I'm using Ubuntu 12.04 which is updated day by day (proposed actualisations enabled) and I'm experiencing this bug. In my case it affects two games:
StarCraft II Demo Portal 2
Running echo 0|sudo tee /proc/sys/kernel/yama/ptrace_scope before starting those resloves this issue.
I'm using Ubuntu 12.04 which is updated day by day (proposed actualisations enabled) and I'm experiencing this bug. In my case it affects two games:
StarCraft II Demo
Portal 2
Running echo 0|sudo tee /proc/sys/ kernel/ yama/ptrace_ scope before starting those resloves this issue.