Can you test now removing the toshiba_acpi module instead? It's a shot in the dark and I doubt it may change anything, but as it registers a backlight device too, worth a quick check it there isn't any conflict (anyway it shouldn't cause problems from what I saw).
Also with toshiba_acpi loaded, I think you have two backlight devices inside /sys/class/backlight/, one acpi_video0 and another toshiba. As another test when the system resume from first suspend, try writing brightness value inside /sys/class/backlight/toshiba and see if it changes anything. ** Changed in: linux (Ubuntu) Status: Triaged => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/719620 Title: Toshiba Tecra A11 - System doesn't resume after suspend -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs