I get the same effective
> behaviour: two monitors working but third one ignored.

Also, is there any reason why you're defining a monitor section in your
xorg.conf? [If your displays are just rotated, you'd be better off
issuing xrandr commands to run the rotation immediately upon login or
similar, IMO. Or using autorandr or similar.]

-- 
Don Armstrong                      https://www.donarmstrong.com

Le temps est un grand maître, dit-on; le malheur est qu'il soit un
maître inhumain qui tue ses élèves.
Time is a great teacher, but unfortunately it kills all its pupils.
 -- Hector Berlioz

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#188977

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On Friday,  3 Nov 2017 at 11:19, Don Armstrong wrote:
> On Fri, 03 Nov 2017, Eric S Fraga wrote:
>> I am trying to get a similar system configure with Debian testing/buster
>> and not getting anywhere beyond having two monitors on a single card
>
>> recognised.  I have three monitors, two on first card and 1 on second
>> card.  Only the ones of the first card are getting managed by
>> Xorg.  Although the second card and associated monitor are found by
>> Xorg, I cannot seem to get Xorg to configure and actually use this third
>> monitor.
>
> What does the output of xrandr; look like?

Thanks for your response.  Sorry for delay in getting back to you but I
was away on business trip.

$ xrandr
Screen 0: minimum 320 x 200, current 5760 x 1600, maximum 16384 x 16384
DVI-I-1 connected primary 1920x1200+0+0 (normal left inverted right x axis y axis) 518mm x 324mm
   1920x1200     59.95*+
   1920x1080     60.00  
   1600x1200     60.00  
   1680x1050     59.88  
   1280x1024     60.02  
   1280x960      60.00  
   1024x768      60.00  
   800x600       60.32  
   640x480       59.94  
   720x400       70.08  
DP-1 connected 3840x1600+1920+0 (normal left inverted right x axis y axis) 880mm x 367mm
   3840x1600     59.99*+
   2560x1440     59.95  
   1920x1600     59.95  
   2560x1080     59.98  
   1920x1080     60.00    50.00    59.94  
   1920x1080i    60.00    50.00    59.94  
   1600x1200     60.00  
   1280x1024     75.02    60.02  
   1280x800      59.81  
   1152x864      75.00  
   1280x720      60.00    50.00    59.94  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   720x576       50.00  
   720x576i      50.00  
   720x480       60.00    59.94  
   720x480i      60.00    59.94  
   640x480       75.00    60.00    59.94  
   720x400       70.08  

> What happens if you run xrandr --output DVI-I-1-2 --auto; ?

$ xrandr --output DVI-I-1-2 --auto
warning: output DVI-I-1-2 not found; ignoring

>> I can post Xorg.0.log as well as my current xorg.conf if anybody is
>> interested. Without an xorg-conf at all, I get the same effective
>> behaviour: two monitors working but third one ignored.
>
> Also, is there any reason why you're defining a monitor section in your
> xorg.conf? [If your displays are just rotated, you'd be better off
> issuing xrandr commands to run the rotation immediately upon login or
> similar, IMO. Or using autorandr or similar.]

Yes, but without it (and with it as well but I was hoping...), the extra
monitor is not found at all.

thanks,
eric

-- 
: Eric S Fraga
: in Emacs 27.0.50 + Gnus v5.13 + evil-git-5d040cd
: BBDB version 3.1.2 (2017-01-30 14:47:26+00:00)

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#188984

On Tue, 14 Nov 2017, Eric S Fraga wrote:
> On Friday,  3 Nov 2017 at 11:19, Don Armstrong wrote:
> > What happens if you run xrandr --output DVI-I-1-2 --auto; ?
> 
> $ xrandr --output DVI-I-1-2 --auto
> warning: output DVI-I-1-2 not found; ignoring

This looks like xrandr isn't seeing the second card at all. In *theory*,
nouveau should be able to do multicard with these video cards. However,
it's possible that your xorg.conf is making that not work properly.

Can you move your xorg.conf away, restart X, put your Xorg.0.log up
somewhere, and run xrandr --listproviders; once X has started?

In theory, you should also be using KML, which should configure all of
the outputs fairly early in boot as well.

-- 
Don Armstrong                      https://www.donarmstrong.com

There is no mechanical problem so difficult that it cannot be solved
by brute strength and ignorance.
 -- William's Law

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#188999

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On Tuesday, 14 Nov 2017 at 10:31, Don Armstrong wrote:
> On Tue, 14 Nov 2017, Eric S Fraga wrote:
>> On Friday,  3 Nov 2017 at 11:19, Don Armstrong wrote:
>> > What happens if you run xrandr --output DVI-I-1-2 --auto; ?
>
>> 
>> $ xrandr --output DVI-I-1-2 --auto
>> warning: output DVI-I-1-2 not found; ignoring
>
> This looks like xrandr isn't seeing the second card at all. In *theory*,
> nouveau should be able to do multicard with these video cards. However,
> it's possible that your xorg.conf is making that not work properly.
>
> Can you move your xorg.conf away, restart X, put your Xorg.0.log up
> somewhere, and run xrandr --listproviders; once X has started?

I have done the above: removed xorg.conf and placed a copy of the log
file at:

http://www.ucl.ac.uk/~ucecesf/tmp/xorglog.txt

The output of xrandr is:

$ xrandr --listproviders
Providers: number : 2
Provider 0: id: 0xc3 cap: 0x7, Source Output, Sink Output, Source Offload crtcs: 4 outputs: 2 associated providers: 0 name:nouveau
Provider 1: id: 0x64 cap: 0x7, Source Output, Sink Output, Source Offload crtcs: 2 outputs: 3 associated providers: 0 name:nouveau

but only two monitors are found/configured.

> In theory, you should also be using KML, which should configure all of
> the outputs fairly early in boot as well.

Any pointers on how to do this would be welcome.

Thanks,
eric


-- 
: Eric S Fraga
: in Emacs 27.0.50 + Gnus v5.13 + evil-git-5d040cd
: BBDB version 3.1.2 (2017-01-30 14:47:26+00:00)

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#189034

On Wed, 15 Nov 2017, Eric S Fraga wrote:
> I have done the above: removed xorg.conf and placed a copy of the log
> file at:
> 
> http://www.ucl.ac.uk/~ucecesf/tmp/xorglog.txt

Perfect.

> The output of xrandr is:
> 
> $ xrandr --listproviders
> Providers: number : 2
> Provider 0: id: 0xc3 cap: 0x7, Source Output, Sink Output, Source Offload crtcs: 4 outputs: 2 associated providers: 0 name:nouveau
> Provider 1: id: 0x64 cap: 0x7, Source Output, Sink Output, Source Offload crtcs: 2 outputs: 3 associated providers: 0 name:nouveau

Awesome; X is seeing and reporting both cards, and then have Source/Sink
output support.

> but only two monitors are found/configured.

I *think* you should be able to use Reverse PRIME if you do the
following:

xrandr --setprovideroutputsource 1 0;

and then xrandr --query; should show the other source.

[The last time I did this setup, I was using multiple displays to do the
multiple monitor setup.]

> > In theory, you should also be using KML, which should configure all
> > of the outputs fairly early in boot as well.
> 
> Any pointers on how to do this would be welcome.

Assuming you aren't setting any kernel options, it should be the default now.


-- 
Don Armstrong                      https://www.donarmstrong.com

Nearly all men can stand adversity, but if you really want to test his
character, give him power.
 -- Abraham Lincoln

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#189062

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On Thursday, 16 Nov 2017 at 08:45, Don Armstrong wrote:

[...]

> I *think* you should be able to use Reverse PRIME if you do the
> following:
[+]
>
> xrandr --setprovideroutputsource 1 0;
>
> and then xrandr --query; should show the other source.

I'll give this a try next week (travelling again unfortunately) and will
report back.  Many thanks!

-- 
Eric S Fraga via Emacs 27.0.50

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#189162

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On Thursday, 16 Nov 2017 at 08:45, Don Armstrong wrote:

[...]

> I *think* you should be able to use Reverse PRIME if you do the
> following:
>
> xrandr --setprovideroutputsource 1 0;
>
> and then xrandr --query; should show the other source.

Not sure what Reverse PRIME means but, in any case, your suggestion
worked perfectly!  I can now access all three screens perfectly.  

    DVI-I-1 connected primary 1920x1200+0+0
    DP-1 connected 3840x1600+1920+0
    HDMI-1-1 connected 1280x1024+5760+0

Now getting a bit of a tennis neck, mind you... :-)

Thanks for all your help.

-- 
Eric S Fraga via Emacs 27.0.50

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#189000

Eric S Fraga composed on 2017-11-03 14:22 (UTC):

> I am trying to get a similar system configure with Debian testing/buster
> and not getting anywhere beyond having two monitors on a single card
> recognised. 

Is this a first try (has this ever worked before trying with Buster)?

> I have three monitors, two on first card and 1 on second
> card.  Only the ones of the first card are getting managed by
> Xorg.  Although the second card and associated monitor are found by
> Xorg, I cannot seem to get Xorg to configure and actually use this third
> monitor.

> Details follow:

> $ dpkg --list '*nouveau*'
> libdrm-nouveau2:amd64                2.4.84-2             
> xserver-xorg-video-nouveau           1:1.0.15-2           

> $ lspci | grep VGA
> 03:00.0 VGA compatible controller: NVIDIA Corporation GM107GL [Quadro K620] (rev a2)
> 04:00.0 VGA compatible controller: NVIDIA Corporation GT218 [GeForce 210] (rev a2)

To be clear, both are PCIe cards, neither is onboard or integrated in the CPU
package?

> $ uname -a
> Linux xxx 4.13.0-1-amd64 #1 SMP Debian 4.13.4-2 (2017-10-15) x86_64 GNU/Linux

> Selected lines from Xorg.0.log:

> [  3877.659] (--) NOUVEAU(0): Chipset: "NVIDIA NV117"
> [  3877.659] (II) NOUVEAU(0): Creating default Display subsection in Screen section
> [...]
> [  3877.693] (II) NOUVEAU(0): Output DVI-I-1 using monitor section rotated
> [...]
> [  3877.768] (II) NOUVEAU(0): Monitor name: DELL U2412M
> [...]
> [  3877.783] (II) NOUVEAU(0): Monitor name: DELL U3818DW
> [...]
> [  3877.783] (II) NOUVEAU(0): Output DVI-I-1 connected
> [  3877.783] (II) NOUVEAU(0): Output DP-1 connected
> [...]
> [  3877.783] (--) NOUVEAU(G0): Chipset: "NVIDIA NVA8"
> [...]
> [  3877.795] (II) NOUVEAU(G0): Output DVI-I-1-2 using monitor section rotated
> [  3877.851] (II) NOUVEAU(G0): Output HDMI-1-1 has no monitor section
> [  3877.862] (II) NOUVEAU(G0): Output VGA-1-1 has no monitor section
> [...]
> [  3878.010] (II) NOUVEAU(G0): Monitor name: SHARP HDMI

> but then nothing is connected to this monitor or this monitor is not
> connected to anything...  The strange thing is that the output says that
> output DVI-I-1-2 will use the "rotated" monitor section which has
> already been assigned to the DVI-I-1 output.

> I can post Xorg.0.log as well as my current xorg.conf if anybody is
> interested.  Without an xorg-conf at all, I get the same effective
> behaviour: two monitors working but third one ignored.

> Any suggestions welcome.

Things I would try:

1-Purge xserver-xorg-video-nouveau (IOW, does default modesetting driver find
three connected displays?).

2-Check if a Knoppix boot generates similar failure.

3-Swap the two cards between PCIe slots.

4-Can you get output on two displays if you remove the Quadro (IOW, will the
GeForce work at all)?

5-Try a DVI cable type with the GeForce/Sharp if the Sharp has a DVI port.

6-Try the GeForce with a DVI-to-HDMI adapter and HDMI cable.

7-Try a different HDMI port on the Sharp if it has more than one.

8-Report http://www.ucl.ac.uk/~ucecesf/tmp/xorglog.txt and failure on one of the
lists devoted to Xorg hardware issues, such as xorg-devel@lists.x.org or
xorg@freedesktop.org.
-- 
"Wisdom is supreme; therefore get wisdom. Whatever else you
get, get wisdom." Proverbs 4:7 (New Living Translation)

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/

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#189003

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On Wednesday, 15 Nov 2017 at 05:15, Felix Miata wrote:
> Eric S Fraga composed on 2017-11-03 14:22 (UTC):
>
>> I am trying to get a similar system configure with Debian testing/buster
>> and not getting anywhere beyond having two monitors on a single card
>> recognised. 

Hello Felix,

thanks for your response.  I will try some of your suggestions
later.  Some are not possible or I wish to put off trying due to (a)
logistics (distance between display and computer, cabling restrictions)
and (b) requiring IT support to access hardware...

Some specific responses:

> Is this a first try (has this ever worked before trying with Buster)?

This particular configuration has never been tried before as it's a new
computer so the Quadro K620 graphics card is new.  However, my previous
system which this replaces had two Dell 24" monitors attached to the
graphics card that came with that previous computer along with the
GeForce 210 connected via HDMI to my 60" display.  But that system used
the nvidia proprietary driver, not nouveau.

I am trying to resist using the nvidia driver but that will very likely
be my next port of call...

> To be clear, both are PCIe cards, neither is onboard or integrated in the CPU
> package?

Separate cards.

> 4-Can you get output on two displays if you remove the Quadro (IOW, will the
> GeForce work at all)?

As noted above, the GeForce has worked just fine before but with nvidia
driver, not nouveau.  There are two displays attached to the Quadro and
only one to the GeForce.

Thanks again,
eric

-- 
: Eric S Fraga
: in Emacs 27.0.50 + Gnus v5.13 + evil-git-5d040cd
: BBDB version 3.1.2 (2017-01-30 14:47:26+00:00)

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