Comment 35 for bug 559163

I can confirm too, when laptop is docked, resume from suspend works (2.6.35-6-generic) and when i undock the laptop suspend doesnt work anymore. Only screen goes black and laptop ist locked.

But after restart undocked suspend work and resume not. Here is my dmesg after restart.

[ 1.159314] PM: Resume from disk failed.
[ 1.159346] registered taskstats version 1
[ 1.159815] Magic number: 6:674:135
[ 1.159867] block ram0: hash matches
[ 1.160060] rtc_cmos 00:06: setting system clock to 2010-08-12 16:08:20 UTC (1281629300)
[ 1.160071] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
[ 1.160078] EDD information not available.