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Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex

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'''Documentation notice:''' This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

== Summary ==
The Waveshare 11.9-inch display is a universal HDMI screen with an IPS panel, a 320×1480 hardware resolution, and a 5-point capacitive touch panel behind toughened glass rated up to 6H. It can be used as a monitor on PCs running Windows 7 through 11 or as a display for Raspberry Pi systems (Raspberry Pi OS, Ubuntu, Kali, Retropie). Connection uses HDMI for video and USB for touch input; audio can additionally be output via a 3.5 mm jack.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL19454 WSAL19454 – 11.9inch Capacitive Touch Screen LCD, 320×1480, HDMI, IPS, Toughened Glass Cover]

== Technical overview ==
* IPS panel with fixed hardware resolution of 320 × 1480 pixels
* 5-point capacitive touch panel behind toughened glass cover rated up to 6H
* PC use: connect the TOUCH port to USB and HDMI to the PC; with multiple monitors, touch defaults to the main display
* Raspberry Pi use: flash the system image, then append max_framebuffer_height=1480, hdmi_group=2, hdmi_mode=87 and hdmi_timings=320 0 80 16 32 1480 0 16 4 12 0 0 0 60 0 42000000 3 to config.txt
* EDID timing parameters: pixel clock 48.00 MHz, H/V addressable 320/1480, blanking 200/76, front porch 100/10, sync width 10/60, image size 320×1480
* Screen orientation: Bookworm allows synchronized screen and touch rotation via “Screen Configuration”; older versions require separate settings
* Rotation without desktop environment: set parameters such as video=HDMI-A-1:400x1280M@60,rotate=90 in cmdline.txt (path varies by system: /boot/cmdline.txt or /boot/firmware/cmdline.txt)
* Routing touch to a secondary display: xinput map-to-output <touch-ID> <HDMI-ID>, e.g. xinput map-to-output 7 HDMI-1
* Long-press right-click gesture: run evdev-rce with LONG_CLICK_INTERVAL=1000 and LONG_CLICK_FUZZ=200, and activate it persistently via an autostart entry
* Audio output available via the 3.5 mm HP jack; a flashing green light on the back indicates power-on state without an HDMI signal

'''Commands and examples – verify before use:'''
<syntaxhighlight lang="text">
max_framebuffer_height=1480
hdmi_group=2
hdmi_mode=87
hdmi_timings=320 0 80 16 32 1480 0 16 4 12 0 0 0 60 0 42000000 3
video=HDMI-A-1:400x1280M@60,rotate=90
xrandr
xinput
xinput map-to-output 7 HDMI-1
sudo nano /etc/X11/xinit/xsession LXDE-pi-autostart
sudo nano /boot/firmware/cmdline.txt
sudo nano /boot/cmdline.txt
sudo reboot
sudo usermod -G 'input' -a pi
echo 'uinput' | sudo tee -a /etc/modules
KERNEL=="uinput", MODE="0660", GROUP="input"
sudo udevadm control --reload-rules
sudo udevadm trigger
evdev-rce
LONG_CLICK_INTERVAL=1000 LONG_CLICK_FUZZ=200 /usr/local/bin/evdev-rce
[Desktop Entry]
Version=1.0
Type=Application
Name=evdev-rce
GenericName=Enable long-press-to-right-click gesture
Exec=env LONG_CLICK_INTERVAL=1000 LONG_CLICK_FUZZ=200 /usr/local/bin/evdev-rce
Terminal=true
StartupNotify=false
</syntaxhighlight>

== Notes and version constraints ==
* The exact path structure of cmdline.txt varies between /boot/cmdline.txt and /boot/firmware/cmdline.txt depending on the OS version; verify the actual layout before editing.
* With multiple connected displays, touch input only affects the main screen by default; explicit assignment requires running xinput map-to-output after every boot unless permanently anchored in an autostart file.
* HDMI rotation settings apply jointly with other interfaces (DPI, DSI) and cannot be configured independently.
* The behavior of the evdev-rce right-click trick depends on the system; whether it works identically across all supported distributions must be tested per environment.
* Sleep-mode behavior (about 10 minutes of inactivity) refers to the official Raspberry Pi OS; other distributions may differ.
* The source text contains placeholders and incomplete sections in several steps; individual instructions must be manually verified before implementation.

== Source and revision record ==
* [https://www.waveshare.com/wiki/11.9inch_HDMI_LCD 11.9inch HDMI LCD - Waveshare Wiki]
* Source revision: 105266
* Captured: 2026-09-01T04:18:08+00:00
* SHA-256: <code>6da164bbd492a4a07ebd7afb2a013970473a1d81c9ad31fca359e1c6b7055903</code>

WSAL19454 – 11.9inch HDMI LCD/en - Versionsgeschichte

JWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex