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tmick 02-17-2024 02:47 PM

Dual Monitor weirdness
 
So I have dual GEForce GTX 1080 cards on a Hardware bridge. The left Monitor will flash on for a few seconds and then goes black. IF I run
Code:

nvidia-detect
Detected NVIDIA GPUs:
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP104 [GeForce GTX 1080] [10de:1b80] (rev a1)
02:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP104 [GeForce GTX 1080] [10de:1b80] (rev a1)

Checking card:  NVIDIA Corporation GP104 [GeForce GTX 1080] (rev a1)
Your card is supported by the default drivers.
It is recommended to install the
    nvidia-driver
package.

Checking card:  NVIDIA Corporation GP104 [GeForce GTX 1080] (rev a1)
Your card is supported by the default drivers.
It is recommended to install the
    nvidia-driver
package.

I'm on Debian Trixie
Code:

neofetch
 OS: Debian GNU/Linux trixie/sid x86_64
 ,$$P'              `$$$.    Kernel: 6.6.15-amd64
',$$P      ,ggs.    `$$b:  Uptime: 47 mins
`d$$'    ,$P"'  .    $$$    Packages: 3806 (dpkg)
 $$P      d$'    ,    $$P    Shell: bash 5.2.21
 $$:      $$.  -    ,d$$'    Resolution: 1920x1080, 1920x1080
 $$;      Y$b._  _,d$P'      DE: MATE 1.26.1
 Y$$.    `.`"Y$$$$P"'        WM: Metacity (Marco)
 `$$b      "-.__              Theme: YaruGreen [GTK2/3]
  `Y$$                        Icons: menta [GTK2/3]
  `Y$$.                      Terminal: mate-terminal
    `$$b.                    Terminal Font: Monospace 13
      `Y$$b.                CPU: Intel i7-7700K (8) @ 4.500GHz
          `"Y$b._            GPU: NVIDIA GeForce GTX 1080
              `"""            GPU: NVIDIA GeForce GTX 1080
                              Memory: 3416MiB / 32038MiB

Code:

xrandr
Screen 0: minimum 8 x 8, current 3840 x 1080, maximum 32767 x 32767
DVI-D-0 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected primary 1920x1080+1920+0 (normal left inverted right x axis y axis) 598mm x 336mm
  1920x1080    60.00*+  59.94    50.00    60.05    60.00    50.04 
  1600x900      60.00 
  1280x1024    75.02    60.02 
  1280x720      75.00    60.00    59.94    50.00 
  1152x864      75.00 
  1024x768      75.03    60.00 
  800x600      75.00    60.32 
  720x576      50.00 
  720x480      59.94 
  640x480      75.00    59.94    59.93 
DP-0 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 598mm x 336mm
  1920x1080    60.00*+
  1600x900      60.00 
  1280x1024    75.02    60.02 
  1280x720      74.78    60.00 
  1152x864      75.00 
  1024x768      75.03    60.00 
  800x600      75.00    60.32 
  640x480      75.00    59.94 
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)

How do I get dual monitors working?

GlennsPref 02-22-2024 11:42 PM

Hi, check out this appendix from the nVidia website...

Code:

https://download.nvidia.com/XFree86/Linux-x86_64/430.14/README.html
Option "SLI" "string"
Option "nvidiaXineramaInfoOverride" "string"

see links at the bottom...

Chapter 22. Using the X Composite Extension
Chapter 29. Configuring SLI and Multi-GPU FrameRendering

I hope this helps.

tmick 02-23-2024 04:59 PM

Turned out to be a bad monitor, replaced and it's working great now


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