Run plasma from within gamescope

PlasmaNested.sh

#!/bin/sh

# Remove the performance overlay, it meddles with some tasks
unset LD_PRELOAD

## Shadow kwin_wayland_wrapper so that we can pass args to kwin wrapper 
## whilst being launched by plasma-session
mkdir $XDG_RUNTIME_DIR/nested_plasma -p
cat <<EOF > $XDG_RUNTIME_DIR/nested_plasma/kwin_wayland_wrapper
#!/bin/sh
/usr/bin/kwin_wayland_wrapper --width 1280 --height 800 --no-lockscreen \$@
EOF
chmod a+x $XDG_RUNTIME_DIR/nested_plasma/kwin_wayland_wrapper
export PATH=$XDG_RUNTIME_DIR/nested_plasma:$PATH

dbus-run-session startplasma-wayland

rm $XDG_RUNTIME_DIR/nested_plasma/kwin_wayland_wrapper

Thank you for the script. It seems to work at first glance. However, I was hoping this trick would allow VRR in desktop mode when docked with the official dock. But the adaptive sync option is still missing in the KDE Display Settings, just like with x11. Also, with this trick, the display name is now just shown as X11-0 instead of LG Electronics LG FULL HD.

Is there maybe another trick to specifically enable VRR in Plasma Wayland when docked? Maybe the information that VRR is supported, and which refresh rates are supported is somehow lost with this script?

(The game mode performance menu overlay correctly shows VRR as active, and the slider there shows all refresh rates up to 75 Hz.)

Any idea why notifications don't have a proper background when running in this mode. This is the case for action set change notifications.

I found a reddit post that solves my copy paste issue:
https://www.reddit.com/r/SteamDeck/comments/zqgx9g/desktop_mode_within_gaming_mode_updated_for_new/

Might be of interest to any of you.

I've changed it up a little to add the dynamic resolution functionality from my previous comment:

#!/bin/sh

# Remove the performance overlay, it meddles with some tasks
unset LD_PRELOAD

# Get screen resolution
X=$(xdpyinfo -display :0 | awk '/dimensions/{print $2}' | cut -d 'x' -f1)
Y=$(xdpyinfo -display :0 | awk '/dimensions/{print $2}' | cut -d 'x' -f2)

rm -rf /tmp/desktop-mode
mkdir -p /tmp/desktop-mode
cat > /tmp/desktop-mode/kwin_wayland_wrapper << EOF
#!/bin/sh
$(which kwin_wayland_wrapper) --width $X --height $Y --no-lockscreen --x11-display $DISPLAY \$@
EOF
chmod +x /tmp/desktop-mode/kwin_wayland_wrapper

kwriteconfig5 --file startkderc --group General --key systemdBoot false
PATH=/tmp/desktop-mode:$PATH startplasma-wayland
kwriteconfig5 --file startkderc --group General --key systemdBoot --delete

This stopped working since plasma6 is there any workarounds ?

@ripplingsnake https://gist.github.com/lucsoft/40c929537e083f1984d4dedd393eae80#file-plasmanested-sh Works on my side

good useable 2024-11-16 22:29:26