On my Toshiba U400 I have the same (or similar) graphics card as mentioned above (Intel Mobile 4 Series Chipset Integrated Graphics Controller), so the problem may be related to it.
As a temporary workaround I use the command (as proposed somewhere) acpitool -s to suspend the computer, which works fine. Attaching graphics card info: hwinfo --gfxcard 08: PCI 02.0: 0300 VGA compatible controller (VGA) [Created at pci.318] UDI: /org/freedesktop/Hal/devices/pci_8086_2a42 Unique ID: _Znp.f7oS7PcORP3 SysFS ID: /devices/pci0000:00/0000:00:02.0 SysFS BusID: 0000:00:02.0 Hardware Class: graphics card Model: "Intel Mobile 4 Series Chipset Integrated Graphics Controller" Vendor: pci 0x8086 "Intel Corporation" Device: pci 0x2a42 "Mobile 4 Series Chipset Integrated Graphics Controller" SubVendor: pci 0x1179 "Toshiba America Info Systems" SubDevice: pci 0xff50 Revision: 0x07 Driver: "i915" Driver Modules: "drm" Memory Range: 0xf4000000-0xf43fffff (rw,non-prefetchable) Memory Range: 0xd0000000-0xdfffffff (ro,non-prefetchable) I/O Ports: 0x1800-0x1807 (rw) IRQ: 46 (1321571 events) I/O Ports: 0x3c0-0x3df (rw) Module Alias: "pci:v00008086d00002A42sv00001179sd0000FF50bc03sc00i00" Driver Info #0: Driver Status: i915 is active Driver Activation Cmd: "modprobe i915" Config Status: cfg=new, avail=yes, need=no, active=unknown 09: PCI 02.1: 0380 Display controller [Created at pci.318] UDI: /org/freedesktop/Hal/devices/pci_8086_2a43 Unique ID: ruGf.Aa951Fv2j09 SysFS ID: /devices/pci0000:00/0000:00:02.1 SysFS BusID: 0000:00:02.1 Hardware Class: graphics card Model: "Intel Mobile 4 Series Chipset Integrated Graphics Controller" Vendor: pci 0x8086 "Intel Corporation" Device: pci 0x2a43 "Mobile 4 Series Chipset Integrated Graphics Controller" SubVendor: pci 0x1179 "Toshiba America Info Systems" SubDevice: pci 0xff50 Revision: 0x07 Memory Range: 0xf4400000-0xf44fffff (rw,non-prefetchable) Module Alias: "pci:v00008086d00002A43sv00001179sd0000FF50bc03sc80i00" Config Status: cfg=new, avail=yes, need=no, active=unknown -- Suspend problem with Maverick on ThinkPad W500 https://bugs.launchpad.net/bugs/644223 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