I did it and this came up:
raspberry@raspberrypi:~ $ export DISPLAY=172.20.10.2:y.y
raspberry@raspberrypi:~ $ libcamera-hello -t 0 --qt-preview
[0:25:10.441538145] [1970] INFO Camera camera_manager.cpp:284 libcamera v0.2.0+46-075b54d5
[0:25:10.479156220] [1973] WARN RPiSdn sdn.cpp:39 Using legacy SDN tuning - please consider moving SDN inside rpi.denoise
[0:25:10.481819926] [1973] INFO RPI vc4.cpp:447 Registered camera /base/soc/i2c0mux/i2c@1/imx708@1a to Unicam device /dev/media2 and ISP device /dev/media3
[0:25:10.481900572] [1973] INFO RPI pipeline_base.cpp:1144 Using configuration file '/usr/share/libcamera/pipeline/rpi/vc4/rpi_apps.yaml'
qt.qpa.xcb: could not connect to display 172.20.10.2:y.y
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, xcb.
Aborted
raspberry@raspberrypi:~ $
raspberry@raspberrypi:~ $ export DISPLAY=172.20.10.2:y.y
raspberry@raspberrypi:~ $ libcamera-hello -t 0 --qt-preview
[0:25:10.441538145] [1970] INFO Camera camera_manager.cpp:284 libcamera v0.2.0+46-075b54d5
[0:25:10.479156220] [1973] WARN RPiSdn sdn.cpp:39 Using legacy SDN tuning - please consider moving SDN inside rpi.denoise
[0:25:10.481819926] [1973] INFO RPI vc4.cpp:447 Registered camera /base/soc/i2c0mux/i2c@1/imx708@1a to Unicam device /dev/media2 and ISP device /dev/media3
[0:25:10.481900572] [1973] INFO RPI pipeline_base.cpp:1144 Using configuration file '/usr/share/libcamera/pipeline/rpi/vc4/rpi_apps.yaml'
qt.qpa.xcb: could not connect to display 172.20.10.2:y.y
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, xcb.
Aborted
raspberry@raspberrypi:~ $
Statistics: Posted by Veronika_37 — Thu Apr 11, 2024 1:47 pm