[BRLTTY] [ht] Spurious Cursor Moving when braille display is attached

[Sebastian Humenda]

Hi

I have a bug related to my HandyTech BRAILLE Star 80 (FDTI device). As soon as
the display is connected, it sends events that somehow get interpreted as "arrow
left". As soon as the display is disconnected, this stops. I have tried to take
a log with BRLTTY, but am unsure about which category to choose and the
configuration syntax. I have put

log-level	brlkeys,csrrtg,brldrv

into /etc/brltty.conf. Is the syntax correct, or would I have to put a log-level
directive per line? The documentation in the file isn't clear about that.

Which other categories would be useful, "serial"?

The log doesn't show anything useful, after the usual start up logging:

2024-06-11 at 17:38:22.466 [brltty] missing braille message acknowledgement
2024-06-11 at 17:38:22.466 [brltty] Write error 5: Eingabe-/Ausgabefehler
2024-06-11 at 17:38:22.865 [brltty] Write error 5: Eingabe-/Ausgabefehler
2024-06-11 at 17:38:22.865 [brltty] Write error 5: Eingabe-/Ausgabefehler
2024-06-11 at 17:38:22.868 [brltty] tcdrain error 5: Eingabe-/Ausgabefehler
2024-06-11 at 17:38:22.868 [brltty] unsupported generic resource identifier: ttyUSB0

I would appreciate help!
Thanks
Sebastian
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