I’ve solved the issue.
I’m not 100% sure how (since apparently I can’t re-created it right now lol).
I’ve edited/created the monitor.sh script in the ~/.screenlayout/ (you can use also ArandR with gui to do this, it’s imperative that you name the file monitor.sh)
My monitor.sh (it’s set to VGA1 and 1600x900 as resolution)
#!/bin/sh
xrandr --output DP1 --off --output DP2 --off --output HDMI1 --off --output HDMI2 --off --output VGA1 --primary --mode 1600x900 --pos 0x0 --rotate normal --output VIRTUAL1 --off
It appears that xrandr was booting me out of the session when trying to determine my resolution on newer kernels.