I'm having trouble playing videos in ubuntu. After upgrading from 13.10 to 14.04 Totem crashes if I move the slider. I am playing a mkv file. It starts playing alright, but if I move the slider totem crashes. It used to work like a champ in 13.10 so I know the problem is not in the file.
I switched to VLC and it doesn't seem to have the same problem. Any ideas? Is this a known issue?
sudo apt-get install --reinstall totem
. Also try deleting totem config folderrm -r -f ~/.config/totem