Black bar on top and left of chromium browser

Product support balenaOS
1

Hello,

I am experiencing an issue with a small margin appearing on the top and left of my 1920x1080 touch screen, I am using a Pi4 with the balenaDash repo, It is causing a small portion of my screen to not be visible in the bottom and right, please see attached:

IMG_2287
IMG_22873024×3024 300 KB
IMG_2288
IMG_22883024×3024 556 KB

I have tried a number of combinations from https://www.raspberrypi.org/documentation/configuration/config-txt/video.md
I tried

  • Disabling/enabling overscan on the device and on my monitor
  • Setting custom overscan to and left properties
  • Changing the screen size
  • Setting different framebuffer_width, framebuffer_height, max_framebuffer_height & max_framebuffer_width properties
  • Setting a custom WINDOW_SIZE variable

It seems as though the window is the correct size, there is just a margin that needs to be removed?
Can you help in any way?

The splash screen has no border

6

Hey Patrick,

We can try setting the window position of chrome to set it we’ll need to add the flag --window-position=0,0.
We can override the current flags by setting FLAGS variable to $KIOSK --disable-dev-shm-usage --ignore-gpu-blacklist --enable-gpu-rasterization --force-gpu-rasterization --autoplay-policy=no-user-gesture-required --user-data-dir=/usr/src/app/settings --enable-features=WebRTC-H264WithOpenH264FFmpeg --window-position=0,0

Let us know if this works for you.

Cheers,
Amit

1 Like
8

Thanks @iamsolankiamit!!!

I cant believe I spent a whole day on this :see_no_evil: