When get home, I give you output from usbmon. CONFIG_USB_DEBUG is enabled (you can see in bugzilla dmesg's). Keyboard is new and cable is OK. 2012/2/24 Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>: > On Fri, 24 Feb 2012, okias wrote: > >> Hello, >> >> yes this problem is still present and that keyboard work only with >> BIOS, in linux system keep connecting and disconnecting. >> >> Dmesg are located at linux bugzilla. Running lastest kernel, tested on >> 3 computers with different linux kernels. >> >> If there is any patch that I could test, I will do. > > It looks like something is wrong with the hardware, either in the > keyboard or in the connecting cable. > > Can you post a usbmon trace showing what happens when the keyboard is > plugged in? Instructions are in the kernel source file > Documentation/usb/usbmon.txt. According to your log, you'll need to > trace bus 4. > > Alan Stern > -- Jabber/XMPP: okias@xxxxxxxxxxx Skype: okiasxxx ICQ: 283-633-094 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html