Gridseed Problems (Dualminer 5 chip)

[dumasor]

Hi all,

So this is my first post here- I've looked around the internet for answers but I can't solve this problem for the life of me, and its been 15 frustrating hours.

I have 10 gridseed dualminers that I'm attempting to run through an old Acer laptop. I have attempted to get them to work on four different platforms- most recently the cgminer version 3.7.2 (modified to work with scrypt and gridseed). I've changed the USB ports w/ zadig, and all of my gridseeds seem to be recognized by the comp as Virtual COM ports.

At this point my batch file looks like this:

cgminer.exe --scrypt -o stratum+tcp://gridseed.give-me-coins.com:4256 -u etc.1 -p x --gridseed-options=baud=115200,freq=750,chips=5,modules=1,usefifo=0 --hotplug=2

and every time I run cgminer, I get this:

[2015-08-31 03:45:00] Started cgminer 3.7.2
[2015-08-31 03:45:01] No devices detected!
[2015-08-31 03:45:01] Waiting for USB hotplug devices or press q to quit
[2015-08-31 03:45:01] Need to specify at least one pool server.
Input server details.
URL:

If I input the url, username, and pass again, cgminer just shuts down. I've tried everything I can think of to try and change this but I can't figure it out-- any advice that you could offer would be of the greatest help...

[Brewzr]

From what I have read most folks have solved that problem by starting cgminer first and then plugging in your units. Make sure your usb hub is powered too or you won't get any of the gridseeds to connect.  In my experience a discount 10-port hub won't support 10 units but only 7.  If that doesn't work you can try BFGminer 4.0  . I've been using it for about 4 months and am now running 40 gridseeds and its been working quite well.
Oh, and , use 850mhz as the startup frequency.  It is the most optimal of all to start with.  BFGminer 4.5 allows for individual tuning if you want to go that route.