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Screen size
Posted: Sun Oct 26, 2025 5:34 pm
by jam75
Hi,
with a PI400 I am using as monitor a TV,
but under PI OS I am not able to find the correct screen size,
and therefore I do not 'see' correctly the displayed info on the sides.
Thanks for your help
Re: Screen size
Posted: Sun Oct 26, 2025 6:11 pm
by KeithMck
Re: Screen size
Posted: Sun Oct 26, 2025 7:45 pm
by terribleted
you can use wlr-randr to see what resolutions the TV supports.
after bootup, open a terminal and invoke
wlr-randr
outputs suppported resolutions....
might help.
Re: Screen size
Posted: Sun Oct 26, 2025 9:20 pm
by jam75
Thanks a lot.
I will try to-morrow.
Good night
Re: Screen size
Posted: Sun Oct 26, 2025 9:29 pm
by terribleted
you can set the resolution manually:
in /boot/cmdline.txt (add to the front/end of the line, NOT a new line)
-- IMPORTANT NOTE: for Bookworm and Trixie, the file is at /boot/firmware/cmdline.txt !!
video=HDMI-A-1:1024x768@60D
(or whatever resolution you want)
above is 1024 x 768 at 60Hz.