A British man who fatally stabbed his partner after an argument about her heavy use of a Playstation has been sentenced to at least 14 years in prison.

Malcolm Palmer admitted killing Carol Cannom in front of the couple's 10-year-old son in November.

Judge Michael Heath in Lincoln Crown Court on Wednesday gave Palmer a life sentence, with a minimum term of 14 years.

Cannom suffered at least 30 knife wounds, and the son was also injured.

The judge noted that Cannom would stay awake as late as 5 a.m. playing games, while Palmer was exiled to an unheated conservatory.

Palmer's daughter, Claire Scott, said outside court that the couple had too much time on their hands and that the Playstation was just a bit of escapism.