codylamp
December 12th, 2019, 07:10 PM
Both displays are detected in xrandr and in the settings GUI; however, only the primary monitor actually displays. The monitor actually goes into power saving mode after a time. This occurs in both extended and mirrored configurations. If I disable the primary monitor and choose to only display on the second monitor, the second monitor works. This configuration also works flawlessly in Windows.
The strangest behavior I've observed is after the machine is woken after sleep/suspend, occasionally the second monitor will start working without issue; however, in other instances, neither monitor works.
Relevant Details:
Fresh installation of Ubuntu 19.10
Dual Nvidia GTX 970 in SLI
Monitors connected via Displayport in a daisy chain
Using nvidia-driver-435
ubuntu-desktop:~$ xrandr --queryScreen 0: minimum 8 x 8, current 4480 x 1440, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
DP-0.8 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 597mm x 336mm
2560x1440 59.95*+
2048x1152 60.00
1920x1200 59.88
1920x1080 60.00 59.94 50.00 29.97 25.00 23.98
1680x1050 59.95
1600x1200 60.00
1280x1024 75.02 60.02
1280x720 60.00 59.94 50.00
1200x960 59.90
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x480 59.94
640x480 75.00 59.94 59.93
DVI-I-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DVI-D-0 disconnected (normal left inverted right x axis y axis)
DP-0.1 connected 1920x1200+2560+0 (normal left inverted right x axis y axis) 518mm x 324mm
1920x1200 59.95*+ 59.88
1920x1080 60.00 59.94 50.00 29.97 25.00 23.98
1600x1200 60.00
1280x1024 75.02 60.02
1280x720 60.00 59.94 50.00
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x480 59.94
640x480 75.00 59.94 59.93
VGA-2-1 disconnected (normal left inverted right x axis y axis)
HDMI-2-1 disconnected (normal left inverted right x axis y axis)
HDMI-2-2 disconnected (normal left inverted right x axis y axis)
The strangest behavior I've observed is after the machine is woken after sleep/suspend, occasionally the second monitor will start working without issue; however, in other instances, neither monitor works.
Relevant Details:
Fresh installation of Ubuntu 19.10
Dual Nvidia GTX 970 in SLI
Monitors connected via Displayport in a daisy chain
Using nvidia-driver-435
ubuntu-desktop:~$ xrandr --queryScreen 0: minimum 8 x 8, current 4480 x 1440, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
DP-0.8 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 597mm x 336mm
2560x1440 59.95*+
2048x1152 60.00
1920x1200 59.88
1920x1080 60.00 59.94 50.00 29.97 25.00 23.98
1680x1050 59.95
1600x1200 60.00
1280x1024 75.02 60.02
1280x720 60.00 59.94 50.00
1200x960 59.90
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x480 59.94
640x480 75.00 59.94 59.93
DVI-I-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DVI-D-0 disconnected (normal left inverted right x axis y axis)
DP-0.1 connected 1920x1200+2560+0 (normal left inverted right x axis y axis) 518mm x 324mm
1920x1200 59.95*+ 59.88
1920x1080 60.00 59.94 50.00 29.97 25.00 23.98
1600x1200 60.00
1280x1024 75.02 60.02
1280x720 60.00 59.94 50.00
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x480 59.94
640x480 75.00 59.94 59.93
VGA-2-1 disconnected (normal left inverted right x axis y axis)
HDMI-2-1 disconnected (normal left inverted right x axis y axis)
HDMI-2-2 disconnected (normal left inverted right x axis y axis)