Arch Linux

weedfreak

Member

Registered: 2012-08-09

Posts: 49

Nvidia twinview setup

I have been using an nvidia card with nvidia driver Ok for years but just upgraded to a GeForce GTX 1070. This upgrade went well, it worked straight away with the old drivers but I upgraded to the newer nvidia driver as recommended.

I was using hdmi0 connected to my monitor with no problems.

My two new monitors arrived and one replaced my old monitor the second was connected to hdmi1 but only one works.

The wiki here seems to confuse matters, having stated that xorg.conf is deprecated in favour of /etc/X11/xorg.conf.d/10-monitor.conf nearly all of the wiki is about setting up xorg.conf. In checking my setup, which I have not looked at for years, I did not have an xorg.conf file or a 10-monitor.conf, so I created a 10-monitor.conf using the only one I found on the wiki under twinview, https://wiki.archlinux.org/index.php/NVIDIA#TwinView, the only changes were to the vertical refresh rate as the new monitors are 75Hz.

The XFCE settings/display shows one monitor at the right resolution (1920 x 1080) though it has identified the monitor as an LG 22" which is incorrect, the other monitor is identified as a digital display with a maximum 960 x 540 resolution.

As part of researching a solution I tried creating an xorg.conf file with nividia-xconfig, that only identified one monitor of an unidentified make and model.

I would appriciate some guidance on where to go next to get this working.

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 21,738

Re: Nvidia twinview setup

What about not creating any xorg config and relying on xrandr (implemented via xfce's screen settings) instead?

weedfreak

Member

Registered: 2012-08-09

Posts: 49

Re: Nvidia twinview setup

The xorg.config was a temporary test and is removed. I am not sure what you mean by xrandr via xfce screen settings. I have tried ARandR but the problem is hdmi-1 is greyed out and cannot be set, I can sei DVI-D-_0 active but I have no monitor connected to the DVI output. The xfce display settings do not change if the ARandR settings are changed.

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 21,738

Re: Nvidia twinview setup

If randr implementations don't detect the screen, what's in your xorg log? Did you check monitor and cable on another system?

weedfreak

Member

Registered: 2012-08-09

Posts: 49

Re: Nvidia twinview setup

Relevant part of log

[    17.952] (--) NVIDIA(GPU-0): DFP-0: connected
[    17.952] (--) NVIDIA(GPU-0): DFP-0: Internal TMDS
[    17.952] (--) NVIDIA(GPU-0): DFP-0: 330.0 MHz maximum pixel clock
[    17.952] (--) NVIDIA(GPU-0): 
[    17.981] (--) NVIDIA(GPU-0): LG Electronics LG FULL HD (DFP-1): connected
[    17.981] (--) NVIDIA(GPU-0): LG Electronics LG FULL HD (DFP-1): Internal TMDS
[    17.981] (--) NVIDIA(GPU-0): LG Electronics LG FULL HD (DFP-1): 600.0 MHz maximum pixel clock
[    17.981] (--) NVIDIA(GPU-0): 
[    17.982] (--) NVIDIA(GPU-0): DFP-2: disconnected
[    17.982] (--) NVIDIA(GPU-0): DFP-2: Internal TMDS
[    17.982] (--) NVIDIA(GPU-0): DFP-2: 165.0 MHz maximum pixel clock
[    17.982] (--) NVIDIA(GPU-0): 
[    17.982] (--) NVIDIA(GPU-0): DFP-3: disconnected
[    17.982] (--) NVIDIA(GPU-0): DFP-3: Internal DisplayPort
[    17.982] (--) NVIDIA(GPU-0): DFP-3: 1440.0 MHz maximum pixel clock
[    17.982] (--) NVIDIA(GPU-0): 
[    17.982] (--) NVIDIA(GPU-0): DFP-4: disconnected
[    17.982] (--) NVIDIA(GPU-0): DFP-4: Internal TMDS
[    17.982] (--) NVIDIA(GPU-0): DFP-4: 165.0 MHz maximum pixel clock
[    17.982] (--) NVIDIA(GPU-0): 
[    17.982] (--) NVIDIA(GPU-0): DFP-5: disconnected
[    17.982] (--) NVIDIA(GPU-0): DFP-5: Internal DisplayPort
[    17.982] (--) NVIDIA(GPU-0): DFP-5: 1440.0 MHz maximum pixel clock
[    17.982] (--) NVIDIA(GPU-0): 
[    17.982] (--) NVIDIA(GPU-0): DFP-6: disconnected
[    17.982] (--) NVIDIA(GPU-0): DFP-6: Internal TMDS
[    17.982] (--) NVIDIA(GPU-0): DFP-6: 165.0 MHz maximum pixel clock
[    17.982] (--) NVIDIA(GPU-0): 
[    18.081] (II) NVIDIA(0): Setting mode "DVI-D-0: nvidia-auto-select @960x540 +1920+0 {ViewPortIn=960x540, ViewPortOut=960x540+0+0}, HDMI-0: 1920x1080 @1920x1080 +0+0 {ViewPortIn=1920x1080, ViewPortOut=1920x1080+0+0}"
[    18.161] (II) NVIDIA(0): Setting mode "DVI-D-0: nvidia-auto-select @960x540 +1920+0 {ViewPortIn=960x540, ViewPortOut=960x540+0+0}, HDMI-0: 1920x1080_75 @1920x1080 +0+0 {ViewPortIn=1920x1080, ViewPortOut=1920x1080+0+0}"

I do not have access to another system with hdmi out but swapping the cables and monitors on this card shows both monitors and cables are working, it seems possible that one hdmi output on the card may be stuck.