these kind of issues are usually driver bugs. please check latest kernel packages from http://kernel.ubuntu.com/~kernel-ppa/mainline/
If the problem persists, attach outpuf of lspci -vv lsusb and your complete syslog after reproducing.
these kind of issues are usually driver bugs. please check latest kernel packages from http:// kernel. ubuntu. com/~kernel- ppa/mainline/
If the problem persists, attach outpuf of lspci -vv lsusb and your complete syslog after reproducing.