Am 28.02.22 um 19:58 schrieb Wolfgang Engelmann via lyx-users:

Am 28.02.22 um 19:17 schrieb Wolfgang Engelmann:

These two lines are missing in my notebook Debian.
There must be something fundamentally wrong.

Maybe the display manager. (Is it unity?) If yes, look for the panel on top of the screen.
I had this problem with unity at least.


my is on the notebook sddm, on the PC Mint lightdm

I checked the former, it was up to date (removed stuff not used anymore)

There was an additional white control line on top of the desktop which I removed.

Starting from a terminal
$ lyx24x
qt.qpa.xcb: QXcbConnection: XCB error: 5 (BadAtom), sequence: 597, resource id: 0, major code: 20 (GetProperty), minor code: 0
Warning: 609: Format not supported.
Warning: Quitting.
Error: Dokumentformat-Fehler

but shows lyx. And, heureka, it has the missing top!

loading examples/de/welcome.lyx works alright

all other lyx files are working.
Only those which I created/worked on during the time of the disaster are giving this error:

loading another file gives
/tmp/lyx_tmpdir.PrXtIVAGvvMT/Buffer_convertLyXFormatetZcbC.lyx ist kein lesbares LyX-Dokument.
Must inquire why. Perhaps remove the tmpdir?

Glad that lyx is now showing its normal appearance. Thanks for help and patience, especially Kornel and Jürgen


off topic: For those (German understanding) a nice mirror of my understanding of IT stuff:

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