I have seen another user further back in this forum run the following:
bfgminer -S antminer:all -S erupter:all -S all --set-device antminer:clock=x0981 --icarus-options 115200:2:2 --icarus-timing 2.5=90 --weighed-stats
I have been running my U1's with just the first part of that command line and they are working but I was wondering if there was any way to tweak them so their production would be more stable. I'm curious about the last switches in those command lines and what they do. specifically the Icarus options and Icarus timing switches. I hadn't seen those before. I see in the config file you are running a queue of 22 but perhaps you are running many more units and or have more power than I am running. I know I don't want to have the miners waiting for work but is there any issue with setting the queue too high? ie stale work etc?
You can absolutely run without the Icarus settings, I am using them because it makes the BEs run absolutely rock stable in my configuration. I have tried without and the stats are correct, but the BEs run at fluctuating speeds and quit working after just a few hours. When I run with the Icarus settings, I can run for up to 6 days straight before I have to restart BFGminer.
Once I start relegating the BEs to mining some of the other SHA-256 coin, I will be dropping the Icarus settings as well.
As for the Queue of 22, I didn't set the setting and left it running for 3-4 hours, and then checked to see what the queue had grown to, and it was at 22, so I set it specifically to 22, and I sometimes see it go to 24 or 26.