[PLUG] nVidia config issue

[Dick Steffens]

After more fooling around I think I understand a little more, but still 
don't know why it doesn't work right.

In xorg.conf the last section looks like this:


Section "Screen"
     Identifier     "Screen0"
     Device         "Device0"
     Monitor        "Monitor0"
     DefaultDepth    24
     Option         "Stereo" "0"
     Option         "nvidiaXineramaInfoOrder" "CRT-1"
     Option         "metamodes" "DVI-I-1: nvidia-auto-select +1280+0, 
VGA-0: nvidia-auto-select +0+0"
     Option         "SLI" "Off"
     Option         "MultiGPU" "Off"
     Option         "BaseMosaic" "off"
     SubSection     "Display"
         Depth       24
     EndSubSection
EndSection

The line with "metamodes" looks like it should be doing what I want. And 
when I log in, /etc/X11/xorg.conf does have that line. But that's not 
what the displays look like. Instead they are mirrored, and the DVI 
monitor has the launch bar on the bottom. And running nvidia-settings 
lets me grab the image of the DVI monitor and move it to the right, 
which uncovers the VGA monitor. I click Apply, and the launch and menu 
bars move to the VGA monitor, and all is well.

So it seems to me that something isn't reading and applying that line in 
xorg.conf. And while it's a simple thing to run nvidia-settings, I 
shouldn't have to do it at each log in. (BTW, it doesn't matter whether 
I launch nvidia-settings from a terminal, or click on Applications > 
Settings > NVIDIA X Server Settings. Both approaches launch the same tool.

That section of xorg.conf is identical on both ENU-1, my Ubuntu 18.04 
machine, as on ENU-2, my Slackware 14.2 machine. On ENU-1 I have a 
GeForce 210, and on ENU-2 I have a GeForce GT 610. The NVIDIA Driver 
Version on ENU-1 is 340.107, and the NVIDIA Driver Version on ENU-2 is 
390.87. Is it possible that I should drop back to 340.107 on ENU-2? I 
see on:

https://www.nvidia.com/Download/driverResults.aspx/135161/en-us

that 340.107 supports both models.



-- 
Regards,

Dick Steffens