[ubuntu] laptop doesnt start when the lid is closed and opened again

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http://ubuntuforums.org – i have a laptop Lenovo 3000 N500, and Ubuntu 9.10 (upgraded from 9.04) i close the lid and then when i open it again computer doesn't want to start again, it has black screen and thene reports it can't find "swap" and then it's just black the screen, remains swicthed on, but doesn't respond to anything. i have chosen in the "power managment" section to just blank the screen when the lid is closed, cause i thought it's connected with "waking up" from sleep mode, but it responds just the same way as before... in ubuntu 9.04 i had option "do nothing" and it worked, but there's no such an option. crash report seems to be damaged... if anyone can help i'd appreciate! thanks! (Hardware)