I have Samsung NP360E5A-A07PL laptop with ELAN Smart-Pad (ETPS/2 Elantech Touchpad, according to gpointing-device-settings), and a Logitech M195 wireless mouse (with an USB receiver). On Linux (LUbuntu 12.04 LTS) the wireless mouse stops working from time to time (quite frequently, perhaps every few minutes) for maybe one second.
Disabling touchpad (via gpointing-device-setting) didn't help. Switching to wired USB mouse didn't help either, and it even made situation worse; with wired mouse to make it start working again after freeze I had to re-plug the USB, while with wireless mouse I only have to move it.
The very same hardware setup works without any problems on MS Windows 7 (dual-boot).
Below there is result of running
jnareb@llaptok:~$ xinput ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ Logitech USB Receiver id=10 [slave pointer (2)] ⎜ ↳ Logitech USB Receiver id=11 [slave pointer (2)] ⎜ ↳ ETPS/2 Elantech Touchpad id=13 [slave pointer (2)] ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)] ↳ Power Button id=6 [slave keyboard (3)] ↳ Video Bus id=7 [slave keyboard (3)] ↳ Power Button id=8 [slave keyboard (3)] ↳ WebCam SC-0311139N id=9 [slave keyboard (3)] ↳ AT Translated Set 2 keyboard id=12 [slave keyboard (3)]
It looks like the problem occur only after resuming from sleep, and beside mouse freezing I get intermittent short beeps, like on keyboard error, for no discernible reason. It might be that it denotes event that causes mouse freezing.
I don't know where to start looking...