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Old 06-02-2020, 08:39 AM   #1
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trying to use my android device as 3rd display


I currently use usb-c to HDMI to a my second screen monitor.

I want to extend this display so I can VNC the extra virtual display to my android.

I am following commands

gtf 1080 2280 59

xrandr --newmode "1080x2280_59.00" 208.13 1080 1168 1288 1496 2280 2281 2284 2358 -HSync +Vsync

xrandr --addmode DP-2 1080x2280_59.00

xrandr --output DP-2 --mode 1080x2280_59.00 --right-of eDP-1
xrandr: Configure crtc 2 failed

The last command is failing with the above message. I am not sure whats wrong ? Is there any way to understand the issue ?
Old 06-03-2020, 08:45 AM   #2
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Can you add "--verbose" to the command and post the output?
Old 06-04-2020, 01:24 PM   #3
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Thanks for looking into this.
this is the output I got.

screen 0: 4920x2280 1298x601 mm 96.25dpi
crtc 2: 1080x2280_59.00 59.00 +3840+0 "DP-2"
xrandr: Configure crtc 2 failed
crtc 0: disable
crtc 1: disable
crtc 2: disable
screen 0: revert
crtc 0: revert
crtc 1: revert
crtc 2: revert


x11vnc, xrandr

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