Caps lock flashing implies a kernel panic, it is worth trying the suspend from VT-1, hit ctrl-alt-f1 and see if you can see the panic messages there. You may need to login on the console and make the font smaller with the command below:
setfont /usr/share/consolefonts/Uni1-VGA8.psf.gz ** Summary changed: - [LENOVO 2764CTO] hibernate/resume failure + [LENOVO ThinkPad T400: 2764CTO] hibernate/resume failure ** Changed in: linux (Ubuntu) Status: New => Incomplete -- [LENOVO ThinkPad T400: 2764CTO] hibernate/resume failure https://bugs.launchpad.net/bugs/336431 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