After restarting my server without a monitor connected, TeamViewer is extremely slow. But if I restart with a monitor it runs fine. How can I get it working like normal without a monitor attached?

2 Answers

Install a dummy server:

sudo apt-get install xserver-xorg-video-dummy-lts-xenial

Add a /etc/X11/xorg.conf file with the following contents:

Section "Device" Identifier "Configured Video Device" Driver "dummy" EndSection Section "Monitor" Identifier "Configured Monitor" HorizSync 31.5-48.5 VertRefresh 50-70 EndSection Section "Screen" Identifier "Default Screen" Monitor "Configured Monitor" Device "Configured Video Device" DefaultDepth 24 SubSection "Display" Depth 24 Modes "1024x800" EndSubSection EndSection
1

Adding a fake monitor fixes the problem:

sudo apt install xserver-xorg-video-dummy sudo wget -P /etc/X11
2

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