I think I found some sort of "solution" for the suspend problem on my
Lenovo X200. By uncommenting 'SLEEP_MODULE="kernel"' in
/etc/pm/config.d/00sleep_module and adding acpi_sleep=s3_bios to the
boot options my computer is now suspending like it should.
The only strange this is that the screens shows the following error message for
1 second before retuning the screen after a suspend:
pm_op(): usb_dev_resume+0x0/0x10 [usbcore] returns -19
PM: Device 3-4 failed to resume: error -19
I guess this is not a real solution but until a real fix arrives this is
really helpful.
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Resume from suspend doesn't not work on the Mobile 4 Series chipsets
https://bugs.launchpad.net/bugs/276943
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