DTECH DTECH HDMI Dummy Plug 4K Display Emulator Compatible with Windows Mac OSX Linux (fit-Headless, 2 Pack)

Product delivered before shipping time and found as desired.Good Quality Product, working without additional driver (Plug and Play).Packing could be better.. .

Muy buenos de fácil uso y sobre todo muy útiles.

I run a home web server with no monitor, and access it via VNC. When restarting, I'd have to plug it into a monitor or it would default to super low resolution and run at a snail pace. This magnificent little liar, however, has the computer convinced there a high resolution monitor attached to it, so VNC works like normal, delivering a high resolution screen at full speed. Easily worth the money.

DTECH HDMI Dummy Plug 4K Display Emulator works well. I use one on a headless server with very old and flaky on-board video that doesn't output anything unless a monitor is attached before booting. Using the HDMI dummy plug allows me to boot the server without a monitor attached, and attach a monitor later if needed.Output of 'monitor-edid -v' follows:parsing EDID from /sys/class/drm/card1-HDMI-A-2/edidparse_edid: unhandled CEA mode 97parse_edid: unhandled CEA mode 96parse_edid: unhandled CEA mode 101parse_edid: unhandled CEA mode 102parse_edid: unhandled CEA mode 93parse_edid: unhandled CEA mode 94parse_edid: unhandled CEA mode 95parse_edid: unhandled CEA mode 98Name: AOC28E850.HDREISA ID: IDVed11EDID version: 1.3EDID extension blocks: 1Screen size: 62.0 cm x 34.0 cm (27.84 inches, aspect ratio 16/9 = 1.82)Gamma: 2.2Digital signalStandard resolution: 640x480 @ 60 Hz (established timing)Standard resolution: 640x480 @ 75 Hz (established timing)Standard resolution: 800x600 @ 56 Hz (established timing)Standard resolution: 800x600 @ 60 Hz (established timing)Standard resolution: 800x600 @ 72 Hz (established timing)Standard resolution: 800x600 @ 75 Hz (established timing)Standard resolution: 1024x768 @ 60 Hz (established timing)Standard resolution: 1024x768 @ 70 Hz (established timing)Standard resolution: 1024x768 @ 75 Hz (established timing)Standard resolution: 1280x1024 @ 75 Hz (established timing)Standard resolution: 1920x1080 @ 75 Hz, ratio 16/9Standard resolution: 1680x1050 @ 60 Hz, ratio 16/10 (!)Standard resolution: 1600x900 @ 60 Hz, ratio 16/9Standard resolution: 1440x900 @ 60 Hz, ratio 16/10 (!)Standard resolution: 1280x1024 @ 61 Hz, ratio 5/4 (!)Standard resolution: 1280x800 @ 60 Hz, ratio 16/10 (!)Standard resolution: 1280x720 @ 60 Hz, ratio 16/9Standard resolution: 1920x1200 @ 60 Hz, ratio 16/10 (!) # Monitor preferred modeline (60.0 Hz vsync, 67.5 kHz hsync, ratio 16/9, 78 dpi) [6/42] ModeLine "1920x1080" 148.5 1920 2008 2052 2200 1080 1083 1088 1125 -hsync +vsync # Monitor supported modeline (60.0 Hz vsync, 98.7 kHz hsync, ratio 16/10, 104x119 dpi) (bad ratio) ModeLine "2560x1600" 268.5 2560 2608 2640 2720 1600 1603 1609 1646 -hsync +vsync # Monitor supported modeline (60.0 Hz vsync, 88.8 kHz hsync, ratio 16/9, 104 dpi) ModeLine "2560x1440" 241.5 2560 2608 2640 2720 1440 1443 1449 1481 -hsync +vsync # Monitor supported CEA modeline (120.0 Hz vsync, 135.0 kHz hsync, ratio 16/9, 78 dpi) ModeLine "1920x1080" 297 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync # Monitor supported CEA modeline (60.0 Hz vsync, 33.8 kHz hsync, interlaced, ratio 16/9, 78 dpi) ModeLine "1920x1080" 74.25 1920 2008 2052 2200 1080 1084 1094 1125 +hsync +vsync Interlace # Monitor supported CEA modeline (60.0 Hz vsync, 45.0 kHz hsync, ratio 16/9, 52 dpi) ModeLine "1280x720" 74.25 1280 1390 1430 1650 720 725 730 750 +hsync +vsync # Monitor supported CEA modeline (59.9 Hz vsync, 31.5 kHz hsync, ratio 3/2, 29x35 dpi) (bad ratio) ModeLine "720x480" 27 720 736 798 858 480 489 495 525 -hsync -vsync # Monitor supported CEA modeline (59.9 Hz vsync, 31.5 kHz hsync, ratio 4/3, 26x35 dpi) (bad ratio) ModeLine "640x480" 25.175 640 656 752 800 480 490 492 525 -hsync -vsync # Monitor supported CEA modeline (50.0 Hz vsync, 56.2 kHz hsync, ratio 16/9, 78 dpi) ModeLine "1920x1080" 148.5 1920 2448 2492 2640 1080 1084 1089 1125 +hsync +vsync # Monitor supported CEA modeline (50.0 Hz vsync, 31.2 kHz hsync, ratio 5/4, 29x43 dpi) (bad ratio) ModeLine "720x576" 27 720 732 796 864 576 581 586 625 -hsync -vsync # Monitor supported CEA modeline (50.0 Hz vsync, 37.5 kHz hsync, ratio 16/9, 52 dpi) ModeLine "1280x720" 74.25 1280 1720 1760 1980 720 725 730 750 +hsync +vsync # Monitor supported CEA modeline (50.0 Hz vsync, 28.1 kHz hsync, interlaced, ratio 16/9, 78 dpi) ModeLine "1920x1080" 74.25 1920 2448 2492 2640 1080 1084 1094 1125 +hsync +vsync Interlace # Monitor supported CEA modeline (24.0 Hz vsync, 27.0 kHz hsync, ratio 16/9, 78 dpi) ModeLine "1920x1080" 74.25 1920 2558 2602 2750 1080 1084 1089 1125 +hsync +vsync # Monitor supported modeline (60.0 Hz vsync, 110.8 kHz hsync, ratio 16/10, 117x134 dpi) (bad ratio) ModeLine "2880x1800" 336.72 2880 2928 2960 3040 1800 1803 1809 1846 -hsync +vsync # Monitor supported modeline (30.0 Hz vsync, 67.5 kHz hsync, ratio 16/9, 157 dpi) ModeLine "3840x2160" 297 3840 3888 3920 4400 2160 2164 2170 2250 -hsync +vsync # Monitor supported modeline (60.0 Hz vsync, 135.0 kHz hsync, ratio 16/9, 157 dpi) ModeLine "3840x2160" 594 3840 4016 4104 4400 2160 2162 2172 2250 +hsync +vsync

I specifically needed a dummy plug such as this one that offers 1920x1200. The first two brands I ordered off Amazon advertised the resolution I needed, but were not actually programmed to provide that resolution. This one here is the first of 3 different brands I ordered from Amazon that actually has the 1920x1200 I needed.10/10 A+++ product. Thanks!

I'm using it with Nomachine to get a fully working remote desktop for free apart for hardware cost.If you do this with the most recent Nomachine remember to turn of Wayland on the RPi (nothing to do with this adapter, just how the software works).