Hi,
I am currently testing manjaro KDE in live mode before installing and my secondary display is not working.
I am on open source drivers with a GTX1060.
Neither powercycling the display nor replugging it helped.
The first display works fine (via DP), but the second (via HDMI) does not.
In xrandr it says disconnected.
[manjaro@manjaro ~]$ xrandr -q
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
DVI-D-1 disconnected primary (normal left inverted right x axis y axis)
DP-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 477mm x 268mm
1920x1080 60.00*+ 50.00 59.94
1680x1050 59.88
1400x1050 59.95
1600x900 60.00
1280x1024 60.02
1440x900 59.90
1280x800 59.91
1280x720 60.00 50.00 59.94
1024x768 60.00
800x600 60.32
720x576 50.00
720x480 60.00 59.94
640x480 60.00 59.94
DP-2 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
On Windows 10 everything works fine.
Can you help me?
Trying with the proprietary drivers the second display gets detected, but isn’t working properly.
It is a 1080p display.
It seemes, the communication between the display and my computer doesn’t work. In the settings window it shows up as HDMI-0 as opposed to Samsung 24’’ or something similar.
[manjaro@manjaro ~]$ xrandr -q
Screen 0: minimum 8 x 8, current 3520 x 1080, maximum 32767 x 32767
DVI-D-0 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected primary 1600x900+1920+0 (normal left inverted right x axis y axis) 0mm x 0mm
1024x768 60.00 +
1600x900 59.82*
1400x900 59.88
1368x768 59.88 59.85
1280x800 59.91 59.81
1280x720 59.86 59.74
1024x576 59.90 59.82
960x540 59.82 59.63
864x486 59.92 59.57
800x600 72.19 60.32 56.25
800x450 59.82
700x450 59.88
684x384 59.88 59.85
640x480 59.94
640x400 59.98 59.88
640x360 59.86 59.83
512x384 60.00
512x288 60.00 59.92
480x270 59.82 59.63
432x243 59.92 59.57
400x300 72.19
320x240 60.05
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 477mm x 268mm
1920x1080 60.00*+ 59.94 50.00
1680x1050 59.95
1600x900 60.00
1440x900 59.89
1400x1050 59.98
1280x1024 60.02
1280x800 59.81
1280x720 60.00 59.94 50.00
1152x864 60.00
1024x768 60.00
800x600 60.32
720x576 50.00
720x480 59.94
640x480 59.94 59.93
DP-5 disconnected (normal left inverted right x axis y axis)
When trying to manually set the resolution, i get an error.
[manjaro@manjaro ~]$ cvt 1920 1080 60
# 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
[manjaro@manjaro ~]$ xrandr --newmode "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync
[manjaro@manjaro ~]$ xrandr --addmode HDMI0 1920x1080_60.00
xrandr: cannot find output "HDMI0"
[manjaro@manjaro ~]$ xrandr --addmode HDMI-0 1920x1080_60.00
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 140 (RANDR)
Minor opcode of failed request: 18 (RRAddOutputMode)
Serial number of failed request: 45
Current serial number in output stream: 46
Welcome to the forum! 
When pasting terminal output, highlight it and use the Preformatted text </> button, not the Quote " button.
Alternatively, add three backticks ` above and below the text:
```
text
```
Please edit your posts accordingly.
Thank you for the feedback.