How do I get 1280x1024 resolution?

I'm coming back to lubuntu after a few years. I'm on an AMD Athlon x64 with 2.75 GB ram. I have installed lubuntu 18.04 Alternate 64-bit. I also tried the 18.04 Desktop 64-bit.

A few years ago, I was able to get 1280x1024 res (on a different computer), but not this time. For now, I would even be happy with a command that I have to enter each time I boot. I know the monitor can handle 1280x1024.

Any help appreciated. Otherwise, everything is great.

$ xrandr
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096
VGA-1 connected primary 1024x768+0+0 (normal left inverted right x axis y
axis) 0mm x 0mm
1024x768 60.00*
800x600 60.32 56.25
848x480 60.00
640x480 59.94 

Here's all I know at this point:

*-display
description: VGA compatible controller
product: C61 [GeForce 6150SE nForce 430]
vendor: NVIDIA Corporation
physical id: d
bus info: pci@0000:00:0d.0
version: a2
width: 64 bits
clock: 66MHz
capabilities: pm msi vga_controller bus_master cap_list rom
configuration: driver=nouveau latency=0
resources: irq:23 memory:fd000000-fdffffff memory:d0000000-dfffffff
memory:fc000000-fcffffff memory:c0000-dffff

This works for me but must be re-entered after each boot.

xrandr --newmode "1280x1024_60.00" 108.88 1280 1360 1496 1712 1024
1025 1028 1060 -HSync +Vsync
xrandr --addmode VGA-1 1280x1024_60.00
xrandr --output VGA-1 --mode 1280x1024_60.00

Newbies like me should follow this guide:

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