My setup uses 3 Monitors in Linux Mint.Left is a TV, using 1080p, connected via HDMI-0, centered a 4k monitor via DP-1 and the right one is again a 1080p monitor via DVI-D-0.xrandr --output HDMI-0 --scale 1.5x1.5 --auto --fb 9600x2160 --pos 0x0 --output DP-1 --auto --fb 9600x2160 --pos 2880x0 --output DVI-D-0 --scale 1.5x1.5 --auto --fb 9600x2160 --pos 6720x0works fine, however I need the scaling to be 2 for some applications.I usedxrandr --output HDMI-0 --scale 2x2 --auto --fb 11520x2160 --pos 0x0 --output DP-1 --auto --fb 11520x2160 --pos 3840x0 --output DVI-D-0 --scale 2x2 --auto --fb 11520x2160 --pos 7680x0which would be, what I need.The problem is, the TV and the 1080p monitor on the right become black, sometimes flickering at the very top.A scaling of even 3 works perfectly as well.Is there an alternativ way, I can configure it or can I do something else with xrandr?I am using Linux Mint 17.2 Cinnamon 64-bit Rafaela, have an Nvidia Card, Nvidia X Server Settings are available, but don't support the scaling.
Black screens using xrandr for multiple displays with HiDPI in Linux Mint
nvidia;xrandr