Second monitor connected using xrandr is not responsive

[Sindile Bidla]

Hello,

I am trying to connect a second monitor through HDMI port of the laptop,
but I am not getting an output when I switch either to NVIDIA or Hybrid
Graphics (NVIDIA/Intel).

OS="Pop!_OS", VERSION="19.10"

Using Acer Aspire V17 Nitro (VN7-792G-77YX)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev
06)
01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 960M] (rev a2)

xrandr output
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y
axis) 381mm x 214mm
1920x1080 60.00*+ 59.97 59.96 59.93
1680x1050 59.95 59.88
1600x1024 60.17
1400x1050 59.98
1600x900 59.99 59.94 59.95 59.82
1280x1024 60.02
1440x900 59.89
1400x900 59.96 59.88
1280x960 60.00
1440x810 60.00 59.97
1368x768 59.88 59.85
1360x768 59.80 59.96
1280x800 59.99 59.97 59.81 59.91
1152x864 60.00
1280x720 60.00 59.99 59.86 59.74
1024x768 60.04 60.00
960x720 60.00
928x696 60.05
896x672 60.01
1024x576 59.95 59.96 59.90 59.82
960x600 59.93 60.00
960x540 59.96 59.99 59.63 59.82
800x600 60.00 60.32 56.25
840x525 60.01 59.88
864x486 59.92 59.57
800x512 60.17
700x525 59.98
800x450 59.95 59.82
640x512 60.02
720x450 59.89
700x450 59.96 59.88
640x480 60.00 59.94
720x405 59.51 58.99
684x384 59.88 59.85
680x384 59.80 59.96
640x400 59.88 59.98
576x432 60.06
640x360 59.86 59.83 59.84 59.32
512x384 60.00
512x288 60.00 59.92
480x270 59.63 59.82
400x300 60.32 56.34
432x243 59.92 59.57
320x240 60.05
360x202 59.51 59.13
320x180 59.84 59.32
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)

I have to run  xrandr --auto first before get-edid to get output from the
external monitor connected via HDMI

sudo get-edid | parse-edid

Section "Monitor"
Identifier "SMS27A550H"
ModelName "SMS27A550H"
VendorName "SAM"
# Monitor Manufactured week 27 of 2011
# EDID version 1.3
# Digital Display
DisplaySize 600 340
Gamma 2.20
Option "DPMS" "true"
Horizsync 30-81
VertRefresh 56-75
# Maximum pixel clock is 170MHz
#Not giving standard mode: 1600x1200, 60Hz
#Not giving standard mode: 1280x1024, 60Hz
#Not giving standard mode: 1280x960, 60Hz
#Not giving standard mode: 1280x800, 60Hz
#Not giving standard mode: 1440x900, 60Hz
#Not giving standard mode: 1680x1050, 60Hz
#Not giving standard mode: 1152x864, 75Hz
#Not giving standard mode: 1440x900, 75Hz

#Extension block found. Parsing...
Modeline "Mode 10" 74.25 1920 2448 2492 2640 540 542 547 562 +hsync +vsync
interlace
Modeline "Mode 0" 148.50 1920 2008 2052 2200 1080 1084 1089 1125 +hsync
+vsync
Modeline "Mode 1" 74.25 1280 1390 1430 1650 720 725 730 750 +hsync +vsync
Modeline "Mode 2" 148.500 1920 2008 2052 2200 1080 1084 1089 1125 +hsync
+vsync
Modeline "Mode 3" 74.250 1280 1390 1420 1650 720 725 730 750 +hsync +vsync
Modeline "Mode 4" 148.500 1920 2448 2492 2640 1080 1084 1089 1125 +hsync
+vsync
Modeline "Mode 5" 74.250 1920 2008 2052 2200 1080 1082 1087 1125 +hsync
+vsync interlace
Modeline "Mode 6" 74.250 1920 2448 2492 2640 1080 1082 1089 1125 +hsync
+vsync interlace
Modeline "Mode 7" 74.250 1280 1720 1760 1980 720 725 730 750 +hsync +vsync
Modeline "Mode 8" 27.027 720 736 798 858 480 489 495 525 -hsync -vsync
Modeline "Mode 9" 27.000 720 732 796 864 576 581 586 625 -hsync -vsync
Modeline "Mode 11" 74.25 1920 2008 2052 2200 540 542 547 562 +hsync +vsync
interlace
Modeline "Mode 12" 74.25 1280 1720 1760 1980 720 725 730 750 +hsync +vsync
Modeline "Mode 13" 27.00 720 732 796 864 576 581 586 625 -hsync -vsync
Option "PreferredMode" "Mode 10"
EndSection

Here is the out of Xorg.o.log - I could not see any errors

https://pastebin.com/bUG3PTUH


I did also try the following

xrandr --addmode HDMI-1 1920x1080
xrandr --output HDMI-1 --mode 1920x1080 --above eDP-1

When reconnecting I get an output on the external monitor, but with the
following issues as shown in the following images:

https://pasteboard.co/J65IB4Y.png
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