As referenced in this post reply, if you use the flatpak Signal desktop app from elogast, you can correct the blurry screen by doing the following:
Signal will be blurry on phosh (pinephone, Librem 5) becacuse of X11. To fix, run with wayland using these arguments: --use-gl=egl --enable-features=UseOzonePlatform --ozone-platform=wayland. Signal must be opened at least once in X11/Xwayland first (just by clicking the launcher) first.
–> To add the above to the launcher shortcut: copy /var/lib/flatpak/app/org.signal.Signal/current/active/files/share/applications/org.signal.Signal.desktop to ~/.local/share/applications/ and change the Exec line to this: Exec=flatpak run org.signal.Signal --use-gl=egl --enable-features=UseOzonePlatform --ozone-platform=wayland
I’ve tried the same thing with my blurry Joplin flatpak desktop app:
flatpak run net.cozic.joplin_desktop --use-gl=egl --enable-features=UseOzonePlatform --ozone-platform=wayland
but I get the following error message:
LaunchProcess: failed to execvp:
xdg-settings
Sentry: Initialized with autoUploadCrashDumps: false
[2:0913/144124.758737:ERROR:wayland_connection.cc(196)] Failed to connect to Wayland display: No such file or directory (2)
[2:0913/144124.759573:ERROR:ozone_platform_wayland.cc(264)] Failed to initialize Wayland platform
[2:0913/144124.759624:ERROR:env.cc(257)] The platform failed to initialize. Exiting.
Any thoughts on if/how I can correct these commands to work for Joplin as well?
Many thanks.