Connection with ubuntu

I was trying to connect my k8200 on my ubuntu 14,04 but no comunication .
the mod explaned by filou didend work he stops by the line wget -O serial.patc etc
can some body help me.
Or can i find detailed explanation for modifying the firmware to set the baudrate to standaard

Thanks

I have tested this wiht the same result
He detectct the printer see next
leo@leo-HP-Pavilion-17:~$ lsusb
Bus 002 Device 002: ID 0bda:571c Realtek Semiconductor Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 002: ID 046d:c03e Logitech, Inc. Premium Optical Wheel Mouse (M-BT58)
Bus 005 Device 003: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
leo@leo-HP-Pavilion-17:~$
Mono is ont the latest version see next
leo@leo-HP-Pavilion-17:~$ sudo apt-get install mono-runtime
[sudo] password for leo:
Pakketlijsten worden ingelezen… Klaar
Boom van vereisten wordt opgebouwd
De status informatie wordt gelezen… Klaar
mono-runtime is al de nieuwste versie.
0 pakketten opgewaardeerd, 0 pakketten nieuw geïnstalleerd, 0 te verwijderen en 503 niet opgewaardeerd.
When i change setserial there is no response.
some new ideas pls

I modified the firmware to standard baudrate of 115200 and now it works on all my ubuntu computers without modifieng them