No Signal on second display

Support Graphics & Display
1

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?

2

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
3

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4

Thank you for the feedback.

5