I have my minipc server Gigabite Brix 4105 and the monitor is not connected to
it. Installed Ubuntu Desktop 12.04.2.
I control it from my PC using VNC and no visual artifacts.
This is done through 20-intel.conf
Section "Device"
Identifier "intelgpu0"
Driver "intel"
Option "VirtualHeads" "1"
Option "TearFree" "true"
Option "TripleBuffer" "true"
Option "DRI" "false"
EndSection
I added the following commands to my startup script:
xrandr --newmode "1920x1080" 173.00 1920 2048 2248 2576 1080 1083 1088 1120
-hsync +vsync
xrandr --addmode VIRTUAL1 1920x1080
xrandr --output VIRTUAL1 --mode 1920x1080 --right-of HDMI1
xrandr -d :0 --output VIRTUAL1 --primary --auto
Generate modeline with gtf or cvt (Replace 1920 1080 with your preferred
resolution). Here is what I get:
$ cvt 1920 1080
# 1920x1080 59.96 Hz (CVT 2.07M9) hsync: 67.16 kHz; pclk: 173.00 MHz
Modeline "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120
-hsync +vsync
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https://bugs.launchpad.net/bugs/1867668
Title:
Visual artifacts in Gnome Shell when using the old 'intel' Xorg driver
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