Debian 11, Nvidia Quadro P400 card, 2xiiyama 2560x1440 monitors, and the nvidia
driver.
I am trying to get 2 iiyama monitors rotated to portrait mode to show a single
2880x2560 screen, but so far only the left monitor lights up with a 1440x2560
screen.
The Quadro P400 has 3 mini-DisplayPort connectors numbered 1, 2 and 3 starting
from the motherboard.
,-------------------,
DP-4 3 |
Right monitor DP-0 2 Quadro P400 |
Left monitor DP-2 1 |
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM Motherboard
xrandr reports that these ports are seen as 1 -> DP-2, 2 -> DP-0, 3 -> DP-4.
I connect mini-DisplayPort 1 (DP-2) to the left side monitor and
mini-DisplayPort 2 (DP-0) to the right monitor. There is nothing connected to
port 3. I used nvidia-select to try to set up the screen. This produces a file
/etc/X11/xorg.conf in which I have
screen 0:
Option "metamodes" "DP-2: nvidia-auto-select +0+0 {rotation=left}"
screen 1:
Option "metamodes" "DP-0: nvidia-auto-select +1440+0 {rotation=left,
AllowGSYNC=Off}"
This uses only the left monitor. The right is not even powered on.
Before I plunge into the details, does anyone have a working xorg.conf for such
a setup? I would prefer to start with something that works rather than describe
in detail something that doesn't work.
Roger
Quadro P400 data sheet:
https://www.nvidia.com/content/dam/en-zz/Solutions/design-visualization/productspage/quadro/quadro-desktop/quadro-pascal-p400-data-sheet-us-nv-704503-r1.pdf
