Some people above have mentioned TeamViewer 8. This is probably the cause in my case.
I installed TeamViewer a couple of days and have had a number of instances of this crash. This normally happens either when nothing else is happening (such as shortly after booting the machine and logging in) or when starting TeamViewer.
I have also experienced the system hanging on shutdown on three occasions.
I am running Ubuntu 12.04 LTS (upgraded from my original installation of 11.10). Prior to installing TeamViewer Ubuntu had never crashed.
Some people above have mentioned TeamViewer 8. This is probably the cause in my case.
I installed TeamViewer a couple of days and have had a number of instances of this crash. This normally happens either when nothing else is happening (such as shortly after booting the machine and logging in) or when starting TeamViewer.
I have also experienced the system hanging on shutdown on three occasions.
I am running Ubuntu 12.04 LTS (upgraded from my original installation of 11.10). Prior to installing TeamViewer Ubuntu had never crashed.