Public bug reported:
Raspberry Pi HDMI output has thick black borders.
This appears to be due to some DRM property defaults coming from the
kernel. You can fix them in Xorg sessions with:
xrandr --output HDMI-1 --set "top margin" 0
xrandr --output HDMI-1 --set "bottom margin" 0
xrandr --output HDMI-1 --set "left margin" 0
xrandr --output HDMI-1 --set "right margin" 0
To work around the issue in Wayland sessions you will need to log into
Xorg first, run the above commands, then log out and into Wayland.
** Affects: linux-raspi (Ubuntu)
Importance: Undecided
Status: New
** Tags: raspi raspi-gfx raspi4
** Tags added: raspi4
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https://bugs.launchpad.net/bugs/1896180
Title:
Raspberry Pi HDMI output has thick black borders
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