I have used Direwolf on Pis and never seen this message with GPIO, or VOX.
Since this was a slightly different installation of my client, I looked through my APRS client to see if there were any settings (TXTAIL) that it changes to cause this.? The client does not change any settings.
I glanced through the file around line 910 and worked in both directions.
?? Line 756 turns PTT ON
?? Line 860 seems to do TXTAIL timing, but I still don't see what it is "looking at" to determine PTT is still active - in this case there is nothing it CAN check.
?? And line 931 disable PTT
The computer is a quad core AMD (4 thread) running 3.5 GHz.? Direwolf (2 audio channels) and APRSIS32 running under WINE was pretty much the only thing running.? That's much more than any Pi - even with the extra overhead of a desktop.
