Qt V4L2 test Utility can not work at OrangePi 5 plus

Joshua-Riek / ubuntu-rockchip

Ubuntu for Rockchip RK35XX Devices

https://joshua-riek.github.io/ubuntu-rockchip-download/

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Qt V4L2 test Utility can not work at OrangePi 5 plus #307

Open rctzxy opened 1 year ago

rctzxy commented 1 year ago

version:1.22 When I open qv4l2 to test the HDMI input interface, its display is as shown in the following picture:

The bottom right corner of the qv4l2 interface successfully displays the captured Frame and Fps. I tested using the official image, and it worked fine. I also noticed that the Graphics option in the About section displays "Unknown Graphics Controller / Mail-G610(Panfrost)". Will this have any impact on usage?

Joshua-Riek commented 1 year ago

Try using x11 desktop manager?

rctzxy commented 1 year ago

When I use Xorg, qv4l2 cannot start. Here is the terminal output:

rctzxy commented 9 months ago

Try using x11 desktop manager?

I attempted to temporarily add an environment variable in the terminal with the command "export QT_QPA_PLATFORM="xcb"", and then started qv4l2. It runs well in both Wayland and X11 environments.

I added QT_QPA_PLATFORM="xcb" in /etc/environment, but after restarting, when I checked with echo, I found that it reverted back to Wayland.