Fedora 29 no displayport output.

lleb · 05-10-2019, 08:02 PM

I just installed the Nvidia GTX 1070 with 3x displayports 1x HDMI port.

The HDMI port works under linux, but cannot get the displayports to output anything under Linux. I had my work laptop home the other day and both monitors work with the displayport.

Code:

00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) I/O Memory Management Unit
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe GPP Bridge
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:03.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe GPP Bridge
00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:07.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:07.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Internal PCIe GPP Bridge 0 to Bus B
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Internal PCIe GPP Bridge 0 to Bus B
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 59)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 7
03:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset USB 3.1 XHCI Controller (rev 01)
03:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset SATA Controller (rev 01)
03:00.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Bridge (rev 01)
16:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
16:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
16:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
18:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
1c:00.0 VGA compatible controller: NVIDIA Corporation GP104 [GeForce GTX 1070] (rev a1)
1c:00.1 Audio device: NVIDIA Corporation GP104 High Definition Audio Controller (rev a1)
1d:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Zeppelin/Raven/Raven2 PCIe Dummy Function
1d:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Platform Security Processor
1d:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) USB 3.0 Host Controller
1e:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Zeppelin/Renoir PCIe Dummy Function
1e:00.2 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 51)
1e:00.3 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) HD Audio Controller

[root@ NVIDIA]# lshw | grep display
           *-display

[root@ NVIDIA]# xrandr -q
Screen 0: minimum 8 x 8, current 2560 x 1440, maximum 32767 x 32767
DVI-D-0 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 699mm x 393mm
   2560x1440     59.95*+
   2048x1152     60.00  
   1920x1200     59.88  
   1920x1080     60.00    59.94    50.00    29.97    25.00    23.98    60.05    60.00    50.04  
   1680x1050     59.95  
   1600x1200     60.00  
   1600x900      60.00  
   1280x1024     75.02    60.02  
   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-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
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)

[root@ NVIDIA]# lshw | grep -A10 display
           *-display
                description: VGA compatible controller
                product: GP104 [GeForce GTX 1070]
                vendor: NVIDIA Corporation
                physical id: 0
                bus info: pci@0000:1c:00.0
                version: a1
                width: 64 bits
                clock: 33MHz
                capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
                configuration: driver=nvidia latency=0

NVIDIA-Linux-x86_64-418.56.run

That is the driver I am running. I followed these instructions to install the drivers.

Code:

Step 1

	$ lspci -vnn | grep VGA

[user@ TV]$ lspci -vnn | grep VGA
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK104 [GeForce GTX 770] [10de:1184] (rev a1) (prog-if 00 [VGA controller])

Step 2	-	Download NVIDIA drivers, this system they are stored:  /home/ray/NVIDIA

	$ ls NVIDIA-Linux-x86_64*

[user@ NVIDIA]$ d
total 104700
drwxrwxr-x.  2 ray ray      4096 Apr 18 12:09 ./
drwxr-xr-x. 31 ray ray      4096 Apr 18 12:09 ../
-rw-rw-r--.  1 ray ray 107195640 Apr 18 12:09 NVIDIA-Linux-x86_64-418.56.run

Step 3	-	Install all prerequisite:
	dnf -y groupinstall "Development Tools"
	dnf -y install dkms "kernel-devel-uname-r == $(uname -r)"

[root@ ~]# dnf -y groupinstall "Development Tools"
Adobe Systems Incorporated                                                                  13 kB/s | 2.9 kB     00:00    
Fedora Modular 29 - x86_64                                                                  38 kB/s |  17 kB     00:00    
Fedora Modular 29 - x86_64 - Updates                                                        49 kB/s |  17 kB     00:00    
Fedora 29 - x86_64 - Updates                                                                44 kB/s |  17 kB     00:00    
Fedora 29 - x86_64                                                                          45 kB/s |  18 kB     00:00    
google-chrome                                                                               14 kB/s | 1.3 kB     00:00    
Opera packages                                                                              3.9 kB/s | 2.9 kB     00:00    
RPM Fusion for Fedora 29 - Free - Updates                                                   6.4 kB/s | 3.6 kB     00:00    
RPM Fusion for Fedora 29 - Free                                                             5.2 kB/s | 3.2 kB     00:00    
RPM Fusion for Fedora 29 - Nonfree - Updates                                                6.0 kB/s | 3.7 kB     00:00    
RPM Fusion for Fedora 29 - Nonfree                                                          5.3 kB/s | 3.2 kB     00:00    
ZeroTier, Inc. RPM Release Repository                                                       33 kB/s | 2.9 kB     00:00    
Dependencies resolved.
=================================================================================================================================================
 Package                           Architecture                     Version                              Repository                         Size
=================================================================================================================================================
Installing Groups:
 Development Tools                                                                                                                              
Transaction Summary
=================================================================================================================================================
Complete!

[root@ ~]# dnf -y install dkms "kernel-devel-uname-r == $(uname -r)"
Last metadata expiration check: 0:01:54 ago on Thu 18 Apr 2019 12:19:22 PM EDT.
Package dkms-2.6.1-2.fc29.noarch is already installed.
Package kernel-devel-4.20.7-200.fc29.x86_64 is already installed.
Dependencies resolved.
Nothing to do.
Complete!

Step 4	-	Disable nouveau drivers by changing the configuration: /etc/default/grub file.  Add the nouveau.modeset-0 into the line with GRUB_CMDLINE_LINUX...  see below:

GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="resume=UUID=df614470-884d-4992-a13c-1665fb0a230e rhgb quiet nouveau.modeset=0"
GRUB_DISABLE_RECOVERY="true"

[root@ ~]# cat /etc/default/grub 
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="resume=UUID=1a1a2bef-b944-4e4e-98b4-132c1f6ae6e3 rhgb quiet nouveau.modeset=0 ipv6.disable=1"
GRUB_DISABLE_RECOVERY="true"

Based on your boot method select one of the following:

BIOS:
$ sudo grub2-mkconfig -o /boot/grub2/grub.cfg
EFI:
$ sudo grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg

[root@ ~]# efibootmgr
BootCurrent: 0005
Timeout: 1 seconds
BootOrder: 0005,0004,0008,0003,0000,0001,0002,0006,0007
Boot0000* WD Passport X 107D 1073
Boot0001* SATA1:TOSHIBA HDWE150         
Boot0002* UEFI:CD/DVD Drive
Boot0003* UEFI: Built-in EFI Shell 
Boot0004* Windows Boot Manager
Boot0005* Fedora
Boot0006* UEFI:Removable Device
Boot0007* UEFI:Network Device
Boot0008* UEFI: WD Passport X 107D 1073

This system uses EFI:

[root@ ~]# grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.0.7-200.fc29.x86_64
Found initrd image: /boot/initramfs-5.0.7-200.fc29.x86_64.img
Found linux image: /boot/vmlinuz-4.20.13-200.fc29.x86_64
Found initrd image: /boot/initramfs-4.20.13-200.fc29.x86_64.img
Found linux image: /boot/vmlinuz-4.20.7-200.fc29.x86_64
Found initrd image: /boot/initramfs-4.20.7-200.fc29.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-aab0b8d0f5e8411fbc2d59706da01fc1
Found initrd image: /boot/initramfs-0-rescue-aab0b8d0f5e8411fbc2d59706da01fc1.img
Found Windows Boot Manager on /dev/sdb1@/EFI/Microsoft/Boot/bootmgfw.efi
Adding boot menu entry for EFI firmware configuration
done

Step 5	-	Reboot

Step 6	-	NVIDIA drviers must be installed when Xorg is stopped:

# systemctl isolate multi-user.target

Step 7	-	Install NVDIA drivers

# cd /home/ray/NVIDIA/
# bash NVIDIA-Linux-x86_64-*

When prompted answer Yes to installation of NVIDIA 32 bit compatibiltiy libriaries, overwrite existing 'libglvnd' files and automatica update of your X configuration file.

Step 8	-	Reboot system

WARNING
When using GDM display manager after login you may be greeted with a black screen. Please note that at the time of writing this issue sits with GDM and you are recommended to temporarily switch to some other display manager like for example sddm:
$ sudo dnf install sddm 
$ sudo systemctl disable gdm
$ sudo systemctl enable sddm
$ sudo reboot
All done. The Nvidia driver should now be installed on your Fedora 29 Linux system. Reboot your system now, login and run nvidia-settings to further configure your Nvidia graphic card settings.

I had an old Nvidia 770 installed before that ran 2 monitors (neither displayport) without issue. I would really love to use my 2x 32in monitors as that is why I paid for them and the 1070 video card.

Help would be greatly appreciated.

Thank you

edit to add: I used my laptop to ssh into my desktop and install the drivers.

mrmazda · 05-11-2019, 04:25 AM

I have only the two DisplayPorts on an old ATI HD3470 that works just peachy on F29:

Code:

# inxi -GxxxSMa
System:    Host: fi965 Kernel: 5.0.13-200.fc29.x86_64 x86_64 bits: 64 compiler: gcc v: 8.3.1
           parameters: ro root=LABEL=foofarbaz ipv6.disable=1 net.ifnames=0 audit=0 selinux=0 vga=791
           video=1440x900@60 5
           Desktop: KDE Plasma 5.14.5 tk: Qt 5.11.3 wm: kwin_x11 dm: KDM Distro: Fedora release 29 (Twenty Nine)
Machine:   Type: Desktop Mobo: ASUSTeK model: P5B-Deluxe v: Rev 1.xx serial: MB-1234567890
           BIOS: American Megatrends v: 1238 date: 09/30/2008
Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] RV620 PRO [Radeon HD 3470] vendor: Dell driver: radeon
           v: kernel bus ID: 01:00.0 chip ID: 1002:95c0
           Display: server: Fedora Project X.org 1.20.4 driver: modesetting unloaded: fbdev,vesa alternate: ati
           compositor: kwin_x11 resolution: 2560x1440~60Hz, 1920x1200~60Hz
           OpenGL: renderer: AMD RV620 (DRM 2.50.0 / 5.0.13-200.fc29.x86_64 LLVM 7.0.1) v: 3.3 Mesa 18.3.6
           compat-v: 3.0 direct render: Yes
# xrandr
Screen 0: minimum 320 x 200, current 2560 x 2640, maximum 8192 x 8192
DP-1 connected primary 2560x1440+0+1200 (normal left inverted right x axis y axis) 598mm x 336mm
   2560x1440     59.95*+  74.92
   1920x1440     75.00
   1856x1392     75.00
   1920x1080     74.91    60.00    50.00    59.94
   1920x1080i    60.00    50.00    59.94
   1680x1050     59.95
   1280x1024     75.02    60.02
   1440x900      59.89...
DP-2 connected 1920x1200+0+0 (normal left inverted right x axis y axis) 519mm x 324mm
   1920x1200     59.95*+
   1920x1080     59.96    60.00    59.94    59.93
   1600x1200     60.00
   1680x1050     59.95    59.88
   1400x1050     59.98    59.98
   1600x900      59.95    59.82
   1280x1024     60.02
   1440x900      59.89...

Did you try using Xorg instead of Wayland?

Wayland can be a problem if Plymouth is installed.

lleb · 05-11-2019, 07:03 AM

I did switch over to GDM, not sure if that is Xorg or Wayland.

mrmazda · 05-12-2019, 12:24 PM

RedHat/Fedora is the driving force behind GTK/Gnome and Wayland, so on F29 Gnome on Wayland the default. Last I used Gnome or GDM on purpose was two decades ago, so troubleshooting trouble specific to either or Wayland I can't help with.

What you could try is booting into multi-user and running

Code:

startx /usr/bin/icewm

Icewm is a very small installation and very fast to start. If you get working DisplayPorts there, then at least you'll have reduced the possibilities. You might have to login as root to get Xorg to start. If installed you should be able to select an IceWM session from GDM, but whether it would be in Xorg or Wayland I have no idea. Maybe both would be presented as selections.

lleb · 05-13-2019, 07:50 AM

I will try that tonight when I get home from work. Also going to see if running off my USB live will activate/detect the displaports. And lastly I will try a live win10 USB *ugh*.

lleb · 05-13-2019, 01:04 PM

Ive downloaded slackware, ubuntu, and mint linux live ISO's ill try those as well once Im off work.

sevendogsbsd · 05-13-2019, 01:25 PM

FWIW, I have had ubuntu and mint working over displayport so I know the OS has the capability. This was using a Dell UW3415(?) (34" ultrawide 4k) and a GTX 1050Ti. Last ubuntu version was 17 or 18, Mint was 18-something.

lleb · 05-13-2019, 02:06 PM

well progress. Fedora 29 live detects and runs 1 of the 2 displayport monitors. I can also get 1x HDMI and 1x Displayport to function with Fedora 29 live. What do I need to check in order to get this data moved over to my OS running on the HDD. Note I am sure the Live vs is running the open source nv drivers, not the Nvidia drivers.

edit to add:

Code:

[root@localhost-live ~]# lshw | grep display
           *-display
[root@localhost-live ~]# xrandr -q
Can't open display 
[root@localhost-live ~]# lshw | grep -A10 display
           *-display
                description: VGA compatible controller
                product: GP104 [GeForce GTX 1070]
                vendor: NVIDIA Corporation
                physical id: 0
                bus info: pci@0000:1c:00.0
                version: a1
                width: 64 bits
                clock: 33MHz
                capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
                configuration: driver=nouveau latency=0

Why would the Live vs not be able to open display?

mrmazda · 05-13-2019, 02:35 PM

inxi -Gxx
reports both kernel and DDX drivers, both those available, and those active

xrandr
reports names of connectors that are found to be connected to displays

Both need to be run from a GUI terminal.

Live media doesn't include proprietary software. To match what live media does to your installation you would have to have the proprietary NVidia drivers perfectly purged according to their installation instructions.

lleb · 05-13-2019, 04:15 PM

all of the above output was from the GUI terminal.

LiveUSA

Code:

[root@localhost-live ~]# inxi -Gxx
Graphics:  Device-1: NVIDIA GP104 [GeForce GTX 1070] vendor: Gigabyte driver: nouveau v: kernel bus ID: 1c:00.0 
           chip ID: 10de:1b81 
           Display: server: X.org 1.20.1 driver: nouveau compositor: gnome-shell tty: 140x71 
           Message: Advanced graphics data unavailable in console for root.

HDD OS

Code:

[root@desk ~]# inxi -Gxx
Graphics:  Device-1: NVIDIA GP104 [GeForce GTX 1070] vendor: Gigabyte driver: nvidia v: 418.56 bus ID: 1c:00.0 
           chip ID: 10de:1b81 
           Display: server: Fedora Project X.org 1.20.4 driver: nvidia compositor: gnome-shell 
           resolution: 2560x1440~60Hz, 2560x1440~60Hz 
           OpenGL: renderer: GeForce GTX 1070/PCIe/SSE2 v: 4.6.0 NVIDIA 418.56 direct render: Yes

Now here ya go. I now have both monitors working same as with LiveUSB: 1x Displayport, 1x HDMI. I would love to have both Displayports functioning, but this is a positive step in the right direction. Mind you all I have done is boot into the LiveUSB and back into the HDD.

mrmazda · 05-14-2019, 01:01 AM

Inxi confirms live uses the nouveau DDX while installed uses the proprietary, but it doesn't report any of the output names.

Quote:

Originally Posted by lleb

I would love to have both Displayports functioning

If you're getting 2560x1440 from both displays while using DP for one and HDMI for the other, performance shouldn't shouldn't be any different between the two.

What does 'xrandr --listproviders' report now with one on each working?

lleb · 05-14-2019, 01:33 PM

True, but its a kick in the butt when you have hardware and are unable to use what you paid for.

Code:

[root@desk ~]# xrandr --listproviders
Providers: number : 1
Provider 0: id: 0x1b9 cap: 0x1, Source Output crtcs: 4 outputs: 8 associated providers: 0 name:NVIDIA-0
[root@desk ~]# xrandr
Screen 0: minimum 8 x 8, current 5120 x 1440, maximum 32767 x 32767
DVI-D-0 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected 2560x1440+0+0 (normal left inverted right x axis y axis) 699mm x 393mm
   2560x1440     59.95*+
   2048x1152     60.00  
   1920x1200     59.88  
   1920x1080     60.00    59.94    50.00    29.97    25.00    23.98    60.05    60.00    50.04  
   1680x1050     59.95  
   1600x1200     60.00  
   1600x900      60.00  
   1280x1024     75.02    60.02  
   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-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 connected primary 2560x1440+2560+0 (normal left inverted right x axis y axis) 699mm x 393mm
   2560x1440     59.95*+
   2880x1620     60.00  
   2048x1152     60.00  
   1920x1200     59.88  
   1920x1080     60.00    59.94    50.00    29.97    25.00    23.98  
   1680x1050     59.95  
   1600x1200     60.00  
   1600x900      60.00  
   1280x1024     75.02    60.02  
   1280x720      60.00    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-5 disconnected (normal left inverted right x axis y axis)

mrmazda · 05-14-2019, 03:03 PM

Listproviders shows 6 DisplayPorts, while AFAIK, the card only has 3. It's a bit puzzling that you're shown connected to the 5th.

If it exists, how about sharing /etc/X11/xorg.conf? Maybe something in it is forcing something(s) on or off.

If you go into BIOS setup, does every GTX port you try produce expected output?

Have you tried every possible combination of two DisplayPorts and no HDMI ports with your installed F29?

Did you ever try the installed F29 using the GTX with the "Modesetting" (default, included in the server rpm) FOSS DDX or the Nouveau FOSS DDX (xorg-x11-drv-nouveau, as was used with your live F29 boot)? If you could remove the NVidia software and make any video port combination work using modesetting or nouveau, then you would know this has to be an NVidia software problem, not F29 or kernel.

lleb · 05-15-2019, 07:34 AM

mrmazda, there are only 3 DP as you mention. No clue why it is showing 6 either. Here is the xorg.conf

Code:

$ cat /etc/X11/xorg.conf
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 418.56


Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/input/mice"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Unknown"
    HorizSync       28.0 - 33.0
    VertRefresh     43.0 - 72.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

I have looked in my BIOS, sadly no settings for the display found in there. Le sigh*

No I did not attempt to reinstall my OS.

mrmazda · 05-15-2019, 08:39 AM

That xorg.conf doesn't seem to take into account that you have multiple displays. I'd try renaming it, and rerunning Xorg