In my case i have the same laptop: HP 6735s, and i have the same issue. i try totem and vlc, when i see a dvd at some random point all the system freezes.
All graphical enviroment hangs up. i try to restart gdm (ctrl+alt+backspace) but no response. Also i try to open other tty console. i put mi login and password but stay there without show any prompt. No other way to diagnostics, only i i can do is a forced-restart. i will try to reproduce this error and post the dmesg and others logs. -- media player freeze up system. https://bugs.launchpad.net/bugs/412633 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs