Hi Guys,

This is really strange I have a serial mouse connected to my COM port (The manual shows that port as a COM A) belong to my MSI KT3 Ultra (more specific MS-6380E v1.X) and it is not being detected. Just in Case I borrow a PS2 mouse and this is pretty fine detected. I use "cat" to get any output from these port, and the only one that I got answer is the /dev/psaux. /dev/ttyS0 and /dev/ttyS1 didn't show anything.
I searched for answers in google and everybody had to buy a PS2 one. Do you have fresh information?
Really guys, I test every suggestion that I could find

Salu2!

Do you have any other serial devices such as modems etc? There could be an IRQ conflict.

Nop, just the printer on LPT and the KeyBoard in other PS2.

Take a look at this howto for checking your settings.
http://www.tldp.org/HOWTO/Serial-HOWTO-9.html

What do you get when you run:
cat /proc/tty/driver/serial

Does the port show up?

Hi,

That is showing just these two:
0: uart:16550A port:3F8 irq:4 baud:9600 tx:0 rx:0
1: uart:16550A port:2F8 irq:3 baud:9600 tx:0 rx:0

I test both but it didnt work

Salu2!