Hello Friends!
I have a bit of a problem when it comes to getting 3 display link DL6 dual hdmi port devices to work properly in RHEL and in Ubuntu. Both exhibit the same issue.
The issue that I'm facing is that out of the 6 properly connected monitors via displaylink 4 only work and show up on the list of available monitors.
If I where to unplug 1 displaylink USB device the non working monitor would work.
It feels like there's a cap of only 4 monitors... I've attempted adjusting the initial monitors in evdi.conf and to no avail.
To make matters more interesting, if you'd take the same machine with the same displays/configuration and load up windows everything works fine...
So why isn't Linux getting much love displaylink??
If it helps here is diagnostic stuff.
Quote:
$ ls -1 /sys/class/drm
xrandr | egrep 'onnect|creen|\*' | grep -v disconn | sort -r
card0
card0-DP-1
card0-DP-2
card0-DP-3
card0-HDMI-A-1
card0-HDMI-A-2
card1
card1-DP-4
card1-DP-5
card1-DP-6
card1-HDMI-A-3
card2
card2-DVI-I-1
card3
card3-DVI-I-2
card4
card4-DVI-I-3
card5
card5-DVI-I-4
card6
card6-DVI-I-5
card7
card7-DVI-I-6
renderD128
renderD129
version
Screen 0: minimum 8 x 8, current 11520 x 1080, maximum 32767 x 32767
HDMI-1 connected 1920x1080+9600+0 (normal left inverted right x axis y axis) 1872mm x 1053mm
DVI-I-5-4 connected 1920x1080+7680+0 (normal left inverted right x axis y axis) 477mm x 268mm
DVI-I-4-3 connected 1920x1080+5760+0 (normal left inverted right x axis y axis) 477mm x 268mm
DVI-I-3-2 connected 1920x1080+3840+0 (normal left inverted right x axis y axis) 477mm x 268mm
DVI-I-2-1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 477mm x 268mm
DP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 1872mm x 1053mm
1920x1080 60.00*+ 59.94 50.00 29.97 25.00 23.98
1920x1080 60.00*+ 59.94 50.00 29.97 25.00 23.98
1920x1080 60.00*+
1920x1080 60.00*+
1920x1080 60.00*+
1920x1080 60.00*+
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