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
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