FabGL

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I'm playing a while with the UTERM2-S that uses the FABGL library. I discovered a very strange issue: My Scrumpel runs at 115200 baud. When doing a hexdump in my monitor after a little while the terminal gets a buffer overrun and the dump is garbled. But the strange thing is after opening the config menu with F12 and closing it with esc the terminal shows the dump as it must be without any garbled characters. When running in xon/xoff the uterm stops after a while, (expected when buffer is full) but sends no xon to Scrumpel. (I can continue the hexdump by sending the XON command via the keyboard.) Does the config option some extra initializing, what is not completely done after reset or power up? After resetting or power-down -up the problem re-appears, opening the config window and closing solves the problem.