I have recently installed Natty on my Lenovo Ideapad s10-3 netbook. I have a problem: while I'm able to put my computer to suspension, it just won't wake up when I open the lid or press a key (any key).
Some of the indicators show activity (power, battery and wireless connection), but the display won't get turned on and the HD stops working. At the end, I always have to brutally power of the machine by holding power.
What could be causing this errror? I have an Ideapad s10-2 (the predecessor to s10-3) and it has absolutely no problem with the suspend option.
I've noticed that at the login screen - before logging in - I can suspend and resume without problems. When I log in the suspend function fails. I then tried to log out and suspend but it didn't resume. The other day I was at a friends house and logged in. I wasn't connected to his wireless network since it wasn't on my list of networks (fresh install of Ubuntu). I then suspended and resumed - when logged in - with no problems at all. After connecting to his network it failed again. That made me try suspending and resuming after disabling wireless connections by flicking off the switch on the side of the netbook. No dice. Next up I tried disconnecting from the wireless network from the connections applet in the status bar and then suspending and resuming. No dice this time either.
I tried Sebastian's answer, but it doesn't work. I did update the grub and all. No dice. It starts to annoy me big time. Any suggestions??