I'm running Debian on my laptop (Thinkpad T420 if it matters), and what I am trying to do is setup the native resolution. I want it to be 1366x768 but it's stuck at 1024x768 because when I go to Monitor Preferences, it says Monitor: Unknown. I've tried several things such as xrandr --addmode VGA1 1366x768_60.00 and all the steps that contains that I've found on different websites. Some say remove xorg.conf but I don't have that in my X11 folder. Have any of you guys encountered this problem before?Also I'm trying to setup 2 monitors but again, they don't show up in Monitor Preferences.
Debian monitor unknown and dual monitor setup
debian;xorg;monitors