I face the same problem on an IBM T30 laptop. Boot up -> USB works (ie. mouse) -> close lid -> suspend -> open lid -> mouse doesn't work (optical mouse -> led not glowing). MODULES variable is empty in my case in acpi-support.
This is from /var/log/messages: Jun 4 22:10:28 kolibri kernel: [427518.408000] usb usb1: root hub lost power or was reset Jun 4 22:10:28 kolibri kernel: [427518.408000] PCI: Enabling device 0000:00:1d.1 (0000 -> 0001) Jun 4 22:10:28 kolibri kernel: [427518.408000] ACPI: PCI Interrupt 0000:00:1d.1[B] -> Link [LNKD] -> GSI 11 (level, low) -> IRQ 11 Jun 4 22:10:28 kolibri kernel: [427518.408000] usb usb2: root hub lost power or was reset Jun 4 22:10:28 kolibri kernel: [427518.408000] PCI: Enabling device 0000:00:1d.2 (0000 -> 0001) Jun 4 22:10:28 kolibri kernel: [427518.408000] ACPI: PCI Interrupt 0000:00:1d.2[C] -> Link [LNKC] -> GSI 11 (level, low) -> IRQ 11 Jun 4 22:10:28 kolibri kernel: [427518.408000] usb usb3: root hub lost power or was reset Jun 4 22:10:28 kolibri kernel: [427518.408000] ACPI: PCI Interrupt 0000:00:1f.1[A] -> Link [LNKC] -> GSI 11 (level, low) -> IRQ 11 uname: Linux kolibri 2.6.20-15-generic #2 SMP Sun Apr 15 07:36:31 UTC 2007 i686 GNU/Linux lspci: 00:1d.0 USB Controller: Intel Corporation 82801CA/CAM USB (Hub #1) (rev 02) 00:1d.1 USB Controller: Intel Corporation 82801CA/CAM USB (Hub #2) (rev 02) 00:1d.2 USB Controller: Intel Corporation 82801CA/CAM USB (Hub #3) (rev 02) ** Changed in: linux-source-2.6.20 (Ubuntu) Status: Rejected => Confirmed -- USB does not work after suspend to RAM on IBM T42 https://bugs.launchpad.net/bugs/95144 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