Triple Display : Linux Mint - One Primary Display (1920x1080) and Two Secondary Displays - Projectors at 1920x1080 each
by roahanramesh from LinuxQuestions.org on (#6HDN9)
Hello,
My company currently deals with developing gaming softwares primarily in simulators. At present, we are using Windows 11. System Configuration is : Intel i7, NVidia Graphics Card RTX 3080.
Hence at present, we are using Nvidia Surround to fulfil our needs of merging the two projectors as one display. The two projectors are connected to HDMI ports (0 and 1 respectively), while the primary monitor is connected to DP-1.
Having observed the NVidia Surround Setup, I noticed the following.
1. During merge displays (for projectors), the control panel automatically creates one screen with resolution 3840x1080. When the projectors are connected, we get size as 508mm x 295mm respectively.
2. The next step involves adding the monitor and setting it as primary display. During this sequence, we noticed the monitor being a bit bigger gets readjusted to match the size of the combined display as mentioned in (1)
I am trying to replicate the same effect in Linux through X-Randr. From my understanding, the following steps were performed.
1. Created a frame buffer of size 5760x1080 - using xrandr --fb 5760x1080 - a display to house the primary monitor and the two projectors.
2. Create a virtual display by combining the two projectors (connected to HDMI-1 and HDMI-0) using
xrandr --setmonitor Projector 3840/508x1080/296+0+0 HDMI-0,HDMI-1
3 Create a virtual display for the primary monitor (DP-1)
xrandr --setmonitor primary 1920/508x1080/296+0+0 DP-1
Points (2) and (3) mentioned above, would in theory replicate Windows' Nvidia Surround Display.
4. The last step would be to output the following command.
xrandr --fb 5760x1080 --output DP-0 --off --output DP-1 --primary --mode 1920x1080 --pos 0x0 --rotate normal --output HDMI-0 --mode 1920x1080 --pos 3840x0 --rotate normal --output HDMI-1 --mode 1920x1080 --pos 1920x0 --rotate normal --output USB-C-0 --off
Please let me know if my assumptions are correct.
Thanks.
My company currently deals with developing gaming softwares primarily in simulators. At present, we are using Windows 11. System Configuration is : Intel i7, NVidia Graphics Card RTX 3080.
Hence at present, we are using Nvidia Surround to fulfil our needs of merging the two projectors as one display. The two projectors are connected to HDMI ports (0 and 1 respectively), while the primary monitor is connected to DP-1.
Having observed the NVidia Surround Setup, I noticed the following.
1. During merge displays (for projectors), the control panel automatically creates one screen with resolution 3840x1080. When the projectors are connected, we get size as 508mm x 295mm respectively.
2. The next step involves adding the monitor and setting it as primary display. During this sequence, we noticed the monitor being a bit bigger gets readjusted to match the size of the combined display as mentioned in (1)
I am trying to replicate the same effect in Linux through X-Randr. From my understanding, the following steps were performed.
1. Created a frame buffer of size 5760x1080 - using xrandr --fb 5760x1080 - a display to house the primary monitor and the two projectors.
2. Create a virtual display by combining the two projectors (connected to HDMI-1 and HDMI-0) using
xrandr --setmonitor Projector 3840/508x1080/296+0+0 HDMI-0,HDMI-1
3 Create a virtual display for the primary monitor (DP-1)
xrandr --setmonitor primary 1920/508x1080/296+0+0 DP-1
Points (2) and (3) mentioned above, would in theory replicate Windows' Nvidia Surround Display.
4. The last step would be to output the following command.
xrandr --fb 5760x1080 --output DP-0 --off --output DP-1 --primary --mode 1920x1080 --pos 0x0 --rotate normal --output HDMI-0 --mode 1920x1080 --pos 3840x0 --rotate normal --output HDMI-1 --mode 1920x1080 --pos 1920x0 --rotate normal --output USB-C-0 --off
Please let me know if my assumptions are correct.
Thanks.