What video card does it have (give us the output of lspci -v if you don't know)?
Are you using compiz or beryl? -- Dell Inspiron 8200 freezes after ~5 mins of work https://bugs.launchpad.net/bugs/107633 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs