I have 2 raspberry pis, suddenly yesterday one of them started using the full screen on reboot, now the relations between height and width are wrong. I copied the /boot/config.txt file from the working pi to the other, still same problem! What is going on?!? Please Help!
Related
I have a camera plugged into a USB port on my raspberry pi. It is capable of taking about 3-5 pictures before I get this message:
Timed out waiting for frame!
No frames captured.
I have the resolution set at 320x240. I have gotten the camera to work again by turning of the pi and plugging the camera back in. Inevitably though, I get the timing out error again.
How can I fix this??
I am trying to view a video via CVLC on a raspberry pi zero by using this command...
cvlc --no-osd --video-filter=adjust --brightness=2.0 /mnt/flash-drive/16-16-05.mp4
The video plays without any issues when i leave out the "--video-filter=adjust --brightness=2.0" section.
But when i add that section VLC does not show the video.
I looked around on the web on how to adjust image settings like brightness and contrast from command line and that seems to be the way , i just don't understand why it doesn't work on the raspberry pi zero.
Any idea why that doesn't work ?
EDIT :
This function is not supported on the raspberry pi because of its hardware acceleration.
This function is not supported on the raspberry pi because of its hardware acceleration.
VLC BUG REPORT WEBSITE
As demoed here Can't succeed in making transparent window in Electron (javascript), I manage to run the hello world application on a debian buster with background transparency.
However, when I try this demo on a raspberry pi 4 (raspbian desktop), it doesn't work out of the box. I read here https://ourcodeworld.com/articles/read/315/how-to-create-a-transparent-window-with-electron-framework that it could be caused by some driver bugs.
Can someone help me understand the issue with more depth ?
The need in my project is to display an HD video in the background and a few buttons in the foreground. Chromium-browser does not benefit as much from the hardware acceleration as omxplayer does (and drops frames), so I'm trying not to embed the video in the browser. Instead, I plan to have the smooth omxplayer run in the background and display an electron app with transparency.
(Pi 4B)
Doing some looking into openbox, the docs here say that you can use:
xcompmgr -c -t-5 -l-5 -r4.2 -o.55 &
I tested it, and it works with the parameters specified here. You can set the xcompmgr command to run in an autostart file when X initializes.
EDIT: In my testing, the latest electron build where transparency works correctly is electron#9.2.1.
I have a smart home (node-red) with a Raspberry Pi and a official 7" touchscreen as dashboard.
I now want to turn off the backlight after a certain time and I know how to do that. I also want to turn it back on if I touch the screen at any place.
I have no idea how to do that, as there is no node-red node for touch input or something like that.
Anyone did this before?
I have rasp 3 and a new picamera.
When i was checking the video, I get the green tint. I tried things like reconnecting the hardware well but no got change.
please help
Raspberry pi3 is compatible with picamera V2 . The tint didnt show up when the V2 cam was used.