This is a known major bug and has already been reported.
https://mirror.git.trinitydesktop.org/gitea/TDE/tdebase/issues/163
Unfortunately we still don't know the cause. Apparently the display configuration
module somehow messes up while trying to set the settings with XRandR.
Meanwhile you can use another tool like LXrandr or the CLI. I have also written a small
TDE app for my own needs with three simple options, disable HDMI, mirror and extend (side
of screen selectable). It is a wrapper around the xrandr tool so it shouldn't mess up
anything:
https://github.com/blu256/tde-easy-projector
--
Philippe M.
-------- Αρχικό Μήνυμα --------
Την 6/6/24 10:51 μ.μ., Thierry de Coulon via tde-users ο/η
<users(a)trinitydesktop.org> έγραψε:
I use a Lenovo X390, MX-Linux 21.3, with one user
using xfce (the "original"
DE) and the other using TDE.
When I plug in HDMI (for a beamer, in this case), xfce can easily be set up to
mirror the display.
When I use TDE and connect the Beamer (seen as HDMI-2), TDE automatically
extends my screen to the beamer. xrandr -- output HDMI-2 --same-as eDP1
(where eDP-1 is the internal screen) does mirror the screen, but it remains
extended.
Now if I run "Configure Displays" and select "Enable local Display
control for
this session" (which was not activated), I do get the mirroring I am looking
for. But if I click "Apply" the screen turn to psychedelic colours - seems to
be wating for me to validate the choice, what I can't do and anyway would not
as it's unusable. After a while the sceens returns to my desktop, albeit stil
psychedelic, and I must log out / log in to get my desktop back.
So for the time being that means I have to use xfce when I need the beamer.
Anyone knows what's going on and what I should do to mirror my 1920x1080
screen to the HDMI beamer?
Thierry
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